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

Open circuit preventing device and method for charged breaking of current circuit

A current loop and phase current technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., to achieve the effect of realizing electrical work, reducing unplanned downtime accidents, and ensuring operation safety

Pending Publication Date: 2019-04-05
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After searching, there is no complete and mature technology and device at home and abroad that can realize online replacement without power failure in case of failure of relay protection, metering and other loads

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
  • Open circuit preventing device and method for charged breaking of current circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Implementation example figure 1 As shown, the current circuit live breaking and open circuit prevention device of the present invention includes a three-phase current transformer circuit 1, a current transformer secondary circuit terminal block 2 and a secondary circuit load 3. The current transformer secondary circuit terminal block 2 includes The line-side terminal block and the line-side terminal block. The incoming-side terminal block is connected to the three-phase current transformer circuit 1, and the outgoing-side terminal block is connected to the secondary circuit load 3. The device also includes a terminal block connection Slider 21, three-phase dynamic closing switch 4, three-phase fuse 5, A-phase ammeter 6, B-phase ammeter 7, C-phase ammeter 8, three-phase short-circuit grounding jack 9 and test lead 10, the terminal block is connected to slip The block 21 is provided in the current transformer secondary circuit terminal block 2 and connects or disconnects t...

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 an open circuit preventing device and method for charged breaking of current circuit. The incoming line side terminal strip and the outgoing side terminal strip of the device are respectively connected with a three-phase current transformer circuit and a secondary circuit load. The terminal strip connection sliders are arranged on the incoming line side terminal strip and the outgoing side terminal strip. The input end of the three-phase moving blade is connected to the incoming line side terminal strip via a test wire, and the output end is connected to the input end of each phase ammeter via a three-phase fuse. The output end of each phase ammeter is connected to the grounding grid via a three-phase short-circuit grounding jack. The method tests whether the closing is normal by opening and closing the three-phase moving blade. The terminal strip connection sliders are loosened, and the connection of the incoming line side terminal strip and the outgoing side terminal strip is broken. The terminal strip connection sliders slides to the outgoing side terminal strip and locked in place. The secondary circuit load is de-energized, and is replaced or processed.The device and the method realize the non-blackout replacement or processing under the failure condition of the secondary circuit load on the important transmission and distribution equipment, reducethe unplanned shutdown accident, and ensure the safety of the maintenance personnel.

Description

Technical field [0001] The invention relates to an anti-opening device and method for the live breaking of a current loop. Background technique [0002] If the secondary circuit load of important power generation, transmission, power distribution equipment such as relay protection and metering in the power system fails and needs to be replaced, the non-stop processing will easily cause the current circuit open circuit accident, which directly threatens the personal and equipment safety of maintenance personnel; if Temporary power outages will cause greater losses, and troubleshooting often faces a dilemma. [0003] With the widespread application of automation, integration, and intelligent technology in the power system, relay protection, metering and other devices are becoming more and more complex, with more and more functions, and higher and higher precision. They not only participate in signal transmission, communication transfer, but also Even if it participates in the contro...

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): G01R31/02
CPCG01R31/50
Inventor 巢平源王石顾裴剑孟经纬
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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