Method and device for electrically controlling high voltage circuit breaker to switch on or switch off

A high-voltage circuit breaker, electrical control technology, applied in the direction of circuit devices, electrical components, circuits, etc., can solve the problems that the drive cannot be removed, and the opening and closing coils are easy to burn, so as to eliminate hidden dangers of accidents, strong operability, and reliable guarantee sexual effect

Active Publication Date: 2010-10-20
TANGSHAN DUNSHI ELECTRIC CO LTD
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that if the auxiliary contact of the circuit breaker operates or there is a problem with the closing of the circuit breaker, the drive cannot be removed, and it is easy to burn the opening and closing coils.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for electrically controlling high voltage circuit breaker to switch on or switch off
  • Method and device for electrically controlling high voltage circuit breaker to switch on or switch off

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0017] In the embodiment, the opening and closing of the circuit breaker is controlled by a contact signal of the control system, the circuit breaker is closed when the control system sends a drive, and the circuit breaker is opened when the drive is removed; the drive issued by the control system does not directly control the circuit breaker Instead, it controls an intermediate relay, a power-on delay relay and a power-off delay relay, and generates a short-time pulse signal for closing and a short-time pulse signal for opening through the action of the three relays. Adjustable from 1 second to 60 seconds, it can not only ensure that the high-voltage circuit breaker opens when the DCS (distributed control system) fails, but also ensures that the opening and closing coils will not be charged for a long time and burn the coils.

[0018] The contr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of high-voltage power supply control and particularly relates to a method and a device for electrically controlling a high voltage circuit breaker to switch on or switch off. According to the technical scheme, the high-voltage circuit breaker is controlled by a contact signal of a control system to switch on or switch off, i.e., the control system drives to lead the circuit breaker to switch on, and the control system stops driving to lead the circuit breaker to switch off, particularly, the control system is not directly drive the coil of the circuit breaker for switching on or switching off, but control an intermediate relay, an on-delay relay and an off-delay relay, the three relays act to generate a switching-on short-time pulse signal and a switching-off short-time pulse signal with the time being adjustable from 1 to 60 seconds, thus ensuring that a distributed control system (DCS) can be switched off by the high-voltage circuit breaker in a failure and preventing the coil for switching on or switching off from being burnt up after being live for a long time. The invention has the characteristics of operation reliability, potential risk elimination and high operability and skillfully combines the advantages and overcomes the disadvantages in the prior art, thus ensuring that the DCS can be switched off by the high-voltage circuit breaker in the failure and preventing the coil for switching on or switching off from being burnt up after being live for a long time.

Description

Technical field: [0001] The invention relates to an electrical control method and device for opening and closing of a high-voltage circuit breaker, belonging to the technical field of high-voltage power supply control. Background technique: [0002] In the design process of the high-voltage cabinet, it is the main function of the high-voltage control cabinet to control the opening and closing of the high-voltage circuit breaker, and to supply power to the on-site high-voltage equipment and high-voltage motors. The opening and closing of the high-voltage circuit breaker is controlled by the opening and closing coil on the high-voltage circuit breaker. Finish. [0003] In order to realize the remote control of the closing coil and opening coil of the high-voltage circuit breaker, there are two methods in the prior art: 1. Remotely (automatic PLC control system) sends two pulse dry contact signals to the high-voltage cabinet, one of which is used for closing , another signal i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00H01H47/18
CPCY02B90/224Y04S20/14Y02B90/20
Inventor 董博渊李丽莉杨静兰
Owner TANGSHAN DUNSHI ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap