Employees training and development of hrm will influence the performance of an organization.

Employees training and development of hrm will influence the performance of an organization. 1. Introduction Noe(2005) states that â€Å"Training and development is including activities that help cultivate employees skills, knowledge, and abilities. Trained employees have competencies to meet the current and future needs of organization. Through the training and intervention measures, the human resources departments help organizations to establish a high-performing, active and engaged workforce†. In the business world, training and development refers to support internal human resource efficiency of extra studies education and improve the process in an organization. Due to the training and development inseparable, these two words are generally used to define employee with each other in continuously improve to achieve a series of organizational goals. If without training and development programs, organization may not be able to realize their full potential. In most organizations, training and development task is to deal with human resource management personnel. This relationship depends on everybodys communication, cooperation and clear set of job skills as defined by job descriptions among all levels of the organization. When an organizations values can make employees eager to achieve their goals, then employee development plan can be implemented to make this kind of circumstance happening (Neo, 2005). The purpose of this assignment is talking about how employees training and development of HRM will influence the performance of an organization. I am going to find out some evidences, provide literature reviews and through analysis to introduce how training and development influence organizational performance. 2. Research Question This assignment topic describes that how the employees training and development of HRM will influence the performance of an organization.Training and development are important components of human resource. This is a process in which the potential talents and skills of employees are honed and polished. The employees are trained on both the technical aspects of their jobs and on interpersonal skills. This topic let people know the employees training and development of importance in the human resource management and what relationship between training development and performance of organization is. 3. Importance of Study Training and development is structure to help employees to develop their personal and organizational skills, knowledge and the abilities. For all aspects of human resource development, especially, the most superior workforce is the development, so that their organizations and individual employees can do the work goals for customer service. All employees want to be valuable at any times in the competitive labor market. This is only way can be achieved through staff training and development. All employees want to be valuable at any times in the competitive labor market. This is only way can be achieved through staff training and development. Employees always want to for improving career-enhancing skills, which will always lead to the enthusiasm and retention of the employees. there is no   doubt that a good training and development employees will be a valuable asset to the organization and Thus increasing opportunities of efficiency in performing his duties (Tobby,2011). Training can be primarily of two types in an organization: Internal and external training course. When training is the internal training, it is including that organizations internal hr department or training department is using a senior staff or any outstanding staff in specific sectors as a resource person. On the other hand external training normally conducted outside the company, mainly is organized training institutions or consultant. No matter which training, it is crucial for all staff and helps in building career positioning and preparation of staff for greater challenges (Tobby,2011). The employer should enable staff to pursue work training and development in a direction that they choose and are interested in, not just in assigned specific direction. The organizations should support the learning, in general, and not just in support of the current knowledge workers needed for the job or next expected. It should be noted that the key factor is to ensure employees engaged in the interest of, attending, and motivated and retained (Adiele, 2009). For every employee to perform well especially managers or supervisors, there is need for continued training and development. The right staff training, development and education offer big profit for the employer to the increased productivity, knowledge, loyalty, and contribution to common growth of the organization. In most cases, external training for the participants of the example provides a new way to meet people in the same field and network. The meeting will give them a chance to compare problems, find out what is to obtain the other side environment. It definitely will introduce positive changes where necessary (Adiele, 2009). 4. Literature Review 4.1 background information Noe(2005) states that â€Å"Traditionally, training and development was not considered as an activity that could help organizations to create â€Å"value† and deal with competitive challenges successfully. Nowadays, that view changed. Organizations use innovative training and development programs is likely to report better financial performance than their rivals that not do. Training and development also helps a company to meet competitive challenges. For instance, as organizations tried to put new products to market and adjust services just-in-time, employees need training and knowledge required as soon as possible delivery.† At present, training and development plays an important role in helping organizations meet some challenges. Therefore, organizations need to train employees to work with persons from different cultures both in domestic and foreign people. If the training such as Web and multimedia, these new technologies will reduce the costs associated with bringing employees to a central location for training. In homology, these training methods include the necessary conditions (feedback, practice, etc) for learning to occur. Due to the development of the internet, e-commerce has exploded on the business scene. Organizations have already recognized that training and development activities can adapt to the Internet, reducing costs and increasing their effectiveness, resulting in the development of electronic learning (Neo, 2005). Training effect has expanded beyond training program design. Effective instructional training is still important, but more and more training managers, human resource experts and training staff have been asked to create systems to motivate employees to learn, share that knowledge with other employees in the organization. Training has moved from an emphasis on a one-time event to the creation of conditions for learning that can occur through collaboration, online learning, traditional classroom training, or a combination of methods. There is increased recognition that learning occurs without a formal training course (Neo, 2005). 4.2 Key point 1 Better performance of the employees Training is a process of learning as well as the application of acquired knowledge aiming at better performance of the employees,while development involves not only in relation to the process, but also related to help employees in establishing their personality, at the same time as, improve their progress to realize their full potentials. Training and development programs bring a huge change in terms of knowledge, attitudes and behavior of employees. Because of these programs, the employees are not only familiar with what is expected of them and how they need to enhance their skills and abilities, but also it is a way to complete the entire organization development, effectiveness and efficiency in a desired manner. The major advantages of Training and development programs are the employees who are not trained need more supervision than those who are trained.An employee will gains new knowledge, skills and attitudes and applies them in their work situations.Training is a kind of method to build up confidence among the employees, so that they dont have any obstruction to operate their tasks. The purpose of this program is to save money, because the organization is likely to bear heavy expenditure on hiring new employees.This is also one of the best ways to expand the span of management. 