I a fuse is a device ii a circuit breaker is

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Unformatted text preview: ........ device. (ii) A circuit breaker is a ........... device. (iii) An isolator is designed to open a circuit under ........... (iv) When a switch is opened, ........... is produced. (v) Under normal operating conditions, the contacts of the circuit breaker remain ........... (vi) Under fault conditions, ........... supplies information to the circuit breaker to open. (vii) If a fault occurs on the bus itself in a single bus-bar system, then there is complete ........... (viii) The sectionalised bus-bar system gives ........... fault current than that of unsectionalised bus-bar. (ix) For greater flexibility, ........... bus-bar system is used. (x) The outdoor type switchgear is generally used for voltages beyond ........... kV. 2. Pick up the correct words/figures from brackets and fill in the blanks. (i) A fuse performs ........... functions. (both detection and interruption, interruption) (ii) The circuit breaker performs ........... function. (detection, circuit interruption) (iii) For voltages beyond 66 kV, switchgear equipment is installed ........... (indoor,...
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