You are attempting to parallel two AC generators and the synchroscope pointer stops at a position other than 0°. What would happen if you close the circuit breaker at this position?

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Accepted Answer

a hazardous condition will be created by the cross current between the machines

Answer

the incoming machine will accept all of the load

Answer

the incoming machine will trip out on low voltage release

Answer

a hazardous condition will be created by the incoming machine being at a higher frequency than the bus

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