Three-pin reed switch type double-circuit trip node gas relay

A reed switch and three-pin technology, applied in the field of relays, can solve the problems of reduced insulation strength of gas relay terminals, hidden dangers of reliable, safe and stable operation of the power grid, and inability to distinguish transformer tripping, etc., so as to achieve a simple and reasonable structure and prevent false alarms. or trip signal, the effect of increasing reliability

Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
View PDF12 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reduction of the insulation strength of the terminals of the gas relay can easily cause the main transformer to be tripped by mistake due to the short connection of the lead wire of the reed switch, which brings great hidden dangers to the reliable, safe and stable operation of the power grid
[0005] The existing gas rela

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
  • Three-pin reed switch type double-circuit trip node gas relay
  • Three-pin reed switch type double-circuit trip node gas relay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The invention is a three-pin dry reed switch type two-way tripping node gas relay, such as figure 1 As shown, it includes a housing 1, an upper cover, an upper float 3, a lower float 6, a baffle 7, a reed switch and a magnet. A heavy gas protection device and a light gas protection device are installed in the casing 1 of the gas relay. The oil flow pipe 9 in the casing 1 is filled with transformer oil 2 , and the casing 1 is provided with a side inlet 10 .

[0025] The heavy gas protection device includes a frame 20 installed in the gas relay housing 1 and a lower float 6 installed on one side of the frame 20. The lower float 6 is connected with the frame 20 through a float connecting rod and can rotate up and down. The lower float 6 A magnet b17 is installed on the float connecting rod, and the magnet b17 is located above the side of the reed switch b18, and the rotation of the lower float 6 will drive the magnet b17 to rotate together. On the other side of the frame...

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 the technical field of a relay, and in particular to a three-pin reed switch type double-circuit trip node gas relay which is applicable for a gas relay on electrical apparatuses such as an operating transformer or a tapping switch. The gas relay comprises a reed switch and a floater, a heavy gas protection device and a slight gas protection device are arranged in a shell of the gas relay, transformer oil is arranged in an oil pipeline in the shell, and a side inlet is arranged on the shell. On the basis of the conventional gas relay, a contact type reed switch with three metal reeds is used as a signal output node, an alarm or trip signal sent by mistake due to poor insulation outside pins can be effectively prevented, outside interference is reduced, protection reliability is enhanced, and a fault due to oil leakage of the transformer or a fault inside the transformer can be rapidly distinguished. The three-pin reed switch type double-circuit trip node gas relay has the characteristics of high insulativity of a secondary circuit, and safe and reliable use; the three-pin reed switch type double-circuit trip node gas relay is capable of avoiding false operation of the contact, is simple and reasonable in structure, obvious in effect, and is beneficial to promotion and application.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to a three-pin reed switch type double-circuit tripping node gas relay, which is suitable for the gas relay on power equipment such as transformers or tap switches in operation. Background technique [0002] Gas relay, also known as gas relay, is a relay that operates by using the gas generated when the transformer internal fault occurs. Its structure is simple and its sensitivity is high, especially when there is an inter-turn short circuit in the place where the number of turns of the transformer winding is small, the internal fault circuit current is very large, which may cause local severe overheating, but the current change reflected on the external lead wire is small, which means Sometimes even highly sensitive differential protection cannot guarantee reliable operation, but the gas relay can respond sensitively to this type of fault. Therefore, the gas relay is still one of t...

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): H01H36/02
Inventor 李冠华金鑫李爽朱义东韩洪刚包蕊杨鹤唐佳能丁爱华王汀
Owner STATE GRID CORP OF CHINA
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