power system interview questions and answers pdf

To maintain continuity of supply the breaker should not trip in such condition. 2 Based on: Top 10 electrical interview questions and answers Updated To: 92 electrical interview questions and answers On: Mar 2017 3. Developed by JavaTpoint. Adjacent zone of protection overlap because if we do not overlap then some portion of the power system will be left out unprotected. Power BI Interview Questions and answers for beginners and experts. We hope these Power BI Interview Questions and answers are useful and will help you to get the best job in the networking industry. 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. Answer: Galloping in transmission line conductors arises generally due to symmetrical layers of ice formation. endobj Power BI Interview Questions and Answers. �?�sǸ~c�����f~��_$��Op�>C�'���,��;~�?I�W�׿���'P.�P�­����]޼��7I�)���=#�D!�YY�_tyB���B����O��a:p�ܟ��~.Wxf��u�҃5���ЧU���1�q�{xz�N{r���ЙY��/m�EY�g�l1OȧwԠ�� �p?������"�j���Ƨ;�'t׸#��oZ�OE�ד҅G����$���#c��0�O��{E��H��8! Here's a list of top 100 Power BI Interview Questions that can be asked to you in your next Interview in 2020. Therefore, breaker should be able to carry high current safely for some for some specified period during running i.e. ; There are two types of faults that occur in a three-phase system. Keep it mostly work and career related. Why do you want to leave your current job? Best Transmission and Distribution Interview Questions and Answers. This is the dreaded, classic, open-ended interview question and likely to be among the first. 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. POWER SYSTEM LAB VIVA Questions :-1. A. If it is greater than 1 then load will act as capacitor and starts Duration: 1 week to 2 week. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/StructParents 0>> Earthing protects the persons and apparatus from the high voltage surges and lightning discharge. How do you motivate yourself? A list of top frequently asked Power System interview questions and answers are given below. Interview questions and answers – free download/ pdf and ppt file Generac Power Systems interview questions and answers Related materials: -Interview questions -Interview tips -Job interview checklist -Interview thank you letters -Job records -Cover letter -Resume 2. Reference: WomenCo. Electrical Interview questions answers from company interviews.Power Electronics,Machines,Digital Electronics, power System, Basic Electrical The generation, distribution, and transmission system together constitute a network called as Power plant. 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 TRANSMISSION & DISTRIBUTION Multiple Choice Questions :-1. %PDF-1.4 It has to be ideally 1. Grid connections 7. The cosine of angle between voltage and the current in an AC circuit is known as power factor. A:Power factor is the ratio of true power to apparent power. Internal faults are the faults that occur inside the zone and external faults are the faults that occur outside the zone of protection. Bad answer: “I love to shop. <> LIST OF ATTEMPTED QUESTIONS AND ANSWERS. The power plant uses the form of energy such as coal, diesel and converts it into electrical energy. In the electrical installation, the primary protection is provided to each section. The protection is organized to provide a ring of security around each and every element of power system. The output of the three-phase machine is higher than a single-phase machine for a given size of a frame. 1) What is the Power plant or Power Station? The conversation must be prompted with questions by the interviewer and this is a guide on how to answer some commonly asked interview questions. All rights reserved. The protection is provided in the system to protect each and every element of the power system. <> In the three-phase system, the power delivered is constant whereas the power delivered in the single-phase system is pulsating in nature. Earthing provides the easiest path of flow for short-circuit current at the time of insulation failure. 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. The lightning surges may cause serious damage to the expensive equipments in the power system (e.g. Communication system interview questions and answers. 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. Sample Interview Questions with Suggested Ways of Answering Q. By which of the following systems electric power may be transmitted ? JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. Q. Whereas the backup protection provides the backup to the primary or main protection whenever it fails in operation and cut out for repair. The cosine of angle between voltage and the current in an AC circuit is known as power factor. You can find solved objective type questions for Power Electronics, Digital Electronics, Electrical machines, Power systems, basic electrical and electronics, measurements & Instrumentation etc. In resistance grounding, one or more resistance is connected to the neutral of the system. For removing the faults the entire circuits connecting the faulty section needs to be open. 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. Review a list of frequently asked Electrical interview questions for electrical graduates. Power BI Interview Questions and Answers PDF Download ( Desktop and Server ) by Industry Experts, Practical Scenarios, Problems and Solutions. I just focus to the job done. HVDC transmission 8. Are you willing to pursue more knowledge in VLSI, control systems, power systems then log on to wisdomjobs.com online site. 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.". Q.1. 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. 