Automatic control device for vacuum circuit breaker on electric distribution network

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...

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

Images