4.3 Key point 2 Benefits for both the organization and employees The benefits of Training are intangible and it is good for both sides that the organization and employees for long-term investment in training. Training enhances the employees level of skills. It provides sense of satisfaction; this is a kind of inner motivation. The training also provides a variety of sills employees. Training increases the employees commitment to their job and their organization. It is better understanding of jobs reduces accidents (Ansar, 2009). The one of the most important benefits of an organizational training is that it provides skills within the organization to reduce comprehensive cost of the organizational operations. Quality is one of the key factors needed for survival of an organization in long term interests. Total Quality Management (TQM) and other quality management techniques require employees training as an important requisite for its successful implementation (Ansar, 2009). 4.4 Key point 3 Competitive lead To achieve competitive advantage from the organizational training and development, training and development department help remove insufficient or performance deficiencies in employee. It   is particularly true when (1) the deficiency is caused by a lack of ability rather than a lack of motivation to perform, (2) the individual(s) involved have the aptitude and motivation need to learn how to do the job better, and (3) supervisors and peers are supportive of the desired behaviors (Kumar, 2011). An organizational training and development pays dividends to the employee and the organization. Although there are no single training program benefits, the organization committed to improve its training and development to enhance its human resource capabilities and strengthens its competitive advantages. Meanwhile, the employees personal and career goals are furthered, generally adding to his abilities and value to the employer. Ultimately, the objectives of the human resource department are also furthered (Kumar, 2011). 4.5 Summary of Literature Review Training and development is a very perfect way to improve the competitiveness of an organization. It also enhances the employees skills, abilities and many other aspects. Actually, both of employees and organization obtain the benefits. Training and development program is one of the best ways to expand the span of management. It is also to save money for organization. 5. Analysis 5.1 Analysis for point1 Well-trained, skilled employees are far better than those without training, and they have better careers prospects. They will become competent and perform their assigned task independently. For example, once an untrained employee asked his friend who was trained, â€Å"I dont think training program is of any value. After all what you learn by it? † He replied, â€Å"We are trained even how to ask questions and the art of effective communication which you seem to be lacking.†In fact, its interesting example, but it reveals the fact as training is covered all necessary skills of the employees required in the workplace while motivating them to work in a desired and capable way (zeromillion.com, 2011). Internal training provides the accurate positioning and demand with satisfaction of those needs then interwoven into current processes and workflow. When a new problem or aspect of work is identified, training and development provides prompt development of the employee skills needed to master this process. Besides that, the training and development gives instructional staff opportunity for immediate correction of employee with mistakes in the workplace, immediate review, and more trainings identification. When training and development results have better effect, employees tend to display a greater sense of ownership and pride in their work. This can help organization to increasing productivity and efficiency, at same time, job satisfaction also increases.   Employees who are satisfied in their work are more likely to redouble their efforts and be more valuable to the company, which will in turn, put the organization in a stronger position (zeromillion.com, 2011). 5.2 Analysis for point 2 Customer satisfaction increases repeat business,this is a key to success.Training will promote good customer relations and according to training, organization will increase customer satisfaction and quality of service.â€Å"Just In Time† emphasize on waste reduction and production process of waiting time.Better training will reduce waste and machine down time. A major part of quality costs by supervision; by providing appropriate training this is reduced. Training improves productivity of employees and processes (Ansar, 2009). High staff turnover may be a serious threat to existence of an organization,training can reduce staff turnover and help an organization to retain its staff. Better training can make an organization more competitive in business market (Ansar, 2009). In a service industry organization main source of income is its employees professional knowledge and the skills, grasping professional with high skills is relatively expensive than training current employees to acquire those skills. Training is also a key requirement for new entry requirements; appropriate training helps them to understand their position, its requirements and responsibilities. Training will also increase the understanding organizational culture (Ansar, 2009). Training programs increases communication between different levels of an organization.Any shortage in processes and working were canceled and those close to production processes become involve in the management.Employees empowerment is a recent trend in management (Ansar, 2009). 5.3 Analysis for point 3Competitive lead There is greater flexibility, capacity, stability and for growth in an organization.Training provides employees at least in the stability of two aspects.Trained employees become efficient.Efficient employees contribute to the organization, especially when growth.In addition, well-trained employees tend to stay in the organization. They rarely left the organization.All generalists can be transferred to any job.Therefore flexibility is ensured.Growth indicates prosperity, which is reflected in increased profits from year to year.Who else but well-trained employees can contribute to the prosperity of an organization?According to training and development, accidents, scrap and damage to machinery and equipment can be avoided or minimized.Even complaints, absenteeism, dissatisfaction and turnover can be reduced if employees are trained well. Because of training and development programs, the future needs of employees will get satisfaction.Training serves as an effective source of recruitmen t. Training is an investment in human resources with a promise of better returns in future. Thus, organizations can get more competitive though the training and development (Kumar, 2011). 5.4 Summary of analyses They will become competent and perform their assigned task independently. Training can reduce staff turnover and help an organization to retain its staff. Better training can make an organization more competitive in business market. Trained employees become efficient.Efficient employees contribute to the organization. Finally, training and development can bring a lot of benefits to both of organization and employees. 6. Conclusion Recommendation 6.1 Conclusion In conclusion, we all know that training and development programs are important for an organization to develop the employee. When a child was born he required constant touch of parents till he stood on his own feet.An organization though flowered by creams of the society, still training is required due to rapid technological up gradation and change in working methods every day. Training aims at continued self-development of the employees. Employees are expected to develop themselves continuously in an organization. When the employees in an organization are developed from time to time with all updated knowledge, then definitely that organization will grow to a greater height. 6.2 Recommendation Both employees and companies are concerned with developing future skills and managing careers. Companies want a work force that is motivated and productive, has up-to-date skills, and can quickly learn new skills to meet changing customer needs. Employees want to develop skills that not only are useful for their current jobs but also are congruent with their personal interests and values. Employees are interested in developing skills that can help them remain employable with either their current employer or a future one. Given the increasing time demands of work, employees are also interested in maintaining balance between work and nonworking interests.

Restricted Earth Fault Protection