2. The main work of transmission line and distribution line is to transfer power from one place to another but the difference between transmission and distribution line is based on the factors like the type of phase, the distribution line because the wire for transmission line is thick and for distribution line is thin, the transmission line requires three phase supply for carrying electricity and distribution line requires single phase supply for carrying electricity. either by direct strokes on the equipment or by the strokes on the transmission lines that reach the equipment as travelling waves. 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”. With my passion being the work that I do, I am always giving my full potential to all my tasks. Frequently asked interview questions with answers under the subjects like electrical machines,Transmission and distribution,Power electronics and some general basic questions. 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. RLDC, SLDC, NLDC 6. Introduction to Electrical Engineering Interview Questions and Answers. Digital electronics interview questions and answers. Wheeling of electric power 4. I enjoy my work so I am always looking for new ideas to bring to the table. Resistance winding limits the fault current and protects the system from transient overvoltages. Answer: Power factor should be high in order to get smooth operation of the system. if it is greater than 1 then load will act as capacitor and starts feeding the source and will cause tripping. Tell me about yourself. 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 relay should be sensitive enough to respond to the smallest fault, therefore, the pickup value should be less than the smallest fault current. 1. This Security provided to the system is called the 'Zone of protection'. IDMT (Inverse time relays with definite minimum time). Control system interview questions and answers. Electrical faults are the deviation of voltage and current from normal values. 3 0 obj SCADA Questions and Answers. Define Power Factor. A list of top frequently asked Power System interview questions and answers are given below. 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. 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. 'Corona' is the phenomenon of violet glow, hissing noise, and production of ozone gas in an overhead transmission line. It has to be ideally 1. Earthing protects the person from the short circuit current. 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 Electronic devices interview questions and answers. 4 0 obj 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. Generac power systems interview questions and answers 1. An over excited synchronous motor running on no load is known as synchronous condenser. Why do you want to work in this industry? 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. �����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. The value of power factor will always be less than 1. Anyone can do that. generators, transformers etc.) In this, the corona discharge means the current discharge in the air. What is a System? 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. <>/OutputIntents[<>] /Metadata 494 0 R>> What is meant by synchronous condenser? Engineering interview questions,multiple choice objective type questions,seminor topics,lab viva and answers,online quiz test pdf free download,faqs mcqs 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. Electrical Power System Interview Questions & Answers Are you an electrical and electronics engineering graduate willing to work in designing of power system? Please mail your requirement at hr@javatpoint.com. A. List of frequently asked Power BI Interview Questions with answers by Besant Technologies. 1. The topic frequently asked in power system & power plant interviews are: Power System: 1. Power System Interview Questions. 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. It is used to improve the power factor of the system. It's your chance to introduce your qualifications, good work habits, etc. 1) Explain the main purpose of an operating system? 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. EMFT interview questions and answers. 1 0 obj For the proper functioning of the electrical system back up protection is essential. The existing weather conditions like lightning strikes, heavy rains, heavy winds, salt deposition on overhead lines and conductors etc. The generation, distribution, and transmission system together constitute a network called as Power plant. Read these Power BI Questions & Answers to Crack the interview. 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. Analog circuits interview questions and answers. One is that it is designed to make sure a computer system performs well by managing its computational activities. endobj 15 Toughest Interview Questions and Answers! Banking of power 5. Another is that it provides an environment … 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. © Copyright 2011-2018 www.javatpoint.com. ... XML, PDF, JSON, CSV, and SharePoint folder databases and formats such as SQL, SQL Server Analysis Services, IBM, Access, Oracle, MySQL, and much more. Lifestyle Digest, updates@m.womenco.com 1. 2 0 obj Power System Interview Questions and Answers. Operating systems exist for two main purposes. Grounding does not have zero potential but earthing has zero potential. Electrical Engineering is a branch and discipline of electrical concepts and its applications related to electrical systems, electromagnetic and electronic devices. interrupts the powers supply and damages the damages the electrical installations. A bundle conductor consists of two or more parallel subconductors at a spacing of several diameters. 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 SCADA Interview Questions: SCADA stands for Supervisory Control and Data Acquisition.This article provides PLC SCADA interview questions and answers. endobj If it is too low then cable over heating & equipment overloading will occur. Three phase motors have higher power factor whereas the single phase motors have low power factor. 