Ground Switch Mechanism for Switchgear

Applications and Functions

The Ground Switch Mechanism for Switchgear is used in substations, power plants, and industrial electrical systems to enhance safety during the operation and maintenance of high-voltage switchgear. Its primary function is to prevent the accidental or unauthorized operation of a ground switch while high-voltage equipment is still energized, thus safeguarding personnel and equipment from electrical hazards.

In substations, the interlock device ensures that a ground switch can only be closed after confirming that other relevant switches (such as circuit breakers or isolators) are in the correct position, ensuring proper isolation of the electrical system. This is especially critical when switching or grounding circuit breakers, transformers, or isolators to prevent dangerous situations where a grounded circuit might still carry electrical current. In power plants, the interlock device serves a similar purpose by preventing operators from grounding high-voltage equipment while it is still connected to the power grid, thus reducing the risk of electrical shock during maintenance work.

The Ground Switch Interlock Device typically includes mechanical interlocks or electronic controls that prevent the ground switch from being operated unless safe conditions are met. This could include ensuring that the disconnect switch is open or the equipment is de-energized. Some systems may also include indicators or alarms that notify operators when conditions are safe to operate the ground switch.

By ensuring that the grounding of equipment only occurs under proper conditions, the interlock device helps streamline maintenance processes, minimize human error, and enhance operational safety. It is an essential safety feature for maintaining the reliability and security of electrical systems, especially in high-voltage environments.

Schematic diagram of assemb

5XS.363.010
5XS.363.010.1
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5XS.363.010.6D
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Note:

sequence 22 link assembly turn arm has two sizes: conventional 60 center distance, if the customer needs 80 center distance, please explain when ordering.

Factory

Certificate