21. Arc in a circuit behaves as
22. A fuse is connected
23. The reflection co-efficient at the open circuited end of a transmission line.
24. Protection by fuses is generally not used beyond
25. The ground wire should not be smaller than No ______ copper.
26. Directional relays are based on flow of
27. Admittance relay is _______ relay.
28. The voltage appearing across the contacts after opening of the circuit breaker is called______voltage.
29. The material used for fuse must have
30. For cost and safety, the outdoor substations are installed for voltages above
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