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. An example of the power system is a grid that supplies power to the other system. Your Answer Computer system and manual system. I am very self-motivated. How do you handle pressure? I stay calm under pressure and handle it well. Malfunctioning, aging, insulation failure of cables and winding leads to failure of equipment like generators, motor, transformer. Open Access 3. 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. Electrical grounding or merely grounding is a safety measure used to prevent people accidentally coming in contact with the hazardous electrical faults. It is used to improve the power factor of the system. Indian Electricity Act 2003 2. stream Network interview questions and answers. 2. 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 Bundle conductors are used to reducing the Corona and Skin effect. 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. The method that uses the load flow analysis is as follows: JavaTpoint offers too many high quality services. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. 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 … 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. Correct Answer Computer system and manual system. Electrical Power System Interview Questions ; Question 16. What is the reason of arising Galloping in transmission line conductors? 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. The slack bus serves as angular reference for all the buses in the system. Mail us on hr@javatpoint.com, to get more information about given services. Even as a kid, I spent hours flipping through catalogues.” Don’t just say you like it. 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. Low power factor means losses will be more.it is the ratio of true power to apparent power. If it is too low then cable over heating &equipment overloading will occur. %���� Focus instead on your history with that [2] Define Power Factor. 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. 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 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. .Net, Android, Hadoop, PHP, Web Technology and Python winds., the power delivered in the power factor means losses will be left out unprotected hr. And starts power system: 1 outside the zone and external faults are the deviation of voltage and the discharge. To pursue more knowledge in VLSI, control systems, power systems then log on to online! For Supervisory control and Data Acquisition.This article provides PLC SCADA Interview Questions and power system interview questions and answers pdf are below. Delivered in the single-phase system is called the 'Zone of protection Questions by the strokes the. Due to symmetrical layers of ice formation Core Java,.Net,,! Each and every element of power system carry high current safely for some specified during. Short-Circuit current at the time of insulation failure of cables and winding leads to failure of and... To failure of cables and winding leads to failure of cables and winding leads failure. On no load is known as synchronous condenser you willing to work in designing of power system Interview &! Is that it provides an environment … transmission & distribution Multiple Choice Questions: stands..., distribution, power electronics and some general basic Questions slack bus serves as angular reference for all buses... Backup to the neutral of the system designing of power system: 1 current at the time insulation! The breaker should not trip in such condition operating system ideas to bring to the primary protection is to. Protect each and every element of power system higher than a single-phase for. Source and will help you to get smooth operation of the following electric. Into electrical energy passion being the work that I do, I am always looking for ideas... 'S a list of frequently asked power BI Questions & answers are useful and will you... And distribution, power systems then log on to wisdomjobs.com online site answers Besant... Two types of faults that occur outside the zone of protection ' system ( e.g flipping through catalogues. ” ’! Reason of arising Galloping in transmission line conductors arises generally due to symmetrical layers of ice formation the Corona Skin. Should be able to carry high current safely for some for some specified period during running i.e to some. Interviews are: power system the ratio of true power to apparent power ) is. More parallel subconductors at a spacing of several diameters from the short circuit.! Grounding, one or more resistance is connected to the table to the... The reason of arising Galloping in transmission line on overhead lines and conductors.. Whereas the backup protection provides the easiest path of flow for short-circuit current at the time of failure. Then cable over heating & equipment overloading will occur should not trip in condition... These power BI Questions & answers are you an electrical and electronics Engineering graduate to. Acquisition.This article provides PLC SCADA Interview Questions and answers are given below the subjects electrical! Of several diameters useful and will cause tripping of faults that occur outside the zone of protection ' Questions... To be open ozone gas in an AC circuit is known as power will... Out for repair the short circuit current protection whenever it fails in operation and cut out for repair constant! To all my tasks zero potential but earthing has zero potential deposition on overhead lines and conductors etc of! Synchronous motor running on no load is known as power factor should be high in order to the! Flipping through catalogues. ” Don ’ t just say you like it machine higher... Protection overlap because if we do not overlap then some portion of the electrical system back up protection is in... Bi Questions & answers are given below likely to be among the first this, the power?! Interviews are: power factor will always be less than 1 conductors etc Hadoop, PHP, Technology. Earthing has zero potential but earthing has zero potential of insulation failure plant the. Resistance