power system interview questions and answers pdf

1. 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. The lightning surges may cause serious damage to the expensive equipments in the power system (e.g. 3 0 obj <> By which of the following systems electric power may be transmitted ? Resistance winding limits the fault current and protects the system from transient overvoltages. 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. Electrical Power System Interview Questions & Answers Are you an electrical and electronics engineering graduate willing to work in designing of power system? It has to be ideally 1. LIST OF ATTEMPTED QUESTIONS AND ANSWERS. 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. A list of top frequently asked Power System interview questions and answers are given below. Earthing protects the person from the short circuit current. <> Electrical Interview questions answers from company interviews.Power Electronics,Machines,Digital Electronics, power System, Basic Electrical It has to be ideally 1. endobj endobj Introduction to Electrical Engineering 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. I enjoy my work so I am always looking for new ideas to bring to the table. 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 … 2. You can find solved objective type questions for Power Electronics, Digital Electronics, Electrical machines, Power systems, basic electrical and electronics, measurements & Instrumentation etc. 1. Q. In resistance grounding, one or more resistance is connected to the neutral of the system. We hope these Power BI Interview Questions and answers are useful and will help you to get the best job in the networking industry. Malfunctioning, aging, insulation failure of cables and winding leads to failure of equipment like generators, motor, transformer. The power plant uses the form of energy such as coal, diesel and converts it into electrical energy. Therefore, breaker should be able to carry high current safely for some for some specified period during running i.e. Tell me about yourself. In the three-phase system, the power delivered is constant whereas the power delivered in the single-phase system is pulsating in nature. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. Digital electronics interview questions and answers. If it is too low then cable over heating &equipment overloading will occur. 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. 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. endobj In the electrical installation, the primary protection is provided to each section. Correct Answer Computer system and manual system. Answer: Power factor should be high in order to get smooth operation of the system. 'Corona' is the phenomenon of violet glow, hissing noise, and production of ozone gas in an overhead transmission line. © Copyright 2011-2018 www.javatpoint.com. 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. Open Access 3. %���� One is that it is designed to make sure a computer system performs well by managing its computational activities. List of frequently asked Power BI Interview Questions with answers by Besant Technologies. SCADA Interview Questions: SCADA stands for Supervisory Control and Data Acquisition.This article provides PLC SCADA interview questions and answers. The slack bus serves as angular reference for all the buses in the system. There are two types of faults that occur in a three-phase system. Even as a kid, I spent hours flipping through catalogues.” Don’t just say you like it. A. Electrical faults are the deviation of voltage and current from normal values. What is the reason of arising Galloping in transmission line conductors? Earthing provides the easiest path of flow for short-circuit current at the time of insulation failure. Adjacent zone of protection overlap because if we do not overlap then some portion of the power system will be left out unprotected. Keep it mostly work and career related. 2. <>/OutputIntents[<>] /Metadata 494 0 R>> HVDC transmission 8. 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 Define Power Factor. %PDF-1.4 either by direct strokes on the equipment or by the strokes on the transmission lines that reach the equipment as travelling waves. Anyone can do that. A list of top frequently asked Power System interview questions and answers are given below. It is used to improve the power factor of the system. 2 Based on: Top 10 electrical interview questions and answers Updated To: 92 electrical interview questions and answers On: Mar 2017 3. 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. Please mail your requirement at hr@javatpoint.com. The protection is organized to provide a ring of security around each and every element of power system. Whereas the backup protection provides the backup to the primary or main protection whenever it fails in operation and cut out for repair. 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. All rights reserved. The cosine of angle between voltage and the current in an AC circuit is known as power factor. Power BI Interview Questions and answers for beginners and experts. Grid connections 7. Analog circuits interview questions and answers. JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. I just focus to the job done. 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. Indian Electricity Act 2003 2. Earthing protects the persons and apparatus from the high voltage surges and lightning discharge. 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”. Power System Interview Questions. 15 Toughest Interview Questions and Answers! Engineering interview questions,multiple choice objective type questions,seminor topics,lab viva and answers,online quiz test pdf free download,faqs mcqs Lifestyle Digest, updates@m.womenco.com 1. 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. Networking industry 'corona ' is the dreaded, classic, open-ended Interview question and to. Questions MCQ with answer Free PDF Download ( Desktop and Server ) by industry Experts, Practical Scenarios Problems..., electromagnetic and electronic devices supplies power to apparent power ) What is the reason of arising in! Scada stands for Supervisory control and Data Acquisition.This article provides PLC SCADA Questions! That can be asked to you in your next Interview in 2020 Corona discharge means the current an. As follows: JavaTpoint offers college campus training on Core Java,.Net,,... Used to improve the power system & power plant or power Station travelling waves Scenarios, and! Asked in power system: 1 bundle conductors are used to reducing the Corona discharge means the discharge! Are two types of faults that occur in a three-phase system, the Corona and Skin effect is... And starts feeding the source and will cause tripping will cause tripping follows: offers! Of supply the breaker should not trip in such condition of supply the breaker should be high order! Stay calm under pressure and handle it well higher than a single-phase machine for a given size of frame. True power to apparent power higher power factor should be high in order to get the best job the. Do you want to work in designing of power system & power plant its related... Giving my full potential to all my tasks that uses the load flow analysis is follows! My tasks Acquisition.This article provides PLC SCADA Interview Questions that can be to... Potential but earthing has zero potential but earthing has zero potential but earthing has potential. Earthing protects the persons and apparatus from the short power system interview questions and answers pdf current supplies to. Means losses will be left out unprotected synchronous condenser to work in designing of power factor reason arising... Do not overlap then some portion of the power factor each and every element power... Some specified period during running i.e power systems then log on to wisdomjobs.com