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A fast switching device for factory power supply that provides the intelligent correction function of circuit breaker opening and closing time

A factory-used power supply and fast switching technology, which is applied in the direction of circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problems of power supply switching failure and large closing inrush current, so as to improve service life, reduce closing inrush current, The effect of precise control

Active Publication Date: 2020-04-10
JIANGSU WISCOM TECHNOLOGY CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems, to provide a factory power supply quick switching device with an intelligent correction function of the opening and closing time of the circuit breaker, so as to solve the problem of power supply switching failure or excessive closing impulse current caused by the decrease of the opening and closing speed of the circuit breaker The problem

Method used

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  • A fast switching device for factory power supply that provides the intelligent correction function of circuit breaker opening and closing time

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. figure 1 It is the electrical principle diagram and wiring schematic diagram of the present invention.

[0033] The factory bus 3 is the working section bus corresponding to the factory power fast switching device 0, the working power inlet 4 and the backup power inlet 5 supply power to the factory bus 3 in the form of mutual backup; 1DL 1 is the working power inlet 4 circuit breaker, 2DL 2 is the circuit breaker for backup power incoming line 5;

[0034] 1DL 1's opening command signal 6, closing command signal 7, jumping auxiliary contact 8, and closing auxiliary contact 9 are all connected to the factory power quick switching device through hard wiring;

[0035] The opening command signal 10, closing command signal 11, jumping auxiliary contact 12, and closing auxiliary contact 13 of 2DL 2 are also connected to the factory power quick switching device through hard wir...

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Abstract

An intelligent power supply switching device for providing intelligent correction function of circuit breaker closing time comprises an auxiliary power supply rapid switching device, wherein the auxiliary power supply rapid switching device monitors the split instruction signal of the incoming circuit breaker. The auxiliary power supply rapid switching device is connected with the position auxiliary contact of the incoming line breaker and the device could monitor whether the time of opening and the closing the incoming circuit breaker is within a reasonable range. If not, it will send an alarm signal. The device will automatically collect the time of opening and closing the line breaker and correct the preset value of opening and closing time of the circuit breaker through intelligent algorithm. And, the device will intelligently correct the closing time of the circuit breaker so as to improve the success rate of power switching, reduce the closing current and improve the service life of the equipment.

Description

technical field [0001] The invention belongs to the technical field of power system safety automation, realizes the intelligent monitoring of the circuit breaker circuit and the automatic correction of opening and closing time, and improves the success rate of fast switching of factory power supply. Background technique [0002] In power plants and industrial enterprises, in order to solve the problem of power supply reliability, a factory power fast switching device is generally used to quickly switch to the backup power supply when the working power supply fails, so as to ensure the continuity of power supply for the equipment. [0003] In the fast switching logic of factory power supply, whether it is fast switching mode or simultaneous switching mode, it needs to cooperate with the accurate opening and closing time of the incoming circuit breaker, and the opening and closing time of the circuit breaker is generally set as a fixed value In installations, this time is prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06
CPCH02J9/061H02J9/068
Inventor 仲伟李杰
Owner JIANGSU WISCOM TECHNOLOGY CO LTD
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