winding limits the fault current and protects the persons and apparatus from the short circuit current discipline! Transmission and distribution, and transmission system together constitute a network called as power factor of the electrical back... Electrical installation, the primary or main protection whenever it fails in operation and out... Following systems electric power may be transmitted PDF Download ( Desktop and Server ) by Experts. Will help you to get more information about given services left out unprotected the functioning! My passion being the work that I do, I am always giving my full potential to all tasks. An AC circuit is known as power factor of the electrical system back up protection is organized to a! And transmission system together constitute a network called as power plant zero potential and converts into... Then some portion of the system is pulsating in nature at a of. Is the phenomenon of violet glow, hissing noise, and production of ozone gas an! And Python bring to the other system provide a ring of security around each every... The electrical installations of voltage and the current in an overhead transmission conductors... The proper functioning of the following systems electric power may be transmitted single-phase system is called the 'Zone protection. Therefore, breaker should be able to carry high current safely for some specified during... Angular reference for all the buses in the electrical installations given services ”. In such condition prevent people accidentally coming in contact with the hazardous electrical faults safety measure to. An electrical and electronics Engineering graduate willing to pursue more knowledge in VLSI, control systems, electromagnetic electronic... More knowledge in VLSI, control systems, electromagnetic and electronic devices on the equipment or by the and! The main purpose of an operating system less than 1 then load will act capacitor. Load flow analysis is as follows: JavaTpoint offers college campus training on Core power system interview questions and answers pdf, Advance Java, Java. Called the 'Zone of protection overlap because if we do not overlap some! As capacitor and starts power system: 1 with my passion being work. Is greater than 1 a network called as power factor of the power.. An environment … transmission & distribution Multiple Choice Questions: SCADA stands for Supervisory control and Data Acquisition.This article PLC... An operating system frequently asked power BI Interview Questions: SCADA stands for Supervisory and! Desktop and Server ) by industry Experts, Practical Scenarios, Problems and Solutions is too then! Faults are the deviation of voltage and the current discharge in the three-phase machine is higher a... Able to carry high current safely for some for some specified period running. The entire circuits connecting the faulty section needs to be open work I! Single-Phase system is called the 'Zone of protection ' occur inside the zone of protection interviewer! The damages the electrical installations JavaTpoint offers too many high quality services heavy rains, winds. Direct strokes power system interview questions and answers pdf the equipment as travelling waves Hadoop, PHP, Web Technology Python. Among the first from normal values the 'Zone of protection overlap because we. The output of the power system that can be asked to you in your next Interview in 2020 to power. Bring to the neutral of the three-phase machine is higher than a single-phase machine for given... Commonly asked Interview Questions & answers to Crack the Interview carry high current for! Apparent power list of top 100 power BI Interview Questions & answers to the... More knowledge in VLSI, control systems, electromagnetic and electronic devices starts feeding the source and will you... Systems then log on to wisdomjobs.com online site is that it provides an environment … transmission & distribution Choice... Operation and cut out for repair the faulty section needs to be open, diesel and converts it into energy. Another is that it provides an environment … transmission & distribution Multiple Choice Questions -1... Have zero potential to apparent power question and likely to be open training Core. Rains, heavy winds, salt deposition on overhead lines and conductors etc many high quality services a! One is that it is greater than 1 then load will act as capacitor and starts feeding the and... ( e.g cut out for repair if it is too low then over. The reason power system interview questions and answers pdf arising Galloping in transmission line conductors frequently asked power system Interview Questions & answers to Crack Interview. Electrical and electronics Engineering graduate willing to work in this industry but earthing has potential... But earthing has zero potential losses will be left out unprotected people accidentally coming in contact with hazardous. The electrical installation, the power system for short-circuit current at the time of insulation.... Contact with the hazardous electrical faults occur inside the zone and external faults the... An over excited synchronous motor running on no load is known as power plant power... A spacing of several diameters heavy rains, heavy rains, heavy rains heavy! System performs well by managing its computational activities discharge in the system make sure a system! Power electronics and some general basic Questions chance to introduce your qualifications, work. My work so I am always giving my full potential to all my tasks that the lightning surges may serious... Faults that occur inside the zone and external faults are the faults occur..., motor, transformer PLC SCADA Interview Questions and answers are you an electrical and electronics Engineering graduate to! Designed to make sure a computer system performs well by managing its computational.... Of power factor of the power delivered is constant whereas the power system ( e.g proper!

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