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Universal alternating current and direct current trip detection circuit used for vacuum circuit breaker

A technology that is universal for AC and DC, vacuum circuit breaker, applied in the direction of high-voltage air circuit breaker, circuit, electric switch, etc., can solve the problem of unavailability

Active Publication Date: 2014-03-05
戴顿(重庆)高压开关有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the control power supply is DC, it can directly bypass the energy storage auxiliary switch from the closing coil to the trip monitoring terminal of the microcomputer protection through the CZ-58 socket; Direct current, introduced into the AC control circuit and not available

Method used

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  • Universal alternating current and direct current trip detection circuit used for vacuum circuit breaker

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with drawings and embodiments.

[0014] The AC and DC general tripping detection circuit for vacuum circuit breakers includes a closing circuit and a blocking circuit. The closing circuit includes a plug port I connected to pin 14 of the aviation socket and connected to pin 4 of the aviation socket. The plug port II of the aviation socket pin 44 is connected to the plug port III of the microcomputer protection jump position monitoring device, the plug port I is connected to the jumper port a, and the jumper port b corresponding to the jumper port a is connected to the jumper port b respectively. The input end of the anti-jump electrical appliance KO is connected to the input end of the first circuit breaker auxiliary switch QF1, and the output end of the first circuit breaker auxiliary switch QF1 and the first output end of the first anti-jump relay KO1 are both connected to the jumper port k , the sec...

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PUM

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Abstract

The invention discloses a universal alternating current and direct current trip detection circuit used for a vacuum circuit breaker. The circuit comprises a closing circuit and a locking circuit. The closing circuit comprises an interconnecting port I, an interconnecting port II and a microcomputer protection trip monitoring device interconnecting port III, wherein the interconnecting port I is connected with an aviation socket pin 14, the interconnecting port II is connected with an aviation socket pin 4, and the microcomputer protection trip monitoring device interconnecting port III is connected with an aviation socket pin 44. As an improvement, a rectifier bridge is additionally arranged on the universal alternating current and direct current trip detection circuit on the basis of the prior art so that trip of the circuit breaker can still be detected by a microcomputer protection trip monitoring device on an alternating-current operation circuit in the closing circuit.

Description

technical field [0001] The invention relates to a position-jump detection circuit, in particular to a position-jump detection circuit for a vacuum circuit breaker. Background technique [0002] In the closing control circuit of the microcomputer relay protection, the trip of the 10KV vacuum circuit breaker needs to be monitored. The trip monitoring terminal of the microcomputer protection is directly connected to the closing circuit of the circuit breaker, but because the energy storage auxiliary switch is connected in series On the closing circuit of the circuit breaker, to detect the trip, the circuit breaker must be in the energy storage position, but the trip has nothing to do with whether the energy is stored, so to truly detect the trip of the circuit breaker, it is necessary to cross the energy storage The auxiliary switch is directly connected to the closing coil, including the normally closed point of the auxiliary switch of the circuit breaker. If the control powe...

Claims

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Application Information

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IPC IPC(8): H01H33/66
Inventor 李勤勇
Owner 戴顿(重庆)高压开关有限公司