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Low-voltage bypass hot-line work control box

A live work and control box technology, applied in circuits, electrical switches, electrical components, etc., can solve the problems of complex low-voltage live work environment and high risk of live work, so as to ensure people's electricity consumption, improve power supply reliability, guarantee The effect of worker safety

Pending Publication Date: 2021-11-09
YICHANG POWER SUPPLY CO OF STATE GRID HUBEI ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The environment of low-voltage live work is relatively complicated, and the risk of live work is relatively high. A low-voltage bypass live work control box is now developed to improve the safety of low-voltage live work, reduce user power outages in the event of low-voltage transformation, user access, and fault handling, and improve power supply reliability. , increase the power supply, and improve the electricity happiness index of electricity customers

Method used

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  • Low-voltage bypass hot-line work control box
  • Low-voltage bypass hot-line work control box
  • Low-voltage bypass hot-line work control box

Examples

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] like figure 1 , figure 2 , image 3 As shown, the low-voltage bypass live work control box includes box body 1, knife switch 4, low-voltage circuit breaker (or called: switch) 8; knife switch 4, low-voltage circuit breaker (or called: circuit breaker) 8 are respectively installed in the box On the front side panel 9 of the body 1, the front side panel 9 is provided with the incoming line side terminals 10 of the A1 phase, B1 phase, C1 phase, and N1 phase of the incoming line side of the low-voltage circuit breaker 8 (for the corresponding four incoming line terminals 10). Line side terminal), the incoming line terminal 10 of A1 phase, B1 phase, C1 phase, N1 phase is located under the low-voltage circuit breaker 8, the A1 phase, B1 phase, C1 phase of the incoming line side of the low-voltage circuit breaker 8 , N1 phase lines are ...

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Abstract

The invention belongs to the technical field of power systems, and particularly relates to a low-voltage bypass hot-line work control box. The low-voltage bypass work control box comprises a box body, a disconnecting link and a low-voltage circuit breaker, and is characterized in that the low-voltage bypass work control box further comprises an alarm and three relays. Two coil terminals of the first relay are correspondingly connected with an A1-phase line on the wire inlet side of the disconnecting link and an A2-phase line on the wire outlet side of the disconnecting link respectively, and two coil terminals of the second relay are correspondingly connected with a B1-phase line on the wire inlet side of the disconnecting link and a B2-phase line on the wire outlet side of the disconnecting link respectively. Two coil terminals of the third relay are respectively and correspondingly connected with a C1-phase line at the wire inlet side of the disconnecting link and a C2-phase line at the wire outlet side of the disconnecting link; the auxiliary contacts of the three relays are connected in parallel and then are connected in series with the battery and the alarm. The control box can automatically give an alarm when wiring is wrong, short circuit can be prevented, electric arc injury caused by on-load on-off and connection and override tripping caused by a fault in a bypass power supply area can be prevented.

Description

technical field [0001] The invention belongs to the field of electric power technology, and in particular relates to a low-voltage bypass live work control box. Background technique [0002] The low-voltage power supply of the distribution network is the last link of safe and reliable power supply. The low-voltage transformation of the distribution network has a wide range of user access, and the faults of low-voltage lines are relatively low. More than 80% of the work orders of the State Grid 95598 system are low-voltage faults, of which Some of them cannot be repaired in time. In order to better reduce power outages for customers and improve the reliability of power supply, low-voltage live work has been widely promoted in power supply and consumption of distribution networks. The environment of low-voltage live work is relatively complicated, and the risk of live work is relatively high. A low-voltage bypass live work control box is now developed to improve the safety of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/46H02B1/52H02J9/06H02H3/00H01H9/26G08B21/24G08B3/10
CPCH02B1/46H02B1/52H02J9/06H02H3/00H01H9/26G08B21/24G08B3/10
Inventor 邓代国余涛崔琳王才永谭业涛黄琳榃刘洪涛李晨邹彦艾福洲梁伟
Owner YICHANG POWER SUPPLY CO OF STATE GRID HUBEI ELECTRIC POWER CO LTD
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