81. Series reactors should have
82. Insulation resistance of high voltage circuit breakers is more than
83. An efficient and a well designed protective relaying should have
84. Distance relays are generally
85. For which of the following protection from negative sequence currents is provided ?
86. To protect most of the electrical equipment handling low power, the types of relays used are
87. A fuse in a motor circuit provides protection against
88. Wave trap is used to trap waves of
89. SF6 gas
90. Air blast circuit breakers for 400 kV power system are designed to operate in
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