What is protective relay? Which of the following types of relays are used to protect transformers and generators? Which of the following circuit breaker is generally used in applications in railways? Ans: (d), a) Circuit power factor only d) None of these Specially developed for the Electrical Engineering … b) The saturation voltage VCE for germanium transistor is more than silicon transistor. Home; Electrical Theory. B. c) Bulk oil circuit breaker This Security provided to the system is called the 'Zone of protection'. 700 apply to the installation of emergency systems. The conduction in JEFT is always by the 9th - University grade. Discussion on Power Systems Protection - Part I. c) Water Which drawing represents a Overcurrent (Non-Directional) Relay? Preview this quiz on Quizizz. Power System Protection — ENEE. c) Air blast circuit breaker Ans: (d), a) Current carrying contacts called electrodes The domains of power system where directional overcurrent relay is indispensable are . c) Holes They respond to the impedance between the relay location and the fault loction. Watch Now. b) Supply voltage Access study documents, get answers to your study questions, and connect with real tutors for EE 466 : Power System Protection at King Fahd University Of Petroleum & Minerals. By offering this quiz free of charge, we hope that people will enter a confined space with more knowledge than they previously had of … The correct answer is: b) False. C. Surge problem. 3. 1.In a circuit breaker, are is initiated by the process of. Similar Classes. b) CUJT STUDY. TOTAL 40 MARKS INDIA'S BEST WEBSITE FOR ELECTRICAL ENGINEERING STUDENTS. The protection is organized to provide a ring of security around each and every element of power system. Faults that occur within the zone are termed as Internal … d) Transmission lines In case of parallel feeder protection . It introduces the electric power system, from generation of the electricity all the way to the wall plug. When are you subjecting your computer to the greatest risk of external power problems? The objective of power system protection is to isolate a faulty section of electrical power system from rest of the live system so that the rest portion can function satisfactorily without any severe damage due to fault current. Objective Type Question or MCQ of Power System Protection page-1. Which drawing represents a Pilot Wire  Relay? A. 1.In a circuit breaker, are is initiated by the process of, a) Thermal emission The main … The next step is protection, with surge elimination and power conditioning equipment that can prevent these issues from reaching the system. Instructions Sheet. Power System Protection and Relays Questions & Answers . Ans: (a), a) Air break circuit breaker a) UJT d) 36 kV B. These objective type Power systems - Generation questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. b) 25 kV Basic Control system; Electronic measurement and Instruments. b) Switching condition only Economics of Operation page-5, Objective Type Question or MCQ of B. Power Quality Quiz Questions. Multiple Choice Question (MCQ) of Electronics page-15:211. 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Closes fuel shutoff, closes hydraulic shutoff, disconnects the generator field, and arms the fire-extinguishing system. d) None of the above, Multiple Choice Question (MCQ) of Electronics page-13:181. Economics of Operation page-4, Objective Type Question or MCQ of B. Reactance relay is normally preferred for protection against: If the fault current is 2000 amps, the relay setting is 50% and the C.T. Ans: (d), a) 4 kV In case of parallel feeder protection . The pulling out (or down) of an illuminated fire handle in a typical large jet aircraft fire protection system commonly accomplishes what events? This course familiarizes you with standards and policies of the electric utility industry, and provides you with basic vocabulary used in the business. C. Both A and B. D. None of the above View Answer. b) Minority carriers 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. Q.5 The main drawback of ovehead system over underground syste is-A. Twisted multiple-choice questions, true or false statements, and visual problems will force you to dig deep in your memory to recall all the facts learned on electrical safety. a) The saturation voltage VCF of silicon transistor is more than germanium transistor. Objective Type Question or MCQ of Power System Protection page-2. 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. b) Arc extinguishers c) Copper tungsten alloy MySafetySign.com has designed a free quiz to determine if you’re trained well for Electrical Safety PPE. 1. Power Quality and Protection DRAFT. Power system protection vladimir. In case of ring main feeder protection . Protection and Control of Modern Power Systems is an international academic journal co-published by Power System Protection and Control Press and Springer. mcqelectrical4u. Power Quality Quiz Questions Answers) Search for: Related Pages. Hindi Electrical Engineering. Which drawing represents a Balanced Current Relay? Which of the following circuit breaker is generally used in applications in railways? The domains of power system where directional overcurrent relay is indispensable are . b) Oil Home; Electrical Theory. The journal is devoted to presenting new theories, technologies and top-level academic achievements in the field of protection and control in modern power systems. 1.8 Various Power System Elements That Need Protection 23 1.9 Various Principles of Power System Protection 23 Reuiew Questions 24 Problems 25 2 OVER-CURRENT PROTECTION OF TRANSMISSION LINES 26-56 2.1 Introduction 26 2 2 Fuse 26 2.3 Thermal Relays 27 2.4 0; er-current Relay 28 2.4.1 Instantaneous OC Relay 29 Preview this quiz on Quizizz. is 400/5, then the plug setting multiplier should be: If the time operation of a relay for unity TMS is 10 sec, what is the time of operation for 0.5 TMS. The purpose of the short circuit study is to determine the ability of each component within an electrical system to withstand and/or interrupt the system current. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are Offered by University at Buffalo. 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