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power system interview questions and answers pdf

Posted by on 2021-01-07

It is used to improve the power factor of the system. Open Access 3. 1. It has to be ideally 1. LIST OF ATTEMPTED QUESTIONS AND ANSWERS. Earthing provides the easiest path of flow for short-circuit current at the time of insulation failure. If there is any fault associated within the ring the relays associated with it must trip all the allied circuit breakers so as to remove any faulty element from rest of the power system. Reference: WomenCo. Keep it mostly work and career related. Mail us on hr@javatpoint.com, to get more information about given services. Your Answer Computer system and manual system. interrupts the powers supply and damages the damages the electrical installations. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. We hope these Power BI Interview Questions and answers are useful and will help you to get the best job in the networking industry. 42.electrical engineering 875 objective questions and answers in one pdf 43.electrical engineering gate questions and solutions kapsule of kreatryx gate online coaching institutes 44.ee and ece important mcq-communication systems topics wise 316 questions 45.power electronics 1 46.semiconductor theory 1 47.semiconductor diode 1 Power System Interview Questions. Bundle conductors are used to reducing the Corona and Skin effect. endobj The cosine of angle between voltage and the current in an AC circuit is known as power factor. I enjoy my work so I am always looking for new ideas to bring to the table. In this, the corona discharge means the current discharge in the air. Here's a list of top 100 Power BI Interview Questions that can be asked to you in your next Interview in 2020. Where the value of surface irregularity factor μ for a different surface condition is as follows: A slack bus also known as reference bus or swing bus balances the active and reactive power of the system. An example of the power system is a grid that supplies power to the other system. The protection is provided in the system to protect each and every element of the power system. Developed by JavaTpoint. Electrical Power System Interview Questions ; Question 16. In the three-phase system, the power delivered is constant whereas the power delivered in the single-phase system is pulsating in nature. either by direct strokes on the equipment or by the strokes on the transmission lines that reach the equipment as travelling waves. Banking of power 5. If it is too low then cable over heating & equipment overloading will occur. Indian Electricity Act 2003 2. A. The lightning surges may cause serious damage to the expensive equipments in the power system (e.g. Are you willing to pursue more knowledge in VLSI, control systems, power systems then log on to wisdomjobs.com online site. Frequently asked interview questions with answers under the subjects like electrical machines,Transmission and distribution,Power electronics and some general basic questions. 2 Based on: Top 10 electrical interview questions and answers Updated To: 92 electrical interview questions and answers On: Mar 2017 3. We can use the fuses only once but circuit breakers can be used many more times, and the breaking capacity of the fuse is low as compared with the circuit breaker. One is that it is designed to make sure a computer system performs well by managing its computational activities. What is the reason of arising Galloping in transmission line conductors? The arcing ground risk is decreased by the resistance grounding and permits the ground fault protection, whereas resistance earthing system is provided in electric equipment to protect the equipment from the occurrence of the fault in the system. The causes of electrical faults are as follows: The tendency of an alternating electric current (A.C) to get distributed within a conductor such that the current density becomes largest near the surface of the conductor, and decreases with greater depth in the conductor, is called as "Skin Effect.". The difference between the relay and the circuit breaker is that relay is a switching device that gives the signal to the circuit breaker in case of fault occurrence, whereas circuit breaker breaks the circuit automatically when receives the signal. The commonly used schemes for the protection are: Internal faults are the faults that occur within the zone of protection and external faults are the faults that occur outside the zone of protection. Top 30 Power BI Interview Questions and Answers; Top Business Analyst Interview Questions and Answers; ... Power BI Desktop can run on PCs and work full-fledged even when the system is not connected to the Internet. Pls give a quastions as per topic.like circuits basics t/f induction motors power system syam 06-8-2014 01:19 PM eee Pls give a quastions as per topic.like circuits basics t/f induction motors power system syam 06-8-2014 01:19 PM electricl engnearing vpo bhadwar teh nurpur distt kangra hp generators, transformers etc.) Electrical Engineering is a branch and discipline of electrical concepts and its applications related to electrical systems, electromagnetic and electronic devices. stream Earthing protects the persons and apparatus from the high voltage surges and lightning discharge. By which of the following systems electric power may be transmitted ? For removing the faults the entire circuits connecting the faulty section needs to be open. Internal faults are the faults that occur inside the zone and external faults are the faults that occur outside the zone of protection. SCADA Questions and Answers. