Fig. 27, Operation page 21 – Toshiba HV6AS User Manual

Page 25

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OPERATION

Page 21

Fig. 27 Electrical Operation Flow Chart for MU
and ML Type Breakers

Circuit Breaker Open

Control Power Applied

Motor Begins Operating

Closing Springs Begin Charging

Closing Springs Charged

Motor Stops

Closing Signal Given

Motor Begins Operating

Circuit Breaker Closes

Auxiliary Relay Closes

Anti-Pumping Circuit Completed

Opening Signal Given

Trip Coil Energized

Circuit Breaker Opens

- - - - Spring Status Indicator Changes to Yellow

- - - - Standby for Close Operation

- - - - Spring Status Indicator Changes to White
and On-Off Status Changes to ON

- - - - Next Close Operation is Not Possible
Unless Close Signal is Canceled

- - - - On-Off Status Indicator Changes to OFF

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