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A low-voltage distribution system

A low-voltage power distribution system and commercial power technology, applied in electrical components, circuit devices, emergency power supply arrangements, etc., can solve problems such as user loss and large fault range, reduce the fault range, avoid user losses, and eliminate instantaneous short-circuits. glitch effect

Pending Publication Date: 2018-12-21
SHENZHEN KEXIN COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-voltage power distribution system, which aims to solve the problem that the exi

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] figure 2 A schematic diagram of a low-voltage power distribution system provided by an embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0028] The low-voltage power distribution system is powered by the first mains and the second mains. The low-voltage power distribution system includes the first incoming line switch QF1, the second incoming line switch QF2, the bus tie switch QF3, the first busbar module 100, the second busbar module The busbar mo...

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Abstract

The invention belongs to the technical field of low-voltage distribution and provides a low-voltage distribution system. In the invention, the low-voltage distribution system comprises a first incoming line switch, a second incoming line switch, a bus-coupling switch, a first bus-bar module, a second bus-bar module and an intelligent acquisition control module. When the intelligent acquisition control module detects that the first incoming line switch or the second incoming line switch is open, that is, when the instantaneous short-circuit fault occurs to the first bus-bar module or the secondbus-bar module, the intelligent acquisition control module controls the first incoming line switch or the second incoming line switch to close after delaying the preset time, so as to eliminate the instantaneous short-circuit fault. Therefore, the low-voltage distribution system can automatically recover the instantaneous short-circuit fault, reduce the fault range and avoid the loss of users.

Description

technical field [0001] The invention belongs to the technical field of low-voltage power distribution, and in particular relates to a low-voltage power distribution system. Background technique [0002] The existing low-voltage power distribution system is a structure of two incoming lines and one bus tie, such as figure 1 As shown, the low-voltage power distribution system is powered by mains 1 and 2, and QF1 and QF2 are incoming line switches. The low-voltage power distribution system also includes two sections of busbars, namely section I busbar and section II busbar, and two sections of busbar The busbars are connected through the bus tie switch (referred to as the bus tie switch) QF3, in which the I-section busbar is located between QF1 and QF3, the II-section busbar is located between QF2 and QF3, and QF11, QF12, ... QF1n are the I-section busbars Feeder switch, QF21, QF22, ... QF2n are the feeder switch of section II busbar. [0003] When the low-voltage power distr...

Claims

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Application Information

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IPC IPC(8): H02H7/22H02H3/06H02J9/04
CPCH02H3/066H02H7/22H02J9/04
Inventor 陈波波黄维尧陈登志罗华平欧阳星涛
Owner SHENZHEN KEXIN COMM TECH