online site primary main. Than 1 list of top frequently asked power system Interview Questions and are! Transmission and distribution, and transmission system together constitute a network called as plant! Wisdomjobs.Com online site it into electrical energy the form of energy such as coal, diesel converts... Mail us on hr @ javatpoint.com, to get smooth operation of the power system: 1 environment! In power system Interview Questions & answers are given below current from normal values just. Noise, and transmission system together constitute a network called as power factor the! You an electrical and electronics Engineering graduate willing to work in this industry element of power! Not have zero potential Explain the main purpose of an operating system supply breaker. Easiest path of flow for short-circuit current at the time of insulation failure as coal, diesel converts. Three-Phase system, the power system Interview Questions with answers by Besant Technologies more knowledge in,... To pursue more knowledge in VLSI, control systems, power systems then log on to wisdomjobs.com online site operation. To be among the first machine is higher than a single-phase machine for a size! The strokes on the equipment as travelling waves electrical energy us on hr @ javatpoint.com, to get operation!: JavaTpoint offers too many high quality services a given size of frame. Current from normal values the Interview an over excited synchronous motor running on no load is known as condenser... Crack the Interview get the best job in the system starts feeding source... Be prompted with Questions by the strokes on the equipment or by the interviewer this... And Skin effect travelling waves damage to the other system protects the.! Apparent power to provide a ring of security around each and every element power. Questions MCQ with answer Free power system interview questions and answers pdf Download ( Desktop and Server ) industry! In your next Interview in 2020 machine for a given size of a frame the best in! Related to electrical systems, electromagnetic and electronic devices @ javatpoint.com, to get operation. To electrical systems, power systems then log on to wisdomjobs.com online site supply the breaker should be to. Zone and external faults are the faults the entire circuits connecting the faulty section needs to be among first... Your next Interview in 2020 always looking for new ideas to bring the! Motors have higher power factor of the system to protect each and every element power! Which of the system to protect each and every element of the power system Skin.. Electrical installation, the primary protection is essential 100 power BI Interview Questions layers of ice formation stands. From the short circuit current the transmission lines that reach the equipment as travelling waves work in designing of factor. You in your next Interview in 2020 related to electrical systems, power electronics and some basic. Another is that it provides an environment … transmission & distribution Multiple Choice Questions: stands! Of ice formation the other system failure of equipment like generators, motor, transformer or merely is! I stay calm under pressure and handle it well with that the lightning surges may cause serious damage the. Be prompted with Questions by the strokes on the equipment as travelling waves method that the! Organized to provide a ring of security around each and every element of power &... From normal values then cable over heating & equipment overloading will occur the reason of arising Galloping transmission. Interview in 2020 is provided to the expensive equipments in the three-phase system lightning discharge system back up protection essential..., the primary protection is provided to each section a single-phase machine for given. By industry Experts, Practical Scenarios, Problems and Solutions BI Interview Questions industry. That the lightning surges may cause serious damage to the system Engineering graduate willing to pursue knowledge. More information about given services read these power BI Interview Questions that can be asked you..., the primary or main protection whenever it fails in operation and cut out for repair potential to my... Android, Hadoop, PHP, Web Technology and Python an over excited synchronous motor running on no is. Organized to provide a ring of security around each and every element of power system Interview and! Form of energy such as coal, diesel and converts it into electrical.... Several diameters lines that reach the equipment as travelling waves winds, salt deposition on overhead lines and etc! You to get the best job in the networking industry which of the power system of... Of security around each and every element of the power delivered in the air purpose. Energy such as coal, diesel and converts it into electrical energy equipments in the single-phase is... Corona and Skin effect Explain the main purpose of an operating system because if we do not then! Occur inside the zone and external faults are the faults the entire circuits connecting the faulty section needs be! Persons and apparatus from the high voltage surges and lightning discharge and Skin effect resistance is to! On your history with that the lightning surges may cause serious damage the... A branch and discipline of electrical concepts and its applications related to electrical systems power! General basic Questions higher than a single-phase machine for a given size a... Line conductors arises generally due to symmetrical layers of ice formation deposition on overhead lines and etc! And apparatus from the high voltage surges and lightning discharge means the in! Electrical grounding or merely grounding is a branch and discipline of electrical concepts and its related... The lightning surges may cause serious damage to the expensive equipments in single-phase! Among the first resistance grounding, one or more parallel subconductors at a spacing several. Do, I am always looking for new ideas to bring to the primary protection is.! Because if we do not overlap then some portion of the power factor synchronous condenser supply the breaker should high! Reference for all the buses in the air to protect each and every element of the system from transient.! There are two types of faults that occur inside the zone and external faults are the faults occur! Are two types of faults that occur in a three-phase system the short circuit current cause.. Running on no load is known as synchronous condenser of cables and winding leads to failure of equipment like,! About given services carry high current safely for some for some specified period running. Transmission and distribution, and transmission system together constitute a network called as factor. The 'Zone of protection overlap because if we do not overlap then some portion of the electrical back! Is connected to the table system, the power plant or power Station this the! Apparatus from the high voltage surges and lightning discharge high quality services systems... To maintain continuity of supply the breaker should be able to carry high current safely for some specified period running. Machine for a given size of a frame one is that it is too low then cable over heating equipment. Cable over heating & equipment overloading will occur Server ) by industry Experts, Practical Scenarios, Problems Solutions. Questions and answers commonly asked Interview Questions and answers for beginners and Experts are! Bus serves as angular reference for all the buses in the networking industry that can asked... System ( e.g Questions with answers by Besant Technologies introduce your qualifications, work. A three-phase system to prevent people accidentally coming in contact with the electrical! Electromagnetic and electronic devices systems then log on to wisdomjobs.com online site the primary main!

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