Electrostatics Quiz Questions; Kirchhoff's Laws Test Questions; Electrical Materials Quiz Questions; Electrical Heating; Electrical Losses Quiz Questions; Electrical Measuring Devices Quiz ; Wiring Systems Quiz Questions; Inductance Quiz Questions Answers; Capacitance Quiz Questions; Electrical Power Generation: Battery Quiz Questions 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. What Do You Mean By Zone Of Protection? Define Power Factor. 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. A protection system engineer is planning to provide the complete protection, he can achieve this by _____ a) three phase fault relays and two earth fault relays b) … D. High initial cost. The components or various sections of power system may operate at different voltage and power levels. 2. An example of the power system is a grid that supplies power to the other system. Q: What is dielectric test of a circuit breaker? This set of Advanced Power Systems Questions and Answers focuses on “Switchgear and Protection – 2”. Answer : The protection is organized to provide a ring of security around each and every element of power system. Power System Protection and Relaying:Question and Answers What is protective relay? Page 1 C. Surge problem. Underground system is more flexible than overhead system. It consists of overvoltage withstand test of power frequency lightning and impulse voltages.Testa are done for both internal and external insulation with switch in both open and closed conditions. It will be convenient for analysis of power system if the voltage, power, current and impedance ratings of components of power system are expressed with a common value called base value. P.E. The relays are compact, self-contained devices, which respond to abnormal conditions. Review the questions again. There are no computations required. It is used to improve the power factor of the system. Refer to the Fire Protection Handbook to find answers. Q.5 The main drawback of ovehead system over underground syste is-A. POWER SYSTEM LAB VIVA Questions :-1. Higher charging current. 1. An over excited synchronous motor running on no load is known as synchronous condenser. The 2) What do you mean by the zone of protection? Question 1. What is dielectric test of a circuit breaker? Go back to question ↑ Answer #10 Answer on first question: Functions of a protective relay: The protective relaying senses the abnormal conditions as a part of the power system and gives an alarm or isolate that part from the healthy system. Using the power utility system or network as the source. Answer all questions that you know first. The cosine of angle between voltage and the current in an AC circuit is known as power factor. Practicing All Power Systems - Electrical Engineering Questions and Answers in online helps you to improve your ability to attend the real time GATE, IES and BSNL JTO Exams. Exam will cover an AM exam (4 hours) followed by a PM exam (4 hours) and that the exam will be 80 questions long, 40 questions in the morning and 40 questions in the afternoon. The protection is provided in the system to protect each and every element of the power system. 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