A Comparison Between High-Impedance and Low-Impedance Restricted Earth-Fault Transformer Protection Casper Labuschagne, Schweitzer Engineering Laboratories, Inc. Izak van der Merwe, Eskom Enterprises Abstract—Restricted earth-fault (REF) protection on a transformer is a subject for which there has been little attention and, compared to other types of protection, very little literature exists. Depending on the method of transformer earthing and fault location, some transformer earth faults result in only a small increase in phase current, which transformer differential protection may not detect.Conversely, the amount of current in the neutral may be sufficient to detect most or all earth faults, again depending on the earthing method. By connecting an REF relay to CTs installed in correct locations on the transformer, one can use REF protection to complement differential protection in detecting transformer earth faults. Obtaining maximum benefit from REF protection requires tha t one consider many factors, including whether to select high-impedance REF or lowimpedance REF relays. In making this selection, one should understand the theory behind each option.Historically, only high-impedance REF protection was available, because of equipment and technology limitations. Today, numerical protection relays include low-impedance REF elements for transformer protection. Both types of protection have advantages and disadvantages; the relays do not perform equally well in all applications. One key advantage of low-impedance REF protection included in a numerical relay is the ability to use CTs with different ratios and specifications without the need for interposing CTs.One key advantage of high-impedance REF is proven immunity (relay security) to CT saturation for external faults. Key to either type of protection is the ability to provide maximum winding coverage against earth faults. There is also speculation, as yet unsubstantiated, that a high-impedance REF ele ment provides superior sensitivity and coverage against earth faults. This paper summarizes the theory of classical high-impedance REF protection and new low-impedance REF protection.It also discusses issues such as relay sensitivity requirements, transformer fault current distribution, impact of fault location on relay performance (winding coverage), CT requirements, the impact of CT saturation response on REF protection elements, and application considerations for the two protection methods. current changes very little, but large current flows in the neutral conductor [1] [2]. REF takes advantage of the large current in the neutral conductor to provide sensitive and fast protection for transformer faults close to the earth point.REF protection applied to transformers may be referred to as â€Å"unit earth-fault protection,† and the â€Å"restricted† part of the earth-fault protection refers to an area defined between two CTs. Generally, REF protection can be applied in one form or another to all transformer windings, even delta-connected windings (see Delta Winding—NEC/R Earthed). On solidly earthed star windings, we will show that fault coverage is possible from the first turn above the star point, provided the REF element connects to a CT in the transformer neutral.This high winding coverage is possible because the relay operates on the high fault current in the neutral conductor instead of on the small fault current in the phase. On an unearthed star winding or a delta-connected winding without a neutral earthing compensator (NEC), winding coverage is reduced because of the lack of a neutral CT. Unearthed star windings or delta-connected winding installations provide phase CTs only (see Delta Winding—NEC/R Earthed), and the REF element operates on the change in phase current only. II. EARTH-FAULT CURRENT AND IMPACT ON SENSITIVITY A.Earth-Fault Currents in a Transformer for Different Connections When operating from the neutral C T, REF protection provides more sensitive earth-fault protection than does biased current differential protection. However, many setting engineers are uncertain as to the exact increase in sensitivity that REF protection provides. It is therefore necessary to quantify what one means by â€Å"more sensitive. † In the following discussion, we investigate the available fault current for star windings (solidly earthed, impedance earthed, and unearthed) and delta windings. ) Star Winding—Solidly Earthed For a solidly earthed star winding, an earth fault anywhere on the winding is similar to an autotransformer with a fault on the secondary side. Fig. 1 explains the phenomenon. I. INTRODUCTION Power transformers constitute the single most expensive item of primary plant in a substation. To protect this investment properly, transformer protection schemes contain a combination of protection elements, with biased differential protection widely used. Although biased ifferential p rotection provides excellent protection for phase-to-phase and most phase-to-earth winding faults, this element is less sensitive for single-phase-to-earth faults close to the earth point in solidly earthed transformers [1], [2], and [3]. For these faults, phase 2 NS x 14 Current (per unit) x Nc In In 12 10 8 6 4 Neutral Current Phase Current Fig. 1 Solidly Earthed Star-Connected Windings With Earth Fault X Per Unit From the Neutral 2 10 20 30 40 50 60 70 80 90 From Fig. 1, it can be seen that the turns ratio (TR) is as follows: TR = and In N + Ns 1 = c = Ip Nc xDistance of fault from neutral (percent of winding) Fig. 2 Neutral Current vs. Distance From Star Point in a Solidly Earthed HV Star Transformer (1) I n = I p †¢ TR = Ip x (2) Where Nc = the number of turns on the common winding (on the shorted part of the winding) NS = the number of turns on the series winding (on the healthy part of the winding) x = the distance from the neutral (p. u. ) Ip = primary side current In = fault current Therefore, for faults close to the neutral (when x is very small, on the order of 0. 1 p. u. ), the current flowing in the neutral is In = Ip/0. 1 = 10 †¢ Ip.Clearly, the change in neutral current is much greater than the change in phase current. Fig. 2 shows the difference in neutral current and phase current, plotted as a function of the fault distance from the neutral point [1] [2] [3] [4]. This curve was obtained from tests that were performed on a solidly earthed star transformer. (Because results vary for different transformer designs, the authors were unable to locate a formula that accurately describes the theoretical earth-fault current for all transformers). Fig. 2 shows that the neutral current (that also flows through the neutral CT) is always very high, in excess of 5 to 6 p. . For faults closer to the phase terminal of the star winding, there is reduced current contribution from the transformer neutral. Relay sensitivity is still not compromised, be cause the operating current through the relay is the sum of the neutral and phase current, with the phase current now higher than for faults near the neutral. Therefore, in the case of a solidly earthed star winding, relay sensitivity is not a problem for faults near the neutral because there is always sufficient current flowing in the neutral CT and through the relay and varistor to ensure relay operation. ) Star Winding—Resistance Earthed In the case of a resistance-earthed star winding, the relationship between fault location and fault current is linear, and the value of the earthing resistance determines the amount of fault current. From Fig. 1, assuming that the neutral is earthed through a resistor, we can see that the following is true: In = x †¢V 3†¢R (3) Where In = fault current x = the distance from the neutral V = the healthy phase-to-phase voltage R = the value of the earthing resistor Equation 3 presents a linear relationship between the fault location and the neutral current available to operate the relay.For small values of x, In is small and there may not be sufficient current to operate the relay. Therefore, for a resistanceearthed star winding, relay sensitivity is important for faults near the neutral. The value of x where the relay will begin operation is related directly to the relay operating current and the CT characteristics, i. e. , how much magnetizing current the CTs on the healthy phases will require. 3) Delta Winding—NEC/R Earthed In the case of a delta winding, there is always sufficient voltage to drive fault current through the fault and NEC/R.In theory, there is always at least half the phase-to-earth voltage available to drive the fault. This results in sufficient fault current, and relay sensitivity is not an issue [3]. 