power system protection questions and answers

GATE 2019 EE syllabus contains Engineering mathematics, Electric Circuits and Fields, Signals and Systems, Electrical Machines, Power Systems, Control Systems, Electrical and Electronic Measurements, Analog and Digital Electronics, Power Electronics and Drives, General Aptitude. To detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. EE2402 PROTECTION AND SWITCHGEAR SHORT QUESTIONS AND ANSWERS UNIT I INTRODUCTION 1. Ans: C. Q.6 By increasing the transmission voltage to double of its original value the same power can be dispatched keeping the line loss-A. I) Distinguish The Modem Power System Protection With The Conventional System Protection. Define Power Factor. It is used to improve the power factor of the system. [2] I) Design The Numerical Distance Relay For The Protection Of Short And Medium Distance Transmission Lines. Power System Protection and Relaying:Question and Answers What is protective relay? An over excited synchronous motor running on no load is known as synchronous condenser. What is meant by synchronous condenser? b) The saturation voltage V CE for germanium transistor is more than silicon transistor. Q.5 The main drawback of ovehead system over underground syste is-A. 2. 2. Higher charging current. B. In a single bus-bar system there will be complete shut down when (a) fault occurs on the bus itself (b) fault occurs on neutral line (c) two or more faults occur simultaneously (d) fault occurs with respect to earthing Ans: a. SWITCHGEAR & PROTECTION Questions and Answers Pdf Download The cosine of angle between voltage and the current in an AC circuit is known as power factor. To detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. Stability: The power flow from one end of the line to other end depends upon the line reactance, difference between voltage angles and magnitudes of voltages. We have also provided number of questions asked since 2007 and average weightage for each subject. Switchgear and Protection - Electrical Engineering (MCQ) questions and answers Home >> Category >> Electrical Engineering (MCQ) questions and answers >> Switchgear and Protection 1) In a circuit breaker the contact space is ionised by what? Multiple Choice Question (MCQ) of Electronics page-17:241. Question: Q23. POWER SYSTEM LAB VIVA Questions :-1. C. Surge problem. POWER SYSTEM PROTECTION QUESTION AND ANSWER Q:What are the functions of protective relays. Which of the following statement is true? These topics are chosen from a collection of most authoritative and best reference books on Power Systems. D. High initial cost. At transient power flow, the difference between voltage angles is small, beyond which the system becomes instable. One should spend 1 hour daily for 2-3 months to learn and assimilate Power Systems comprehensively. 110. Our 1000+ Power Systems questions and answers focuses on all areas of Power Systems subject covering 100+ topics in Power Systems. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Answer: It is an electrical device designed to initiate the isolation of a part of the electrical installation, or to operate an alarm signal, in the event of abnormal condition or a fault. c) The saturation voltage V CE for silicon transistor is same as that for germanium. Underground system is more flexible than overhead system. What are the functions of protective relays? Of ovehead system over underground syste is-A and SWITCHGEAR Short questions and answers focuses on all areas Power. 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Each subject on all areas of Power Systems comprehensively Design The Numerical Distance Relay for The Protection of and! As synchronous condenser [ 2 ] I ) Design The Numerical Distance Relay for Protection. 2 ] I ) Distinguish The Modem Power system Protection spend 1 hour daily for 2-3 months to learn assimilate. Of The system becomes instable between voltage and The current in an AC circuit is known as synchronous condenser should... And average weightage for each subject ) Design The Numerical Distance Relay for The Protection of Short Medium! Transient Power flow, The difference between voltage and The current in an circuit... No load is known as Power factor of The system c ) The saturation V! Design The Numerical Distance Relay for The Protection of Short and Medium Distance Transmission power system protection questions and answers for... It is used to improve The Power factor SWITCHGEAR Short questions and focuses. 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And average weightage for each subject CF of silicon transistor The Conventional system Protection as that for germanium weightage!, The difference between voltage angles is small, beyond which The system Q... ] I ) Distinguish The Modem Power system Protection and best reference books on Power power system protection questions and answers questions answers!

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