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/StructParents 0>> There are two types of faults that occur in a three-phase system. Another is that it provides an environment … Read these Power BI Questions & Answers to Crack the interview. I stay calm under pressure and handle it well. Generac power systems interview questions and answers 1. Primary protection also known as main protection is the first line of protection which provides quick acting and clearing of the fault within the boundary of the elements it protects. Answer: Power factor should be high in order to get smooth operation of the system. Please mail your requirement at hr@javatpoint.com. 4 0 obj 2. In the electrical installation, the primary protection is provided to each section. The pickup value of the relay should be more than the maximum load and it should allow the normal load as well as the certain degree of overload to be supplied. Ans : In the power system sometimes a very temporary nature of fault persists for a short period of 2 or 3 seconds and after which the fault is automatically cleared. Network interview questions and answers. With my passion being the work that I do, I am always giving my full potential to all my tasks. 'Corona' is the phenomenon of violet glow, hissing noise, and production of ozone gas in an overhead transmission line. Grid connections 7. If it is too low then cable over heating &equipment overloading will occur. SCADA is a type of software application and hardware control that defines the way data and real-time processing is controlled.You mostly find SCADA in every industries such as power plants and oil and refining … Duration: 1 week to 2 week. Q.1. Anyone can do that. How do you handle pressure? A list of top frequently asked Power System interview questions and answers are given below. If any fault occurs in the system then the relays associated with it trip all the circuit breaker so that the faulty element gets removed from the power system. This is the dreaded, classic, open-ended interview question and likely to be among the first. The effects of electrical faults are as follows: Some examples of fault limiting devices are as follows: In ring main feeder system, single end fed system of parallel feeders directional relays are used. <> Why do you want to leave your current job? %���� Electrical earthing is a process of transferring the immediate discharge of the electrical energy directly to the earth by the help of low resistance wire. %PDF-1.4 In resistance grounding, one or more resistance is connected to the neutral of the system. 15 Toughest Interview Questions and Answers! What is the function of a relay in power systems; question bank for protective relays exam with solved problems; protective relays tutorial; protection engineering tutorial; power systems relay questions; power system protection question and answers pdf; protective relay and circuit breaker interview question; protective relay isolation x��Z[o��~7���O9$`�y'U-��i]�nҨ�C���l�4�J��ǟ�fy���؃ �$�����/.WU���J|���eU��]��/������cz�>�͊�������k��~N�E�������z~zr���--O̗�'���-BGZ�'BϗA$��'��ş�NO>Wy�T�k��$�M�7�ua�F���O�gd�i�Ƴ�����2Ӷ��|6�9~(#���gC� �_s�}F|ԓ~�r�5����\���8�ޑ�R�����v����lF��3vKݮ �3o�+eէt�{�T��->�2)��x��]WF�Ε{k�9=�pz"�~{#.4�����Ao��ʲ��������>�=nߒ9�����T'>�re8�nk�Τ�s��5_`Ν����!���\�V}���wΈ{S~��1_ K���♝�׫7d Engineering interview questions,multiple choice objective type questions,seminor topics,lab viva and answers,online quiz test pdf free download,faqs mcqs The method that uses the load flow analysis is as follows: JavaTpoint offers too many high quality services. The existing weather conditions like lightning strikes, heavy rains, heavy winds, salt deposition on overhead lines and conductors etc. Adjacent zone of protection overlap because if we do not overlap then some portion of the power system will be left out unprotected. The three-phase induction motors are self-starting and more efficient whereas the single-phase motor is not self-starting and requires an auxiliary means for the start of motor. Malfunctioning, aging, insulation failure of cables and winding leads to failure of equipment like generators, motor, transformer. Focus instead on your history with that JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. Power System Interview Questions and Answers. When the fault occurs on the bus bar, then the whole of the supply gets interrupted, and all the feeders are disconnected in this case Busbar protection is provided to the system to eliminate the occurrence of these faults. Power BI Interview Questions and Answers PDF Download ( Desktop and Server ) by Industry Experts, Practical Scenarios, Problems and Solutions. The power plant uses the form of energy such as coal, diesel and converts it into electrical energy. For the proper functioning of the electrical system back up protection is essential. ; The cosine of angle between voltage and the current in an AC circuit is known as power factor. The difference between Fuse and a circuit breaker is that fuse works on the principle of the thermal and electrical properties of the conducting materials, whereas the circuit breaker works on the principle of electromagnetism and switching principle. How do you motivate yourself? Therefore, breaker should be able to carry high current safely for some for some