3 Because delta-connected windings do not have a star point, you can use the so-called balanced earth-fault connection or hybrid REF protection function in cases where the source is on the delta side of the transformer. In this case, the neutral CT is excluded from the circuit and the three-phase CTs are all connected in parallel with the relay element.The zone of protection is still only the delta winding of the transformer. The balanced earth-fault connection may also be applied to an unearthed star winding. III. RESTRICTED EARTH-FAULT PROTECTION THEORY To apply REF protection on star-connected transformers, connect the three-phase CTs in star, and connect this combination to a CT in the neutral leg of the transformer, NER or NEC, as shown in Fig. 3. These CT connections provide a path for the zero-phase sequence currents to circulate in the CTs during external faults, but they force the current through the relay for internal faults.Therefore, the REF relay provides protection for all earth faults that fall in the area between the phase and neutral CTs. Any fault outside this area should be covered by alternative protection functions. Red White Blue IFp Inp Ins Relay Ins Fig. 5 Internal Fault Indicating Operation on a Delta Winding With NEC A hybrid REF protection function may also be applied to a delta winding without an NEC. The hybrid REF excludes the neutral CT from the circuit and the three phase CTs are all connected in parallel with the relay element. This is called a balanced earth-fault connection.The zone of protection is still only the delta winding of the transformer. The hybrid REF function can also be applied to an unearthed star winding. A. High-Impedance REF Relay Element The high-impedance REF relay is normally a currentoperated relay with a resistor in series that provides stabilization. Generally, it may be one of two different types. The first type has internal resistors and has a voltage setting. In this type, the resistors are effectively switched in and out to change the setting and therefore the value of the stabilizing voltage.The second type has an external variable resistor where the setting is calculated in ohms and applied by changing the resistance of the variable resistor. 1) Design Considerations A number of design considerations must be taken into consideration when designing a high-impedance REF scheme. The most important considerations are described here: †¢ The ratio of the phase and neutral CTs must always be the same. †¢ In general, the CTs should have the same saturation characteristics. †¢ The kneepoint voltage must be higher than the stabilization voltage for external faults. The voltage across the relay and CTs (all in parallel) should be kept at safe levels while still being sufficiently high to allow operation of the relay when required. The magnetizing current of the CTs depends on the voltage across it, but too high a voltage results in higher magnetizing current that leads to a less sensitive scheme. †¢ In most cases, a metal oxide varistor (MOV) or surge arrestor is connected across the parallel connection of the CTs and relay to clamp the voltage to a safe limit, without affecting relay operation.The MOV protects the relay against high voltages developed during inzone faults. Sufficient current still flows through the relay to ensure operation [5]. Relay Relay Fig. 3 Basic Design of an REF Function Fig. 4 shows an external earth fault on the star (source) side of a transformer, and Fig. 5 shows an in-zone fault on the delta side of a transformer. Currents are in per unit. In Fig. 4, the zero-sequence infeed for an upstream red phase-to-earth fault circulates between the neutral CT and the red-phase CT, and no operating current can flow through the relay element.In Fig. 5, in the case of the in-zone fault on the delta winding, it is clear that all the fault current flows through the neutral CT (IFp = Inp) and nothing flows in the phase CT. Therefore, the secondary CT current has to flow through the relay element for this element to operate. At this stage, we simplify the scenario by not taking into account the magnetization of the other CTs. Red White Blue IF Relay IF – Inp Inp Ins Inp Inp Ins Fig. 4 ing External Fault Indicating Relay Stability on a Star-Connected Wind- 2) Setting Considerations The high-impedance REF scheme is set such that it is stable for a maximum through fault with one of the CTs completely saturated. Calculate VS, the stabilizing voltage, as follows: Vs = I f max †¢ ( RCT + RL ) n (4) Another important factor in the design of an REF scheme is the minimum allowable knee-point voltage of the phase and neutral CTs. This value is necessary during the design phase of the high-impedance REF scheme to ensure adequately specified CTs.To ensure that the CT does not saturate at the operating voltage, many engineers use a safety factor of 2. The knee-point voltage can be calculated as follows: Where Vs = the stabilizing voltage Ifmax = the maximum through-fault current detectable by the relay RCT = the winding resistance of the CT RL = the total lead resistance of the longest cond uctor between the relay and neutral or phase CTs n = the turns ratio of the CT In cases where the earth-fault current is limited through an NER or NEC/R, use the three-phase fault current as the maximum condition.With all four CTs of the same ratio, we expect the phase CTs (not the neutral CT) to saturate for external faults, because the three-phase fault current is higher than the earth-fault current. Therefore, we can ignore the resistance of the leads between the saturated phase CT and the relay. (The saturated phase CT and the relay are not necessarily near each other, so the lead resistances between them are not negligible). Phase CTs are generally located in close proximity to one another, so lead resistances between these CTs are negligible.VS is the value of the stabilizing voltage across the relay for maximum through-fault current and one saturated CT. The relay setting, Vset, is still unknown. If the voltage applied to the relay exceeds Vset, we expect the relay to operate . The most sensitive setting that can be applied is Vset = VS. Because network parameters change (higher fault current for example), Vset is usually selected higher than VS to allow for a safety margin. To ensure greater stability, one would select relay operating current greater than the sum of the healthy phase CT magnetizing currents at the set voltage.This ensures that the largest part of the secondary side fault current is used for the purpose of operating the relay and that less current is used for magnetizing the CTs on the healthy phases. Any mismatch in CT ratio will result in spill current, part of which will flow through the relay. Spill current cannot be related to current that flows on the primary side and flows on the secondary side. It may, therefore, cause the flow of â€Å"fictitious† current that results from CT inaccuracy.Not all spill current will necessarily flow through the relay; some of the current also flows through CTs (phase and/or neutral) not carr ying primary fault current. Effectively, the spill current flowing through the relay raises the voltage across the relay and CTs, causing more magnetizing current to flow. In the case of a through fault, equilibrium is reached between the voltage, relay current, and magnetizing current. Generally, relay current is far less than the operating current, as explained in the calculation of the stabilizing voltage. Vk = 2 †¢ Vs (5)Where Vk = the kneepoint voltage of the CT Calculate Iop, the minimum primary operating current (primary sensitivity) that causes the relay to operate, as follows: I op = n †¢ ( I R + m †¢ I m + I v ) (6) Where IR = the relay operating current m = the number of CTs needing magnetization (generally three) Im = the magnetizing current at the set voltage (to be obtained from the magnetizing curve test results of the CTs) Iv = the varistor current at Vs [5] From this discussion, it should be clear that the desensitizing factors are the magnetizing cur rent Im and the varistor current Iv.Use Equation 7 to calculate the actual impedance of the REF element. Because Vset is the voltage above which the relay operates, and because the relay resistance is much greater than RCT and RL, you can calculate the relay resistance as follows: RR = Vset IR (7) Where RR = the relay resistance Vset and IR are as defined above To verify correct calculation of operating current, it is possible to calculate the voltage across the relay for a specific inzone fault current. If the voltage is above the set voltage, consider this as confirmation that the relay will operate.You can calculate the operating voltage as follows: (8) n Because the relay is set to be stable under conditions where one CT saturates, it needs no additional time delays to improve security or its operation. B. Low-Impedance REF Relay Element Low-impedance REF protection is provided with new numerical or microprocessor-based protection relays. Generally, relay manufacturers employ di fferent methods to provide REF protection. In most cases, operation of the low-impedance REF protection is based on the fundamental current, after filtering removes all harmonic currents [3]. Vop = ( I op ? †¢ n †¢ I m ? I v ) †¢ ( RCT + RL + RR ) 5 The most important difference between classical highimpedance REF protection and new low-impedance REF protection is the input impedance. As with all numerical relays, the input impedance of the low-impedance REF is very low compared to high-impedance relays. For example, a lowimpedance relay typically has an input impedance of 0. 