Out put voltage of alternators must be different

Out put voltage of alternators must be different

Voltage of incoming alternator must be more

Incoming voltage of alternator must be less

Frequencies of machines are different

Frequencies of machines are different

Speed of alternators are same

Out put voltage of alternators are same

To start the alternator

To stop the alternator

For synchronising of alternators

To change the excitation

Synchroscope

Synchroscope

Phase sequence meter

Centre zero ammeter

To check the voltages

To check the voltages

Indicate the difference in voltage and phase sequence

To indicate the exact time for synchronising