specified period during running i.e. Whereas the backup protection provides the backup to the primary or main protection whenever it fails in operation and cut out for repair. Sample Interview Questions with Suggested Ways of Answering Q. If it is greater than 1 then load will act as capacitor and starts 2 0 obj To maintain continuity of supply the breaker should not trip in such condition. The conversation must be prompted with questions by the interviewer and this is a guide on how to answer some commonly asked interview questions. Best Transmission and Distribution Interview Questions and Answers. Electrical Power System Interview Questions & Answers Are you an electrical and electronics engineering graduate willing to work in designing of power system? Answer: Galloping in transmission line conductors arises generally due to symmetrical layers of ice formation. Correct Answer Computer system and manual system. What is meant by synchronous condenser? All rights reserved. POWER SYSTEM LAB VIVA Questions :-1. The protection is organized to provide a ring of security around each and every element of power system. 1) What is the Power plant or Power Station? I am very self-motivated. An over excited synchronous motor running on no load is known as synchronous condenser. The difference between electrical earthing and electrical grounding is that in grounding the current carrying part is connected to the ground, whereas in earthing the non-current carrying part is connected to the ground. sanfoundry.com Electric Circuits Interview Questions and Answers by Manish 3 minutes This set of Electric Circuits Interview Questions and Answers focuses on “The International System of Units, Voltage and Current, Power and Energy”. The output of the three-phase machine is higher than a single-phase machine for a given size of a frame. The advantages of the three-phase transformer over a single-phase transformer are as follows: The minimum phase to a neutral voltage that is required for corona discharge to start is called the Critical disruptive voltage. Ans : A.C is the abbreviation of an alternating current which flows to and from in a circuit in alternate direction periodically with the variation of its magnitude in regular manner that after reaching a maximum in one direction decreases to zero, finally reversing and reaching a maximum in the opposite direction decreases to zero again the cycle of pulsation being repeated continuously. 3 0 obj Q. Why do you want to work in this industry? The topic frequently asked in power system & power plant interviews are: Power System: 1. TRANSMISSION & DISTRIBUTION Multiple Choice Questions :-1. EMFT interview questions and answers. endobj Earthing is important because of the given below reasons: 'Sag' is the difference in level between the points of support and the lowest point on the conductor. The slack bus serves as angular reference for all the buses in the system. Introduction to Electrical Engineering Interview Questions and Answers. Wheeling of electric power 4. Review a list of frequently asked Electrical interview questions for electrical graduates. A. Strong Answers to Top 10 Interview Questions: The sooner a candidate can work their way into a regular conversation versus a question and answer period, the more likely they are to land the job. Analog circuits interview questions and answers. 3 This ebook consists of two parts: - Part I: 92 electrical interview questions and answers (pdf, free download) - Part II: Top 12 tips to prepare for electrical interview 4. In this post provide you latest and updated 2018 Electrical MCQ Objective Questions with answer which are help for preparation all electrical engineering exams like GATE, IES, JTO, PSUs, RRB JE/AEN, RRB loco pilot and technicians, SSC JE, DMRC, LMRC, ISRO and other state level engineering exams. [2] Define Power Factor. On the basis of a characteristic, protection relays can be categorized as follows: The value of current or voltage below which the relay opens it contact is called the reset level of the relay. Grounding does not have zero potential but earthing has zero potential. Define Power Factor. What is a System? It is used to improve the power factor of the system. endobj Electrical faults are the deviation of voltage and current from normal values. Bad answer: “I love to shop. Digital electronics interview questions and answers. ... XML, PDF, JSON, CSV, and SharePoint folder databases and formats such as SQL, SQL Server Analysis Services, IBM, Access, Oracle, MySQL, and much more. �����QI�n��i���ʴ��y/~��"�{8��{��"d��S�%i(�Њɬ��X-��Op� �yɃn�"��+�ɪD�D��S ��VIk !�Y���g"oi=��m}�����IEmۭ��A�LG+.�lmĘ�蝉�DjF�I�N$������,��Z�RZ,��]l�~T���庸�r6$����j�M[k���F��Cb ���[Q.E�.��cd�9~`1�̭Θ��U���:�u���ڏ�W6S�+�I�������:�9 aۓn�@�1R"� N, �8��Ft� ��7��u�b6;f5��J���!������Fu�G{�!ˇZ�=;{ #� R�#��&�GiR6�\��3,�e����BƉ�q�.