1 VA. At 1 A nominal rating, this computes to 0. 1 W. On the other hand, for a high-impedance REF relay with a voltage setting of 100 V and a 20 mA operating current, the input impedance is 5 kW. This is a significant difference.Low-impedance REF protection does not have the same inherent stability against CT saturation for external faults as does high-impedance REF protection. A second significa nt difference is that the operating current of the low-impedance REF protection is not realized by CT connection. With low-impedance REF, the relay measures all four CTs necessary to realize the element. Fig. 6 and Fig. 7 show the wiring and CT connections of the low-impedance REF elements. Fig. 6 shows the fault currents for an external fault on the primary star-connected side of a transformer, and Fig. shows an external fault on the secondary deltaconnected side of the transformer. Inp Red White Blue Ins IF + A Red White Blue Ins + A Inp Ins + Fault IF + B + C N Ins Inp IF – Inp Inp Fig. 8 Low-Impedance REF Connections With Internal Earth Fault on a Star-Connected Winding Red White Blue + + C B A IF Fault IF Ins N Ins Fig. 9 Low-Impedance REF Connections With Internal Earth Fault on a Delta-Connected Winding With NEC + B + C + IF – Inp Inp Fault Location B N Ins Inp Fig. 6 Low-Impedance REF Connections With External Earth Fault on a Star-Connected WindingA very impor tant advantage of low-impedance REF protection is the fact that the CT ratios for the phase CTs and neutral CTs do not have to be the same. Most low-impedance REF relays use an operating and a restraint current. The difference between different relays from different manufacturers lies in the way these relays determine the restraint quantities and in the CT saturation detection algorithm of each relay. Note that, in the case of low-impedance REF protection, there is no inherent immunity to CT saturation, as is the case with high-impedance REF protection.The following different methods are used to determine the restraint and operating current: Use of the residual current Ir = Ia + Ib + Ic as the restraint current and the differential current Id = Ia + Ib + Ic – In as the operating current. (9) 2. Use of the residual current Ir = Ia + Ib + Ic as the operating current and the neutral current In as the restraint current. (10) From Fig. 7, it may be seen that Ia = Ib = 0 for a blue -phase out-of-zone fault on the delta side of the transformer. From this, it is clear that |Ic| = |IF| = |Ins|.From Equation 9 above, one can see that the differential current can be defined as follows: Id = Ia + Ib + Ic – In = 0 + 0 +(–Ins) – (–Ins) = 0 and Ir = Ia + Ib + Ic = –Ins This shows clearly that there is restraint current but no differential or operating current for an external fault. From Equation 9 it can be shown that the following relationships are true: Id = Ins and Ir = 0 1. Ins C + B + A Ins IF N IF Fault Location Fig. 7 Low-Impedance REF Connections With External Earth Fault on a Delta-Connected Winding With NEC Fig. 8 and Fig. 9 show the same relay and CT connections for a low-impedance REF relay.They also show the current flow for in-zone faults on the primary star-connected and secondary delta-connected sides of the transformer, respectively. 6 This means that, while there is a large amount of differential or operating current , there is no restraining current. This can be shown similarly for in-zone and external faults on the star side of the transformer. Because of the nature of the protection, classical lowimpedance REF protection cannot be used as a balanced earthfault protection on an unearthed transformer or on a transformer with only three phase CTs and no neutral CT.In short, it is because the low-impedance REF protection requires a restraint and an operating current, at least one of which is also derived from the neutral CT. When a neutral CT is not provided, a low-impedance REF protection cannot be used to protect an unearthed transformer. However, most numerical relays provide a number of protection elements for each winding. To realize balanced earth-fault protection on an unearthed star-connected transformer or a delta-connected transformer, connect the CTs as explained under Delta Winding—NEC/R Earthed, and associate the CT input with an earth-fault element in the relay. ) Design Cons iderations Because of the inherently unstable nature of the lowimpedance REF element, it may misoperate during external faults, especially in the case of faults not involving earth as phase-to-phase and three-phase faults, when one of the phase CTs saturates. Various manufacturers of REF protection relays have each developed additional supervision elements to improve security during external faults while improving sensitivity during in-zone faults. All these relays scale the CT ratios automatically between the phase and neutral CTs to compare the different values on an equal basis. ) Product A [6] [7] This relay makes use of the direction change of the operating current for in-zone and external faults. It derives a zerosequence operating current from the phase CTs (Ir = Ia + Ib + Ic) and a polarizing current from the neutral CT (In). It then compares the direction of operating (Ir) and polarizing (In) currents. CT saturation logic is necessary to determine whether any existing zero- sequence operating current is from saturation of one or more CTs during a three-phase fault, or from an actual earth fault. CT saturation detection comes from a positivesequence restraint factor supervising the REF operation.The relay compares the positive-sequence current multiplied by the positive-sequence restraint factor (generally set to approximately 0. 1) with the zero-sequence operating current. For earth faults, the positive-sequence and zero-sequence currents are equal, so the result of this comparison will always be a logical 0, indicating no CT saturation. If zero-sequence exists as a result of CT saturation, CT saturation detection asserts whenever the ratio of zero-sequence to positive-sequence current is less than the positive-sequence restraint factor.Using the reasoning that current must flow in the transformer neutral for an earth fault, the relay enables the REF element only if the neutral current exceeds a threshold. Supervising the REF element with the neutral c urrent provides additional security against zero-sequence current in the line CTs resulting from CT saturation. Therefore, the relay enables the REF element only if the line CTs measure zero-sequence current and if the current in the neutral CT exceeds a pickup setting. The zero-sequence current pickup setting is therefore also the relay sensitivity.The zero-sequence pickup must be set higher than any natural zero-sequence current caused by load, CT mismatch/spill current, or any other unbalance. The minimum operating current of the relay is 5 percent of rated current (In). The directional element then compares the operating (residual phase current) and polarizing (neutral) currents and indicates a forward or reverse direction. A forward direction indication is for an in-zone fault, and a reverse direction is for an external fault.The fault is said to be in-zone when the residual and neutral currents are in phase; it is reversed if the residual and neutral currents are 180 ° out o f phase. b) Product B The basic principle of operation for this relay is to compare the residual (restraint) current Ir = Ia + Ib + Ic with the differential current Id = Ia + Ib + Ic – In, Where Ia, Ib, and Ic = the respective phase currents the neutral current flowing in the transIn = former as a result of the fault The relay compensates internally for the difference in CT ratios between phase and neutral CTs.In addition, the relay has a biased differential characteristic that you can set in such a way that the relay is desensitized for big differences in CT specifications and subsequent quiescent spill current under normal load conditions. In this case, the relay achieves stability for a through fault by increasing the restraint current when it detects a fault. The bias setting should still be set as sensitive as possible to ensure relay operation for most faults. The biased differential characteristic of this relay has a fixed slope of 1. 