In a single bus-bar system there will be complete shut down when____________?
Correct answer: A. fault occurs on the bus itself
- A. fault occurs on the bus itself
- B. fault occurs on neutral line
- C. two or more faults occur simultaneously
- D. fault occurs with respect to earthing
Explanation
In a single-bus arrangement, every circuit is connected to the same bus, so a bus fault can disconnect or shut down all connected circuits. A fault on one feeder does not normally require a complete bus shutdown.
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