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Switchgear Protections - Interview Questions and Answers

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76. A fuse is connected
A. in series with circuit
B. in parallel with circuit
C. either in series or in parallel with circuit
D. none of the above
Explanation:
77. By which of the following methods major portion of the heat generated in a H.R.C. fuse is dissipated ?
A. Radiation
B. Convection
C. Conduction
D. All of the above
Explanation:
78. Thermal overload relays are used to protect the motor against over current due to
A. short-circuits
B. heavy loads
C. grounds
D. all of the above
Explanation:
79. Series capacitors are used to
A. compensate for line inductive reactance
B. compensate for line capacitive reactance
C. improve line voltage
D. none of the above
Explanation:
80. Overfluxing protection is recommended for
A. distribution transformer
B. generator transformer of the power plant
C. auto-transformer of the power plant
D. station transformer of the power plant
Explanation:
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