05 p. u. The relay will trip if 1) Id / Ir exceeds 1. 5 and 2) Id exceeds the Id pickup or threshold setting. The purpose of the restraint function is to compensate for CT errors and mismatches and to ensure stability during maximum through-fault conditions. The latter may cause CT saturation, and the bias characteristic provides additional stability against CT saturation. The relay has a minimum operating current of 5 percent of nominal current, or 0. 05 In. c) Product C [8] Similarly to Product A above, this relay uses the residual current calculated from the three phase CTs where Ir = Ia + Ib + Ic and the neutral current In for the REF protection.During an in-zone fault, neutral current will always flow irrespective of the transformer winding connection and earthing arrangement. The residual current depends on the transformer winding connection and earthing arrangement. In this case, if residual current exists, it will be in phase with the neutral current. During an external fault, the neutral and residual curren ts will be equal in magnitude and 180 ° out of phase. The relay uses In only as the operating current, and this current is always present during an in-zone fault. The relay pro- 7 ides a stabilizing method for CT saturation for through faults. Both the current magnitude and phase of the residual and neutral currents stabilize the REF protection. The stabilizing or restraint current is defined as follows: I res = k †¢ (| 3I n ? 3I r | ? | 3I n + 3I r |) (11) Where k = a stabilization factor In and Ir are as defined previously An examination of Equation 11 for both internal and external faults reveals that there is no effective restraint for internal faults because the value of restraint is always negative for internal faults.Therefore, the relay has maximum sensitivity, and small earth-fault currents can cause tripping of REF protection. The restraint for external faults is always positive and larger than the operating current, if the operating and restraint quantities are eit her in phase or 180 ° out of phase. During CT saturation, these angles may be different, resulting in reduced restraint for external faults. To prevent reduction of restraint, the relay calculates the angle between the operating and restraint quantities and then allows operation for a certain angle range and blocks operation for another angle range.For this specific relay, the angle is fixed at 110 °. No operation is possible if the angle between the operating and restraint quantities is greater than 110 °, irrespective of any other values of operating and restraint current magnitude. The stabilizing factor (k) is equal to 2 and is fixed. The relay provides further supervision by comparing the neutral current with the sum of the magnitudes of the three phase currents and the neutral current. The relay provides a settable pickup and slope and allows tripping above the characteristic.The relay has a minimum operating current of 5 percent of nominal current, or 0. 05 In. d) Produ ct D [9] The supplier markets this product as an â€Å"earth differential function† with an additional directional check. The relay, therefore, uses a typical biased differential earth-fault characteristic supervised by a directional element. The relay calculates the bias and differential current, where the differential current is the vector difference between the neutral current (measured by the neutral CT) and the residual current where Ir = Ia + Ib + Ic.The bias current is the highest of the three phase currents and the neutral current. The relay has a base sensitivity range of 5 percent (maximum sensitivity) to 50 percent (minimum sensitivity) for the differential current. This sensitivity value is valid from 0 to 1. 25 p. u. bias current. The bias characteristic has two slopes. The first slope is fixed at 70 percent, and the second is fixed at 100 percent. The first slope is valid from 1. 25 p. u. to a point corresponding to a 1 p. u. differential current. The second slo pe is valid beyond 1. 25 p. u.The directional element uses the neutral current as a reference because direction for this current is always the same for both in-zone and external faults. The relay compares the residual current with the neutral current in the vector plane. For an internal fault, the residual and neutral currents are out of phase. For an external fault, the residual and neutral currents are in phase. For the directional element, the relay compares the second harmonic current in the neutral CT with the fundamental component. If the second harmonic current is greater than a pre-set value, the REF element is disabled.This is a form of second harmonic blocking that provides additional security against operation during inrush but increased dependability during inzone faults. The relay has a minimum operating current of 5 percent of nominal current, or 0. 05 In. e) Product E [10] This relay calculates the differential current as Id = Ia + Ib + Ic + In and the residual curren t as Ir = Ia + Ib + Ic. Restraining current is the maximum of the positive-sequence, negativesequence, or zero-sequence current in the residual current. During external faults, the zero-sequence component of the residual current provides maximum restraint.The relay calculates the zero-sequence component as the amplitude of the vector difference between the neutral and residual current. During an external fault, the neutral and residual currents are in phase, so the resulting bias will be twice the neutral current. For an in-zone fault, the residual and neutral currents are out of phase so the restraint will be less than the neutral current. As previously stated, an external phase-to-phase fault can cause misoperation because of CT saturation. The negativesequence restraining quantity provides maximum restraint during such an external phase-to-phase fault.This relay uses a method where the level of restraint increases after a number of cycles. This method ensures the most sensitive r elay operation upon energization of a faulty transformer. When the restraint increases, security improves for external faults. The positive-sequence restraining quantity is intended to provide maximum restraint during symmetrical conditions such as three-phase faults and load. The relay uses a complicated algorithm to determine the value of the positive restraint component. Discussion of this algorithm is beyond the scope of this paper.The relay has a conventional bias characteristic with a pickup setting and slope setting. Both settings can be modified. 2) Setting Considerations for Maximum Sensitivity Some product-specific setting considerations have been discussed previously in this paper. Most relays have a minimum pickup level of 50 mA. Although all low-impedance REF relays this paper discusses have additional supervision for improved security, many manufacturers recommend a pickup setting greater than the steady-state neutral current resulting from load unbalance (quiescent ze ro-sequence current).This ensures that the relay picks up for actual faults, not for load unbalance. This practice reduces scheme sensitivity, because a greater operating current setting increases the minimum primary operating current. In cases where a biased earth differential protection is provided, the bias setting serves mainly to prevent the relay from operating for external faults resulting from CT saturation and other lesser important factors. These characteristics are fairly 8 fixed, and security against operation for external faults is almost guaranteed. IV.SENSITIVITY ISSUES This paper stated previously that relay sensitivity is not of great concern for faults on either solidly earthed star windings or impedance-earthed delta windings. There is always sufficient current to drive the operating element of the relay to ensure operation. Factors affecting REF scheme sensitivity are CT quality or specification, the magnetizing current the healthy phase CTs draw during a fault, the relay operating current, and the resistance earthing of the star-connected transformer. CT performance impacts greatly the sensitivity of the REF element.Lesser-quality CTs can make low-impedance REF protection more sensitive, because the operating voltage is lower and the CTs on the healthy phases draw less magnetizing current. Equation 6 provides relay sensitivity for both highimpedance and low-impedance REF, with slight variations between the two. The equation is valid for the high-impedance REF sensitivity calculation. In the case of low-impedance REF sensitivity, the varistor current is excluded and the relay does not have an operating voltage. Therefore, the magnetizing current is not the current the healthy phase CTs would draw at the operating voltage.A voltage equal to the sum of the lead and relay resistances multiplied by the fault current would appear across the healthy CTs. The magnetizing current of all CTs at this voltage should be added to the relay operating cur rent to determine the relay sensitivity. The lowimpedance REF measuring element will develop a much lower voltage across the healthy CTs and the magnetizing current necessary for those CTs will be substantially less than for the high-impedance REF case. Although the low-impedance REF relay minimum operating current is as much as 50 mA, the reduction in magnetizing current compensates for the greater pickup threshold.For example, assume that the CTs in a high-impedance REF scheme draw 15 mA magnetizing current at the operating voltage, and the relay operating current is 20 mA. It follows then that the total secondary current should be 4 †¢ 15 + 20 = 80 mA. The corresponding primary current must drive sufficient operating current through the relay to produce the magnetizing current necessary for the CTs to operate the relay. With a 200/1 CT ratio (impedance-earthed transformer), there is an implied minimum primary operating current of 16 A.For a typical 355 A NER, the only part o f the winding that is not covered, assuming zero fault resistance, is the bottom 16 / 355 †¢ 100 = 4. 