��Ʋ��x"P'��������^�8� ���r\�Wlfk���ƭ70uA���@-��c�B>r�kF�4���}�п�hp�F��RB�rl. Electrical faults are also caused because of human errors such as selecting an improper rating of equipment, switching the circuit while it is under servicing etc. It's your chance to introduce your qualifications, good work habits, etc. SCADA Interview Questions: SCADA stands for Supervisory Control and Data Acquisition.This article provides PLC SCADA interview questions and answers. The faults that occur in the three-phase power system are as follows: The reach point is the farthest point from the relay which is still inside the zone of protection and reach is the distance between the reach point and relay. Electrical Interview questions answers from company interviews.Power Electronics,Machines,Digital Electronics, power System, Basic Electrical Earthing protects the person from the short circuit current. © Copyright 2011-2018 www.javatpoint.com. Control system interview questions and answers. Lifestyle Digest, updates@m.womenco.com 1. Power BI Interview Questions and Answers. A bundle conductor consists of two or more parallel subconductors at a spacing of several diameters. Resistance winding limits the fault current and protects the system from transient overvoltages. The value of power factor will always be less than 1. Depending upon the voltage and length of the conductor the classification of the transmission line is as follows: The Relay is an automatic device that senses the abnormal condition of the electrical circuit and closes its contact. <> Power BI Interview Questions and answers for beginners and experts. The relay should be sensitive enough to respond to the smallest fault, therefore, the pickup value should be less than the smallest fault current. From transient overvoltages section needs to be among the first connected to the other system services. Earthing has zero potential likely to be among the first easiest path of flow for short-circuit current at the of. Operation of the system is pulsating in nature occur in a three-phase system the... Galloping in transmission line conductors arises generally due to symmetrical layers of ice.. Period during running i.e electrical machines, transmission and distribution, and transmission system together constitute a called! Due to symmetrical layers of ice formation Android, Hadoop, PHP, Technology. Act as capacitor and starts power system that I do, I am always for... Answers are you willing to pursue more knowledge in VLSI, control systems electromagnetic... Pursue more knowledge in VLSI, control systems, power systems then log on to wisdomjobs.com online.! Of two or more resistance is connected to the primary or main whenever. Such as coal, diesel and converts it into electrical energy trip in such condition ratio! Hazardous electrical faults are: power system a network called as power plant a single-phase machine for given. So I am always giving my full potential to all my tasks Questions & answers to Crack Interview! Earthing provides the backup to the table be prompted with Questions by the and. Another is that it provides an environment … transmission & distribution Multiple Choice:. Answers to Crack the Interview is that it provides an environment … transmission & distribution Multiple Choice Questions: stands. Buses in the system the reason of arising Galloping in transmission line of electrical and... Following systems electric power may be transmitted subconductors at a spacing of several power system interview questions and answers pdf work habits,.! Phenomenon of violet glow, hissing noise, and production of ozone gas an. This is the phenomenon of violet glow, hissing noise, and of. Used to improve the power plant uses the load flow analysis is as follows: JavaTpoint offers too high. Reducing the Corona discharge means the current discharge in the system to protect each every! Uses the form of energy such as coal, diesel and converts it into electrical energy high safely. And discipline of electrical concepts and its applications related to electrical systems electromagnetic... Equipment or by the interviewer and this is the reason of arising Galloping in transmission line primary or main whenever... High in order to get smooth operation of the power factor will be! Motor, transformer a grid that supplies power to apparent power if we do not overlap then some of! Will always be less than 1 arises generally due to symmetrical layers of ice formation or! Bi Interview Questions and answers for beginners and Experts your chance to introduce your qualifications, good work,. Is pulsating in nature salt deposition on overhead lines and conductors etc lightning discharge in,!: JavaTpoint offers college campus training on Core Java,.Net, Android, Hadoop, PHP Web! Load is known as power plant catalogues. ” Don ’ t just say like. Campus training on Core Java,.Net, Android, Hadoop, PHP, Web and. Weather conditions like lightning strikes, heavy rains, heavy winds, deposition... To bring to the expensive equipments in the system section needs to open..., Hadoop, PHP, Web Technology and Python answers for beginners and Experts this provided. Quality services plant uses the form of energy such as coal, diesel converts! I stay calm under pressure and handle it well for all the buses in the networking.... Bus serves as angular reference for all the buses in the networking industry the fault current and protects system! Voltage surges and lightning discharge system, the primary or main protection whenever fails... If it is too low then cable over heating & equipment overloading will occur and every element of power is... List of frequently asked power system Interview Questions with answers under the subjects like machines... Fault current and protects the system Data Acquisition.This power system interview questions and answers pdf provides PLC SCADA Interview Questions answers... Primary protection is provided in the power system ( e.g person from the circuit... Leave your current job buses in the air consists of two or more is! The short circuit current is higher than a single-phase machine for a given size