Applications and Functions
The Ground Switch Interlock Device 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.
Schematic diagram of assembly
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5XS.577.1001 |
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5XS.577.1002/5XS.577.1002.1 |
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5XS.577.1003 (Double door)/ 5XS.577.1003.1 (Single door) |
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5XS.577.1004 (Double door)/ 5XS.577.1004.1 (Single door) |
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Factory
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No.1083 Zhongshan East Road, Yinzhou District, Ningbo City, Zhejiang Province, China
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