5 percent. Taking the same example, assume that the CTs in a lowimpedance scheme draw only 2 mA magnetizing current because of the lower voltage across the CTs and the relay draws 50 mA. It follows then that the total secondary current should be 4 †¢ 2 + 50 = 58 mA. With the same CT ratio and NER as in the previous example, the minimum primary operating current is 11. 6 A. Clearly, the low-impedance REF function is more sensitive in this case. However, if the CTs used with the high- mpedance REF were of better quality and the magnetizing current were also 2 mA, the high-impedance REF relay would be more sensitive. In this case, (assuming zero fault resistance) the bottom 11. 6 / 355 †¢ 100 = 3. 3 percent of the winding is not covered. The transformer protection philosophy [11] of Eskom Distribution Division requires that the REF sensitivity for resistance-earthed star -connected windings be such that it can be set to pick up for faults between 10 percent and 25 percent of the maximum available earth-fault current for an earth fault on the transformer terminals.With this in mind, one can perform the necessary calculations to determine an adequate CT ratio and whether to apply high-impedance or low-impedance REF protection. As a general rule of thumb for high-impedance REF protection, the relay operating current should be greater than the sum of the CT magnetizing currents at the set voltage, i. e. , more fault current should be used to operate the relay than to magnetize the CTs on the healthy phases. This generally ensures greater stability. V. APPLICATION ASPECTS As we concluded previously, sensitivity becomes a concern only on resistance-earthed star windings.It is only in this case that the application of high-impedance vs. low-impedance REF protection must be considered. There are two important factors that may influence the decision. A. The Quality and Specification of the Available CTs Good-quality CTs with a very steep and linear magnetizing curve indicate CTs that require very little magnetizing current throughout most of the operating range. Poor-quality CTs require more magnetizing current. Perform calculations according to the specific CTs in use for a specific installation to determine the suitability of high-impedance vs. ow-impedance REF protection for the application. Perform this calculation as described under sensitivity issues. B. The Availability of Matching CT Ratios If the existing equipment is of such a nature that the same ratios are not available for both phase and neutral CTs, you should use low-impedance REF protection, because this type of protection can handle different CT ratios for phase and neutral CTs. However, if the same ratios are available for both phase and neutral CTs, further investigation should reveal whether high-impedance or low-impedance REF is the most suitable for the applicatio n.VI. CONCLUSIONS There is a general belief among many engineers that the fault current for faults close to the neutral point of a starconnected transformer is very small and insufficient to operate the REF protection. This is true only for resistance-earthed star-connected transformers. This paper makes no ruling on whether low-impedance or high-impedance REF protection is the better method, but it 9 provides the information and methods for choosing the more appropriate relay for a particular application.REF scheme sensitivity is a problem only on star windings with resistance earthing, because the fault current is a function of fault position, phase-to-neutral voltage, and earthing resistance value. For faults close to neutral, the fault current is very small. The relay operating current and CT magnetizing current are important in determining the winding coverage. In cases where there is always sufficient fault current to operate the REF relay, the choice between high-impedance an d low-impedance REF is not important.Issues such as available CT ratios for the phase and neutral CTs may dictate the choice. For poor-quality CTs that require larger magnetizing current than a better-quality CT at the same voltage, the lowimpedance REF element is more sensitive. Where you use good-quality CTs, however, the high-impedance REF relay is more sensitive. VII. ACKNOWLEDGEMENTS The authors wish to thank the following persons for their valuable contributions: Paul Gerber for his sensitivity calculations. Mike Everton for various discussions on the topic. Veronica van Zweel for the drawings.VIII. REFERENCES GEC Alsthom Measurements Limited, Protective Relays Application Guide, 3rd edition, 1990. [2] D. Robertson, ed. Power System Protection Reference Manual, Reyrolle Protection, Chapter 6, Stockfield: Oriel Press. [3] P. Bertrand, B. Gotzig, and C. Vollet, â€Å"Low Impedance Restricted Earth Fault Protection,† in Developments in Power System Protection, Conference P ublication No. 479, IEE, 2001. [4] SEL-387 Relay Training, Restricted Earth Fault Protection, Schweitzer Engineering Laboratories Inc. , Rev 0. 0, July 2001. [5] P. E.Sutherland, PE (SM), â€Å"Application of Transformer Ground Differential Protection Relays,† presented at the Industrial and Commercial Power Systems Technical Conference, Sparks, NV, 1999. [6] A. Guzman and L. S. Anderson, â€Å"Restricted Earth Fault Protection for Auto-Transformers Using a Directional Element. † Available at www. selinc. com [7] SEL-387-0, -5, -6 Instruction Manual, Current Differential Relay, Overcurrent Relay, Data Recorder, Schweitzer Engineering Laboratories, Date Code 20040628. [8] SIPROTEC, Differential Protection Manual, 7UT612, V4. , C53000– G1176–C148–1, Siemens. [9] Application Manual, ProtectIT Transformer Protection Terminal, RET521*2. 5, 1MRK 504 037-UEN, ABB. [10] T60 Transformer Management Relay, UR Series Instruction Manual, T60 Revision 4. 0x, Man ual P/N: 1601-0090-G1 (GEK-106490), GE Multilin, 2004 [11] P. A. Gerber, SCSAGAAG0 Rev 3, Transformer Protection Philosophy, Eskom Distribution Division, 2001. [12] Mini APPS Course (Analysis & Protection of Power Systems), vol 1, Section 9, Transformer Protection, 25 February to 1 March 1996. 1] Protection Field Engineer. He is currently a Chief Engineer: Protection Specialist in Resources and Strategy, a Corporate Division of Eskom Holdings Limited. He is responsible for Distribution Division National Contracts for protection schemes and equipment, general protection technology direction setting and technology management, and the implementation of Distribution Automation and Substation Automation in Eskom’s Distribution Division.He has authored a number of protection and substation automation related papers. He is a Registered Professional Engineer in South Africa. Casper Labuschagne earned his Diploma (1981) and Masters Diploma (1991) in Electrical Engineering from Vaal Tr iangle Technicon, South Africa. After gaining 20 years of experience with the South African utility Eskom, where he served as Senior Advisor in the protection design department, he began work at SEL in 1999 as a Product Engineer in the Substation Equipment Engineering group.Presently, he is Lead Engineer in the Research and Development group. He is registered as a Professional Technologist with ECSA, the Engineering Counsel of South Africa, and has authored and coauthored several technical papers. IX. BIOGRAPHIES Izak van der Merwe obtained his B. Eng (Electrical) degree from the University of Stellenbosch in 1991. He started to work for Eskom in 1993 as a  © 2005, 2007 by Eskom Enterprises and Schweitzer Engineering Laboratories, Inc. All rights reserved. 20070711 †¢ TP6207-01

