Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part4 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.Series capacitors are used to |
| compensate for line inductive reactance |
| compensate for line capacitive reactance |
| improve line voltage |
| none of the above |
12.Overfluxing protection is recommended for |
| distribution transformer |
| generator transformer of the power plant |
| auto-transformer of the power plant |
| station transformer of the power plant |
13.Air blast circuit breakers for 400 kV power system are designed to operate in |
| 100 micro-second |
| 50 milli-second |
| 0.5 sec |
| 0.1 sec |
14.If the fault occurs near the impedance relay, the VII ratio will be |
| constant for all distances |
| lower than that of if fault occurs away from the relay |
| higher than that of if fault occurs away from the relay |
| none of the above |
15.The inductive interference between power and communication line can be minimized by |
| transposition of the power line |
| transposition of the communication line |
| both (a) and (b) |
| increasing the distance between the conductors |
More Switchgear Protections QUESTIONS AND ANSWERS available in next pages
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