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A method of self-switching of power safety backup

A technology for power safety and standby automatic switching, applied in emergency power supply arrangements, power network operating system integration, electrical components, etc., can solve the problems of single-line standby automatic switching, which is difficult to control, stabilize and coordinate, and achieve good stability and improve fault tolerance Effect

Active Publication Date: 2022-07-29
国网江苏省电力有限公司淮安供电分公司
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Problems solved by technology

[0004] Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides a method for self-switching of electric power safety equipment, which solves the problem of difficult control, stability and coordination in the existing single-line standby self-switching

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  • A method of self-switching of power safety backup
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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] The invention solves the problem of difficult control, stability and coordination in the existing single-line backup automatic switching pointed out in the background art, and discloses a power safety backup automatic switching method, including two wiring modes: safety wiring and segment wiring. The self-switching method for power safety backup disclosed in the present invention is realized based on a power safety system. The power safety system includes a CPU module, a relay module, an AC power supply module, a man-machine dialogue module, a signal acquisition module, a monitoring module and a voltage sensing module. The power supply module provides power supply for the system, the voltage sensing module senses the voltage, the signal acquisition module collec...

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Abstract

The invention relates to the technical field of self-switching of power supply, and discloses a self-switching method for power safety use, including two wiring modes: safety wiring and segmented wiring, which is realized based on a power safety system. The switching method includes the following steps: S1: safe wiring, when supplying power to the user, the power supply mode of double incoming line to single bus is adopted, that is, one working power supply is powered, and the other power supply is standby; S2: forward running, when running in the forward direction , the incoming line terminal voltage is greater than the set voltage, U1﹥U1y, U2﹥U2y, the two incoming line voltages are in a normal state; the self-switching method for electric safety backup for segmented wiring includes the following steps: S5: segmented wiring. The present invention greatly speeds up the speed of power supply restoration: if the backup power supply has power, the power supply can be restored within a few seconds; if manual power transmission is used after power failure, it will take at least a few minutes to be more stable and coordinated, and the segmented wiring can improve the fault tolerance rate of the power supply. Better stability.

Description

technical field [0001] The present invention relates to the technical field of backup self-switching, in particular to a self-switching method for power safety backup. Background technique [0002] With the increasing modernization of people's production and life in our country, people's demand for and dependence on electricity are also multiplying, and the requirements for power quality are becoming more stringent. , The goal of uninterrupted power supply is moving forward. Backup self-switching is the abbreviation of standby power supply automatically put into use device. Emergency lighting system is a backup and self-switching power supply system. Usually, relay contactor is used as the control of battery backup self-switching. When the main power fails , the control contacts of the relay contactor control system are automatically closed, and the battery is automatically connected to the emergency lighting circuit. [0003] The backup power supply automatic switching tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06H02J13/00H02H7/26
CPCH02J9/06H02J9/062H02J9/068H02J13/00002H02J13/00006H02H7/26Y02B90/20Y04S20/12Y04S20/248Y04S40/12
Inventor 王德全吴绍武阎国民张明朱瑾郝小强陈凯周朗
Owner 国网江苏省电力有限公司淮安供电分公司
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