Distribution network automatic separating fault switch controller

A switch controller, fault isolation technology, applied in electrical components, emergency protection circuit devices, etc., can solve the problems of inconvenient operation, insufficient precision, and inability to adjust the starting value, so as to achieve no maintenance, complete functions, and avoid one-time investment. Effect

Inactive Publication Date: 2008-06-11
易深
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of using the controller to cooperate with the switching action to realize the automation of the distribution network has just started in China, but there are still problems such as insufficient precision due to the use of electromagnetic devices, and the start-up value cannot be adjusted.
And the electromagnetic automatic device also needs regular annual school test, which also brings inconvenience to the operation work

Method used

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  • Distribution network automatic separating fault switch controller
  • Distribution network automatic separating fault switch controller
  • Distribution network automatic separating fault switch controller

Examples

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Embodiment Construction

[0026] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0027] For example, two 10KV / 220V voltage transformers are connected on both sides of the 10KV distribution line switch, respectively connected to AB phase and BC phase. The grid automatically isolates the working power of the fault switch controller, and also serves as the input of the voltage signal. As shown in Figure 1, the secondary voltages V1 and V2 of the two voltage transformers are rectified by D1 and D2 and filtered by capacitor C1 to become a DC 300V, which is used as the motor D, the switching coil H and closing coil T of the switch and the switching power supply AC-DC Dual power supply with this unit. In addition, the switch auxiliary contact A in Figure 1 is a contact that is consistent with the switch position: that is, when the switch...

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Abstract

A switch controller for distribution network automatic separating fault. It includes power circuit, sampling circuit, input and output control circuit and initial setting circuit, it also includes programmable logic array. Due to adopt programmable logic array, electronic component and circuit, it is simple structure, small volume, non storage cell, it can adapt multi switch, it cooperates with distribution network, if the networks have failure , the controller can automatic diagnose identify the failure, separate the failure and restore power supply of non failure section.

Description

Technical field [0001] The invention belongs to a device for power distribution lines, in particular to a distribution network automatic isolation fault switch controller. Background technique [0002] On a line in the urban distribution network, there are many switches that divide the entire distribution line into several sections, and there are many branch lines besides the main line, and some branch lines are divided into several sections. In short, a distribution line is composed of several sections of lines connected by switches. In addition, most of the distribution lines and distribution lines are connected by switches. However, in the current power distribution network, it generally takes 5-30 hours from the discovery and isolation of unit faults to the normal power transmission of non-faulty parts. Known products in use have many disadvantages such as that the contact switch cannot reverse power supply, if an uninterruptible power supply is used, the volume will i...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02H7/26
Inventor易深
Owner易深