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Automatic control device for vacuum circuit breaker on electric distribution network

A technology of automatic control device and vacuum circuit breaker, applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problems of high cost of distribution network automation transformation, slow distribution network automation construction, equipment aging technical performance, etc., to achieve Reduced power outage time, simple structure, and strong operability

Inactive Publication Date: 2012-07-18
天津市海川电力技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The fault point is mainly found by means of line inspection. This method has problems such as low efficiency and difficulty in locating the fault point, which leads to long power outages on the line;
[0004] 2. Insufficient investment in the distribution network, aging equipment and poor technical performance, frequent power supply accidents, often caused by a fault in a branch line causing a large-scale power outage across the entire line;
[0005] 3. The cost of distribution network automation transformation is high, and the transformation of a line often requires millions or even tens of millions of investments, resulting in a very slow construction of distribution network automation

Method used

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  • Automatic control device for vacuum circuit breaker on electric distribution network
  • Automatic control device for vacuum circuit breaker on electric distribution network
  • Automatic control device for vacuum circuit breaker on electric distribution network

Examples

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Embodiment Construction

[0036] Below in conjunction with figure and preferred embodiment, to the specific implementation mode, structure, feature provided according to the present invention are described in detail as follows:

[0037] Such as figure 1 As shown, an automatic control device for a vacuum circuit breaker in a distribution network. The control circuit of the device is mainly composed of a signal acquisition and working power supply unit, a logic judgment unit, a man-machine interface and an actuator connection.

[0038] Such as figure 2 As shown, the composition of the signal acquisition unit circuit:

[0039] The signal acquisition circuit is mainly composed of two parts, one is the acquisition of the voltage signal, and the other is the acquisition of the current signal.

[0040]As described in the working power supply circuit, the voltage signal acquisition circuit reduces the high voltage on the distribution line to the mains voltage through two voltage transformers, and one of the...

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PUM

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Abstract

The invention relates to an automatic control device for a vacuum circuit breaker on an electric distribution network. The control circuit of the device mainly comprises a signal acquisition and working power supply unit, a logic judgment unit, a man-machine interface and an execution mechanism which are connected. The control device can be matched with the vacuum circuit breaker on the electric distribution network; when the electric distribution network fails, logic judgment can be performed according to acquired information and a failure area is quickly identified and isolated; meanwhile, the normal power supply of a non-failure area is recovered, power failure areas caused by the failure are greatly reduced and power failure time is shortened; and work amount is greatly reduced and the safety factor of field operation is improved. The control device has a simple structure, a reasonable design, safe and reliable performance and low cost, and is flexible and convenient to operate and convenient to install and maintain.

Description

technical field [0001] The invention relates to a device applied to power distribution lines, in particular to an automatic control device for a vacuum circuit breaker in a distribution network. Background technique [0002] At present, the distribution network is constantly developing with the scale of urban and rural construction, the rapid growth of power load and the reliability requirements of power supply. The structure of the distribution network is becoming more and more complex. As far as most power distribution networks are concerned, it generally takes several hours from the discovery and isolation of a single fault to the restoration of normal power supply in non-faulty areas, which seriously affects the normal life of residents and industrial and agricultural production. The following highlights point: [0003] 1. The fault point is mainly found by means of line inspection. This method has problems such as low efficiency and difficulty in locating the fault poi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02H7/28
CPCY04S10/20Y02E60/725Y02E60/00
Inventor 刘松彬王金龙易湘生黄蕾余闯梁晓龙
Owner 天津市海川电力技术有限公司
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