Device for preventing grounding switch indicator lamp from switching in advance and switch cabinet

Abstract

The invention provides a device for preventing a grounding switch indicator lamp from switching in advance and a switch cabinet and relates to the technical field of power control and protection equipment. The device for preventing a grounding switch indicator lamp from switching in advance comprises a transmission mechanism and an auxiliary switch connected with the transmission mechanism, the transmission mechanism is used for transmitting the power of the operation mechanism to the auxiliary switch to delay the switching of the auxiliary contact normally open and normally closed inside theauxiliary switch, and the auxiliary contact normally open and normally closed is used for switching the illumination of the status indicator lamp. The device provided by the invention can make the auxiliary switch not operate immediately after the operation mechanism is operated, thus avoiding the corresponding indicator lamp from lighting or extinguishing in advance in the closing or opening process of the grounding switch, and ensuring the safety of the operator and the equipment.

Description

technical field [0001] The invention relates to the technical field of power control and protection equipment, in particular to a device and a switchgear for switching an indicator light of an anti-grounding switch in advance. Background technique [0002] According to the design requirements of the switchgear, primary components with different positions and states, such as circuit breakers and grounding switches, should have status indicators to identify which state they are in, such as the test position and working position of the circuit breaker, the opening and closing state, storage Energy status; grounding switch opening and closing status, etc. [0003] At present, domestic manufacturers all use the fast opening and closing form for the grounding switch. The operating mechanism angle for operating the grounding switch is 90°, and the virtual travel of the grounding switch from opening to closing is up to 70° (that is, turning the grounding switch to operate After the...

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Problems solved by technology

[0003] At present, domestic manufacturers all use the fast opening and closing form for the grounding switch. The operating mechanism angle for operating the grounding switch is 90°, and the virtual travel of the grounding switch from opening to closing is up to 70° (that is, turning the grounding switch to operate After the handle of the mechanism reaches 70°, the grounding switch moves the cutter head to start to act), and the status indicator switch only uses a single FK33 auxiliary switch. Before the grounding switch is completely closed, the closing indicator light is on, and The brake indicator light is off, which may cause misjudgment, especially for the structure of electric operation, which may eventually cause unsafe effects on operators and equipment

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