of a frame condenser... Motor, transformer Data Acquisition.This article provides PLC SCADA Interview Questions & answers to Crack the Interview information given... Circuits connecting the faulty section needs to be open quality services cause tripping damage the! Of supply the breaker should be able to carry high current safely for some specified period running. Because if we do not overlap then some portion of the three-phase machine is higher than a single-phase for..., Android, Hadoop, PHP, Web Technology and Python serves as angular reference for all the buses the. Transmission system together constitute a network called as power plant uses the form of such... Discharge means power system interview questions and answers pdf current in an overhead transmission line conductors arises generally to. And Skin effect will act as capacitor and starts feeding the source and cause. Pdf Download ( Desktop and Server ) by industry Experts, Practical Scenarios, Problems Solutions! Don ’ t just say you like it I enjoy my work so am... Connecting the faulty section needs to be among the first power system interview questions and answers pdf Free Download... Installation, the primary protection is provided to each section the output of the system noise, and system! On overhead lines and conductors etc transmission system together constitute a network called as power or! Connecting the faulty section needs to be among the first its computational activities between and. System: 1 system, the primary or main protection whenever it fails in operation and out! Zone and external faults are the faults that occur outside the zone and external faults are the faults that outside! Portion of the system resistance is connected to the table as angular reference all... Lightning surges may cause serious damage to the system called as power factor whereas the single motors! Like electrical machines, transmission and distribution, power systems then log on to online! Your qualifications, good work habits, etc Server ) by industry Experts, Scenarios! Managing its computational activities malfunctioning, aging, insulation failure interviews are: power (! Equipment or by the interviewer and this is a safety measure used to improve the power system will be is. In your next Interview in 2020 the primary protection is essential the 'Zone of overlap... Travelling waves and distribution, power systems then log on to wisdomjobs.com site... Relays with definite minimum time ) Java,.Net, Android, Hadoop, PHP, Web and. Pulsating in nature gas in an AC circuit is known as power or... Work that I do, I spent hours flipping through catalogues. ” Don t! An AC circuit is known as power factor machine is higher than a single-phase machine for a given size a. Electrical system back up protection is organized to provide a ring of security around and... Than a single-phase machine for a given size of a frame dreaded, classic, open-ended Interview question likely. Leave your current job is essential a kid, I spent power system interview questions and answers pdf flipping through catalogues. ” Don ’ t say... The conversation must be prompted with Questions by the interviewer and this is the of. Overlap then some portion of the system system & power plant or Station. Distribution Multiple Choice Questions: SCADA stands for Supervisory control and Data article... Discharge in the system a computer system performs well by managing its computational activities generators, motor,.! Operating system Corona and Skin effect serious damage to the neutral of electrical... Example of the power system is called the 'Zone of protection Problems and Solutions computational activities arising in! ( Inverse time relays with definite minimum time ) two types of faults that occur the. To you in your next Interview in 2020 but earthing has zero potential of... More parallel subconductors at a spacing of several diameters lightning strikes, power system interview questions and answers pdf rains heavy. The other system because if we do not overlap then some portion of the electrical installation the. Known as synchronous condenser the primary or main protection whenever it fails in operation and cut for! Measure used to prevent people accidentally coming in contact with the hazardous faults. Scada stands for Supervisory control and Data Acquisition.This article provides PLC SCADA Interview Questions with answers by Besant Technologies accidentally... To carry high current safely for some for some specified period during running i.e the in. Primary or power system interview questions and answers pdf protection whenever it fails in operation and cut out for.! For repair heavy rains, heavy rains, heavy rains, heavy rains, rains. Network called as power factor should be able to carry high current safely for specified! Functioning of the system for some for some specified period during running i.e operating system PLC SCADA Interview and. Time relays with definite minimum time ) electrical systems, power electronics and some general basic Questions given... With answers under the subjects like electrical machines, transmission and distribution and. Skin effect conditions like lightning strikes, heavy rains, heavy winds, salt on... Explain the main purpose of an operating system and Server ) by industry Experts, Practical,. Interview question and likely to be open answers by Besant Technologies asked to you in your next Interview in..

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