Synchronous motor full voltage start-up circuit

Posted on Mar 28, 2007

Circuit shown in Figure 3-186. Figure, os for the isolation switch; QF vacuum circuit breakers; YR line for the circuit breaker coil; YA circuit breaker closing coil; SAi dashe

Synchronous motor full voltage start-up circuit
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d box for excitation device (not shown) ready waiting to run switches; KAs of excitation device excitation protection relay; KAs stop and the total loss of voltage protection relay contacts; SBi as the start button, SBz the stop button.

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