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

Dual-bus disconnecting switch operation blocking electric circuit

A technology of isolation switch and electrical circuit, applied in the direction of air switch parts, etc., can solve the problems of misoperation of double bus isolation switch and imperfect design function.

Active Publication Date: 2016-10-12
SHANDONG IRON & STEEL CO LTD
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design and function of the existing locking device are not perfect, and misoperation accidents of double-bus isolating switches still occur frequently

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
  • Dual-bus disconnecting switch operation blocking electric circuit
  • Dual-bus disconnecting switch operation blocking electric circuit
  • Dual-bus disconnecting switch operation blocking electric circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0029] The embodiment of the present invention provides a double-bus isolating switch operation locking electrical circuit, which is set on the secondary side, so as to realize safe and reliable operation when closing and disconnecting the double-bus isolating switch, and prevent misoperation accidents occur.

[0030] see figure 2 , a double-bus isolating switch operation locking electrical c...

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 relates to a dual-bus disconnecting switch operation blocking electric circuit, which comprises a DC power supply, a first bus disconnecting switch auxiliary circuit and a second bus disconnecting switch auxiliary circuit in parallel connection, and a circuit breaker auxiliary normally-closed contact, wherein the first bus disconnecting switch auxiliary circuit comprises a first bus disconnecting switch electromagnetic lock button switch, a first bus disconnecting switch electromagnetic lock coil and a second bus disconnecting switch auxiliary normally-closed contact in serial connection; and the second bus disconnecting switch auxiliary circuit comprises a second bus disconnecting switch electromagnetic lock button switch, a second bus disconnecting switch electromagnetic lock coil and a first bus disconnecting switch auxiliary normally-closed contact in serial connection. By using the circuit of the invention, the circuit breaker is opened, after the first bus disconnecting switch performs closing operation, the second bus disconnecting switch can not perform the closing operation; after the circuit breaker is opened, the first or the second bus disconnecting switch can only perform closing or opening operation, and thus, maloperation accidents when the disconnecting switch is opened with load or one bus carries out closing or opening with load on the other bus can be avoided.

Description

technical field [0001] The invention relates to the technical field of isolating switch operation application, in particular to an electrical circuit for locking operation of a double-bus isolating switch. Background technique [0002] With the improvement of power supply safety and reliability requirements, in larger substations, the high-voltage switchgear of the power system is generally equipped with double busbar power supply. According to the production load and the operation of the power grid system, the busbar power supply switching operation and the operation mode of the power supply switching busbar are often adjusted through the isolation switch. [0003] see figure 1 , which is a circuit diagram of a typical double-bus isolating switch in the prior art corresponding to the feed-out line and the bus-bar contact primary system. One end of QS1 and II bus isolating switch QS2 are respectively connected to I bus and II bus, the other ends of the above two isolating ...

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
IPC IPC(8): H01H31/10
CPCH01H31/10
Inventor 李传东李传红赵兴永尹庆何敬国杨爱华朱根代永恒李倩孙维龙王敏付炳哲付兆升
Owner SHANDONG IRON & STEEL CO LTD
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