2. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Underground system is more flexible than overhead system. 110. 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. 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. 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. Higher charging current. Multiple Choice Question (MCQ) of Electronics page-17:241. What is meant by synchronous condenser? One should spend 1 hour daily for 2-3 months to learn and assimilate Power Systems comprehensively. 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. 2. An over excited synchronous motor running on no load is known as synchronous condenser. Our 1000+ Power Systems questions and answers focuses on all areas of Power Systems subject covering 100+ topics in Power Systems. 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. C. Surge problem. 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. These topics are chosen from a collection of most authoritative and best reference books on Power Systems. 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? We have also provided number of questions asked since 2007 and average weightage for each subject. 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 Question: Q23. c) The saturation voltage V CE for silicon transistor is same as that for germanium. I) Distinguish The Modem Power System Protection With The Conventional System Protection. Power System Protection and Relaying:Question and Answers What is protective relay? EE2402 PROTECTION AND SWITCHGEAR SHORT QUESTIONS AND ANSWERS UNIT I INTRODUCTION 1. Which of the following statement is true? 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. POWER SYSTEM LAB VIVA Questions :-1. D. High initial cost. POWER SYSTEM PROTECTION QUESTION AND ANSWER Q:What are the functions of protective relays. It is used to improve the power factor of the system. At transient power flow, the difference between voltage angles is small, beyond which the system becomes instable. Define Power Factor. What are the functions of protective relays? B. The cosine of angle between voltage and the current in an AC circuit is known as power factor. [2] I) Design The Numerical Distance Relay For The Protection Of Short And Medium Distance Transmission Lines. For The Protection of Short and Medium Distance Transmission Lines as Power factor MCQ. 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