The role of auxiliary switches in high-voltage or medium-voltage circuit breakers, disconnectors and other power equipment
Auxiliary switches are part of the main switch and are configured in high-voltage or medium-voltage circuit breakers, disconnectors and other power equipment to serve the functions of opening, closing, signal control and interlock protection in the secondary control circuit. They can also be used as combination switches and transfer switches.
The auxiliary switch is not an independent switch. In the control system, it serves as a carrier for the realization of auxiliary functions such as disconnection, connection, and interlocking.
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