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Introduction to Grounding switch

Dec 18, 2018

The grounding switch is a mechanical switching device used to intentionally ground the circuit.

The grounding switch, under abnormal conditions (such as short circuit), can carry the specified rated short-circuit current and the corresponding peak current within the specified time; however, under normal operating conditions, the load rated current is not required. Grounding switches and isolation switches are often used in combination with a single device. At this point, in addition to the main contact, the isolation switch also has a grounding switch to be used to ground one end of the isolation switch after the gate. The main contact and grounding switch usually implement the mechanical interlock in such a way that the grounding switch cannot be closed when the isolation switch is closed, and the main contact cannot be closed when the grounding switch is closed.