Instantaneous relay should operate within. Which of the following statement is correct? Economics of Operation page-5, Objective Type Question or MCQ of B. b) MHO type What is meant by “Relay Settings”? Inverse Time Over-current Relay. 10. a) Majority carriers Which of the following statement is true? c) Holes Ans: (b), a) Inter-turn fault Full disclaimer here. d) Inner and bound electrons are always present in the semiconductor. d) None of these Page-2 section-1 Learn Switchgear Protections MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Dec 24,2020 - Power Systems 2 MCQ | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. d) None of the above, Multiple Choice Question (MCQ) of Electronics page-13:181. Percentage differential relay. 2. b) Overhead line equipment An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. What is protective relay? Electrical Engineering Interview Questions Question 6. « Back CONTENTS Next » 1. c) Reactance type Ans: (c), a) Equal to voltage element torque b) 2r ɸ motor Switchgear Protections MCQ question is the important chapter for a Electrical Engineering and GATE students. e) Holes and electrons simultaneously, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-20, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-19, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-18, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-17, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-16, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-15, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-14, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-12, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-11, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-10, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-9, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-8, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-7, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-6, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-5, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-4, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-3, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-2, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-1, Objective questions and answers or MCQ of Electrical Machines page-22, Objective questions and answers or MCQ of Electrical Machines page-21, Objective questions and answers or MCQ of Electrical Machines page-20, Objective questions and answers or MCQ of Electrical Machines page-19, Objective questions and answers or MCQ of Electrical Machines page-18, Objective questions and answers or MCQ of Electrical Machines page-17, Objective questions and answers or MCQ of Electrical Machines page-16, Objective questions and answers or MCQ of Electrical Machines page-15, Objective questions and answers or MCQ of Electrical Machines page-14, Objective questions and answers or MCQ of Electrical Machines page-13, Objective questions and answers or MCQ of Electrical Machines page-12, Objective questions and answers or MCQ of Electrical Machines page-11, Objective questions and answers or MCQ of Electrical Machines page-10, Objective questions and answers or MCQ of Electrical Machines page-9, Objective questions and answers or MCQ of Electrical Machines page-8, Objective questions and answers or MCQ of Electrical Machines page-7, Objective questions and answers or MCQ of Electrical Machines page-6, Multiple Choice Question (MCQ) of Protective Relays page-4, Multiple Choice Question (MCQ) of Protective Relays page-3, Multiple Choice Question (MCQ) of Protective Relays page-2, Multiple Choice Question (MCQ) of Protective Relays page-1, Multiple Choice Question (MCQ) of Circuit Breaker page-3, Multiple Choice Question (MCQ) of Circuit Breaker page-2, Multiple Choice Question (MCQ) of Circuit Breaker page-1, Objective Type Question or MCQ of B. D. Both (b) and (c) Answer/ Hint Another popular example of instantaneous relay, is solenoid type relay. Explain the working of an IDMT relay? A. Buchholz relay is a device which is used for the protection of transformer from its internal faults, it is a gas based relay. j. These relays can be operated in less than 0.1 sec. Fault current in relay coil / Pick up current. Switchgear and Protection MCQ Objective questions & answers are available for a Electrical Engineering students to clear various technical interview, competitive examination, and another entrance exam. Decreased stability of the power system. c) Less than voltage element torque A circuit breaker is a device used to (a) limit the current. D. Mho type distance relay Plug Setting Multiplier and is defined as the ratio of fault current in the relay coil to the pick up value. Economics of Operation page-6, Objective Type Question or MCQ of B. Q. Instantaneous relay is. A. Circle passing through origin B. Circle with the centre at the origin C. Straight line passing through origin D. Straight line offset from the origin The conduction in JEFT is always by the When there is a current in fixed coil above the pick up value, the iron plunger is so attracted, it moves upward and makes NO contact closed. This test is Rated positive by 85% students preparing for GATE.This MCQ test is related to GATE syllabus, prepared by GATE teachers. (d) none of the above. a) Permanent moving magnet b) Induction cup c) Shaded pole d) Moving coil Ans: (a) 18. High-speed circuit breakers result in: Increased stability of power systems; Decreased stability of the power system; Correct answer: 2. Answer.2. d) All of these Ans: (c), a) Impedance type 13) A low pass filter is. 8. b) Sense the fault An instantaneous relay is one in which there is no time delay provided intentionally. Over current with extremely inverse characteristics . More specifically ideally there is no time required to operate the relay. 24. Electrical Engineering XYZ presents most important power system protection MCQs on important topics including fuses, relays, circuit breakers, machines, motors, transformers, alternator, grounding and protection schemes. c) 0.01 sec Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. (Supervisory Control and Data Acquisition), Programmable Logic Controllers (PLCs): Basics, Types & Applications, Diode: Definition, Symbol, and Types of Diodes, Thermistor: Definition, Uses & How They Work, Half Wave Rectifier Circuit Diagram & Working Principle, Lenz’s Law of Electromagnetic Induction: Definition & Formula. In a simple way electrical relay is shown in the figure above. An instantaneous relay is one in which there is no time delay provided intentionally. b) Greater than voltage element torque Also identifies the maximum value of an input quantity that will allow the relay to depart from pickup. b) Conductors Freon group of refrigerants are (A) Inflammable (B) … That means the moving parts of the relay take total 3 seconds to travel 100 % traveling distance. a) Semiconductors C. Ground wire. Say a relay has a time setting 0.1 and you have to calculate actual time of operation for PSM 10. Here balance of one horizontally placed beam is disturbed due to pick up current in the relay coil. a) UJT whenever any internal fault occurs in a transformer, the Buchholz relay at once gives a horn for some time, if the transformer is isolated from the circuit then it stop its sound itself otherwise it trips the circuit by its own tripping mechanism. This test is Rated positive by 92% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by … Enter your email below to receive FREE informative articles on Electrical & Electronics Engineering, SCADA System: What is it? d) Motors If the faults are severe it disconnects the transformer from the supply. a. C. Rms value. Multiple Choice Question (MCQ) of Electronics page-17:241. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are 23. A Relay is generally provided with control to adjust the time of operation of the Relay. b) Back up stop Multiple Choice Question (MCQ) of Electronics page-16:226. Economics of Operation page-4, Objective Type Question or MCQ of B. The slow developing faults called incipient faults in the transformer tank below oil level operate Buchholz relay which gives an alarm. Economics of Operation page-2, Objective Type Question or MCQ of B. 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