DGVCL Exam Paper (11-12-2011)
In the protection of transformers, harmonic restraint is used to guard against

Switching over voltages
Unbalanced protection
Lightning
Magnetizing inrush current

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Universal motor
Capacitor start capacitor run motor
Split phase motor
Capacitor start motor

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