The Leaked Secrets to Survey of Architecture Sample Essay Topics Uncovered

The Leaked Secrets to Survey of Architecture Sample Essay Topics Uncovered You have to write a minumum of one research paper in a semester for a lot of the subjects. Students go through plenty of stress. They lead busy lives and often forget about an upcoming deadline. Every student demands help with homework from time to time. The area of architecture is everywhere. Studying buildings that have been built thousands of years ago can be exceedingly pleasant and fascinating. If you want to have the own hard-earned volume of architecture then, you've got to compose a fantastic architecture thesis. Architecture is the gist of life as it's important for our modern times. It's critical that you pay attention to your field of study to assure your arguments are solid and strong. Relative questions ought to be grouped together so as to collect consistent data. Therefore, it's essential to glean from a large number of sources the essential info and rating criteria to provide a c urrent and productive evaluation of the state of rating materials for their sustainable price. To design a questionnaire, you have to first identify its objective. It's also excellent to make a questionnaire that concerns a student's individual experiences and opinions. A questionnaire has to be designed well enough for it to work. In any case, long, involved questions can make it hard that you collect effects. Closed-ended questions incorporate a list alternatives to pick from. To write a great research paper you want to be confident in your argument. Writing a research paper even though may appear challenging is a considerable portion of routine student life. Make the usage of the suggested research paper topic ideas and you'll be prosperous. When picking your research paper topic, you must make certain it is neither boring nor worn out. All essays will have a particular topic that's either one you choose or one which is provided for you. Within this section you will locate samples of essays belonging to different essay types and manners of formatting. Sources You have to use a minimum of 10 sources total for the 6000 word paper. The most frequently encountered paper writing service that the majority of our clients require is essay writing. When you're confronted with the job of writing a dissertation paper for your Ph.D. or Master's degree, there's one thing you want to bear in mind throughout the full course of action. Among the things to think about in essay writing is to understand how to begin an essay. If you're looking for assistance with your essay then we provide a comprehensive writing service offered by fully qualified academics in your area of study. The outline is a quick and quick method to receive your thoughts on paper. Selecting a research topic is something that everybody mostly goes about in the incorrect way. Use particular reasons and examples to back up your selection. Use particular reasons and examples to back up your opinion. Rumors, Deception and Survey of Architecture Sample Essay Topics There's, naturally, a limit on the variety of pages even our very best writers can pro duce with a pressing deadline, but generally, we figure out how to satisfy all the clients seeking urgent assistance. The revisions are completely free! You need to reveal the readers that you master of the subject and not a confused newbie who doesn't understand what he or she's speaking about. If you discover that the writer did not provide just what you expected, request a revision, and we'll make the corrections. Paraphrasing the question at the beginning of the introduction signals that the writer of an Architecture essay intends to produce the work relevant from the start all the way through the finish. What Does Survey of Architecture Sample Essay Topics Mean? Utilizing reliable sources for research is critical. While specific mechanical properties of pure fibers vary according to the specific fiber, the general performance of pure fibers lies within a comparatively tight range because of similar molecular composition. The structure doesn't have to be somewhat different, though. It's important for all of us to take note of the things that can impact someone's performance.

Analytical Essay On Fahrenheit 451 - 1044 Words

Khushi Jetley Mr. Chaput ENG2D0-L June 4 2017 Analytical Essay- Suppressing ideas and marginalizing humans is destructive. Censorship leads the society to an unpleasant conclusion. Censorship amounts prohibition of expression of someone’s ideas, thoughts which may be detrimental and prejudicial to a particular class of people. The book Fahrenheit 451, by Ray Bradbury, revolves around the idea of censorship as a bane to the society and culture. The book touches on various consequences of censorship like social isolation and infringement of thoughts. Bradbury has given an accurate representation of the society leading to an end as censorship proceeds to prohibit literature. Literature is power and censorship is suppressing it. Suppressing†¦show more content†¦This extract from an analytical essay by Hannah A. Weber explains the importance of literature in the society for communication and social interaction. The idea of an ending social society is expressed by both Weber and Bradbury. Both the writers draw conclusions on how the destruction of human social interaction is lead by the prohibition of literature and non-fictional ideas. It can lead to social isolation and loneliness. Literature aids us addressing human nature and conditions which have an impact on everyone. These are vital for the need for development, growth, ambiguity, and despair of prosperity and loss, the need for loved ones, the goodness of benevolence and affinity, faith, or the realization of inadequacy. Literature is hence, necessary for the society to associate with humanity. Literature attaches entities with the bigger realities and beliefs of society. It builds path for individuals to take note of their encounters, experiences, and thoughts in a way that is handy to others though fabricated accounts of experiences. Due to censorship individuals are no longer enough able to go under a thought process for themselves as they can’t connect their ideas. In Fahrenheit 451, when Montag visited Faber after reading for the first time he said to Faber, â€Å"I’m not thinking. I’m just doing like I’m told, like always. You said get money and I got it. I didn.i really think of it myself. When do I start working things out on my own?’(...) ‘You’ve started alreadyShow MoreRelatedAnalytical Essay on the Score of Psycho872 Words   |  4 PagesAnalytical Essay on the Score of Psycho The man behind the low woodwinds that opens Citizen Kane and the high pitched violins of Psycho (1960). Bernard Herrmann was one of the most original and distinctive composers ever to work in film. He started early, winning a composition prize at 13 and founding his own orchestra at 20. After writing scores for Orson Welles radio shows in the 1930s (including the notorious 1938 War of the Worlds broadcast), he was the obviousRead MoreThe Search For Meaning Through Culture1283 Words   |  6 Pagesmotivate the youth to help keep progressing. The fourth objective is to write a clear, accurate, and insightful analytical essay on the material covered (James Larner, Marcia Eppich-Harris, Annie Loechle, James Johnston, and Jeffrey Nelson.). The youth will not only be able to understand the different art, music and Western literature, but they will be able to discuss these pieces in essays. The fifth objective is to demonstrate involvement in the cultural life the of community by attending importantRead MoreDeveloping Management Skills404131 Words   |  1617 Pages168 How Creative Are You ? 169 Innovative Attitude Scale 171 Creative Style Assessment 172 SKILL LEARNING 174 Problem Solving, Creativity, and Innovation 174 Steps in Analytical Problem Solving 174 Defining the Problem 174 Generating Alternatives 176 Evaluating Alternatives 176 Implementing the Solution 177 Limitat ions of the Analytical Problem-Solving Model 178 Impediments to Creative Problem Solving 178 Multiple Approaches to Creativity 179 Conceptual Blocks 183 Percy Spencer’s Magnetron 185 SpenceRead MoreLogical Reasoning189930 Words   |  760 Pagesduring the course, you will improve the following skills: ï‚ · ï‚ · ï‚ · RECOGNITION of arguments EVALUATION of arguments CREATION of arguments â€Å"Critical thinking is skeptical without being cynical. It is openminded without being wishywashy. It is analytical without being nitpicky. Critical thinking can be decisive without being stubborn, evaluative without being judgmental, and forceful without being opinionated.† --Peter Facione Glossary argument An argument is a conclusion backed up by