Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power supply standby device for transformer substation achieved based on PLC

A substation and power supply technology, which is applied to circuit devices, emergency power supply arrangements, electrical components, etc., can solve problems such as low reliability, affecting the safe and stable operation of substations, and complicated installation and wiring, so as to ensure safe and stable operation and uninterrupted power supply , Overcome the effect of high failure rate

Inactive Publication Date: 2014-06-25
STATE GRID CORP OF CHINA +2
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, most substation power backup systems are relay-type devices. Due to problems in design and installation, or with the increase in operating years, individual substation power backup systems have problems since the beginning of substation operation. , most substation power backup systems fail after several years of substation operation, seriously affecting the safe and stable operation of substations
The relay-type substation power backup device uses many components, the installation and wiring are complicated, and the operation reliability is low
[0008] In the process of realizing the present invention, the inventor found that there are at least defects such as high failure rate, low reliability and poor security in the prior art

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
  • Power supply standby device for transformer substation achieved based on PLC
  • Power supply standby device for transformer substation achieved based on PLC
  • Power supply standby device for transformer substation achieved based on PLC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0032] As a general-purpose industrial control computer, PLC has been widely used in various industries such as steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, automobile, textile, transportation, culture and entertainment at home and abroad. However, according to relevant information, no devices and application examples based on PLC intelligence to realize the backup function of substation power supply have been found.

[0033] Aiming at the problems existing in the substation power backup input device, according to the embodiment of the present invention, such as Figure 2-Figure 6 As shown, a PLC-based backup swit...

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 discloses a power supply standby device for a transformer substation achieved based on a PLC. The power supply standby device for the transformer substation achieved based on the PLC comprises the PLC, a bus detection circuit, an incoming line power supply detection circuit, a breaker control circuit, a breaker position signal acquisition circuit, a breaker control intermediate relay circuit, a breaker on-off indicating circuit, a standby action reset circuit and a breaker circuit, wherein the bus detection circuit, the incoming line power supply detection circuit, the breaker control circuit, the breaker position signal acquisition circuit, the breaker control intermediate relay circuit, the breaker on-off indicating circuit and the standby action reset circuit are respectively connected with the PLC, and the breaker circuit is connected with the breaker control intermediate relay circuit. The power supply standby device for the transformer substation achieved based on the PLC can overcome the defects that the fault rate is high, reliability is low and safety is poor in the prior art, and can achieve the advantages of being low in fault rate, high in reliability and good in safety.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to a PLC-based power supply backup switching device for substations. Background technique [0002] Backup switch is the abbreviation of backup power automatic input, which is a safety automatic device designed to improve the reliability of power supply. The safe and reliable operation of the substation power supply is the premise and basis for the safe and stable operation of the substation. Substation station power backup system can automatically and quickly switch to the other station power supply in case of interruption of any one of the two station power supplies to ensure uninterrupted power supply for substation station loads. Therefore, the substation station power supply The backup system is very important to the safe and stable operation of the substation. [0003] The substation station power supply system usually adopts the single-bus section wiring mod...

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): H02J9/06
CPCY02B70/30Y04S20/20
Inventor 王少龙王强漆柏林王小举安贵元王佩霞胡云芳程华周泉
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com