1.what is bus cuplour and main funtions.
2.what is main function of alternator.
3.how many types of dg oils.
Answer Posted / somnath chakraborty
A bus coupler is generally a circuit breaker which helps in connecting one bus to another thereby enabling uninterrupted supply in the event of fault in one bus.Switch over from one bus to another can be done either in auto or manual mode.
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