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Remote transmission gas density relay system and verification method thereof

A gas density and relay technology, applied in the field of electric power, can solve the problems of potential safety hazards, hazards, and the reduction of insulation strength on the surface of insulating parts.

Pending Publication Date: 2019-11-22
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) When the temperature drops, too much water may form condensation water, which will significantly reduce the insulation strength of the surface of the insulation, or even flashover, causing serious damage
In addition, if the on-site verification of the inspectors is not standardized, there are still potential safety hazards

Method used

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  • Remote transmission gas density relay system and verification method thereof
  • Remote transmission gas density relay system and verification method thereof
  • Remote transmission gas density relay system and verification method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0245] figure 1 It is a schematic diagram of the structure of a gas density relay. Such as figure 1 As shown, the gas density relay 1 includes: a housing 101, and a base 102, an end seat 108, a pressure detector 103, a temperature compensating element 104, several signal generators 109, and a movement 105 arranged in the housing 101 , pointer 106, dial 107, pressure sensor 2, temperature sensor 3, temperature adjustment mechanism 5, online verification contact signal sampling unit 6, and intelligent processor 71. The valve 4 and the pressure regulating mechanism 11 are arranged on the joint 1010 outside the housing 101 (or on the multi-way joint outside the housing 101). One end of the pressure detector 103 is fixed on the base 102 and communicated with it, the other end of the pressure detector 103 is connected to one end of the temperature compensation element 104 through the end seat 108, the The other end of the temperature compensating element 104 is provided with a cr...

Embodiment 2

[0274] Such as Figure 4 As shown, a gas density monitoring device provided by Embodiment 2 of the present invention includes: a gas density relay 1 (the gas density relay 1 also mainly includes: a housing, and a base disposed in the housing, a pressure detector 103, temperature compensation element 104, movement 105, pointer 106, dial, end base 108, several signal generators 109 and electrical equipment connection joint 1010), pressure sensor 2, temperature sensor 3, temperature adjustment mechanism 5, contact signal sampling unit 6 , an intelligent processor 7, a heating device 1108, and a second heat preservation piece 1109. The temperature adjustment mechanism 5 is arranged in the housing of the gas density relay 1, and the temperature sensor 3 is also arranged in the housing of the density relay 1. The pressure sensor 2 , the online verification contact signal sampling unit 6 and the intelligent processor 7 are arranged on the density relay 1 . Specifically, the pressur...

Embodiment 3

[0280] Such as Figure 5 As shown, a gas density monitoring device provided by Embodiment 3 of the present invention includes: a gas density relay 1, a pressure sensor 2, a temperature sensor 3, a valve 4, a temperature adjustment mechanism 5, an online calibration contact signal sampling unit 6, an intelligent A processor 7, a multi-way joint 9, an air supply interface 10, and a pressure regulating mechanism 11. One end of the valve 4 is sealingly connected to the electrical equipment 8, and the other end of the valve 4 is connected with the multi-way joint 9. The gas density relay 1 is installed on the multi-way joint 9; the pressure sensor 2 and the temperature sensor 3 are arranged on the gas density relay 1, and the pressure sensor 2 is connected with the gas density relay 1 on the gas path; the temperature adjustment mechanism 5 is set On the density relay 1 ; the temperature adjustment mechanism 5 is mainly composed of a heating element 501 controlled by an intelligent...

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Abstract

The invention discloses a remote transmission gas density relay system and a verification method thereof, and the system comprises a background monitoring terminal which achieves the remote communication with at least one gas density monitoring device through communication equipment, and completes the online monitoring and verification of a gas density relay; a gas density monitoring device whichcomprises the gas density relay, a gas density detection sensor, a temperature adjusting mechanism, an online check contact signal sampling unit and a circuit control part; a background monitoring terminal or a monitoring device which controls an intelligent processor to control the temperature adjusting mechanism, and further adjusts the temperature rise and fall of a temperature compensation element of the gas density relay so as to enable the gas density relay to perform a contact action; the intelligent processor detects a contact signal action value and / or a return value according to thegas density value when the contact action is performed, remote verification of the gas density relay can be completed without the need for maintainers to go to the site, maintenance is not needed, andbenefits and reliable and safe operation of a power grid are greatly improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a remote gas density relay system applied to high-voltage and medium-voltage electrical equipment and a calibration method thereof. Background technique [0002] The gas density relay is generally used to monitor and control the density of insulating gas in high-voltage electrical equipment. It is equipped with a contact signal control circuit inside. The gas circuit of the gas density relay is connected to the gas chamber of the high-voltage electrical equipment. When a gas leak is detected, The contact action of the gas density relay generates a contact signal, and the contact signal control circuit sends an alarm or locks according to the contact signal, so as to realize the safe operation protection of electrical equipment. [0003] At present, SF6 (sulfur hexafluoride) electrical equipment has been widely used in the power sector and industrial and mining enterprises...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/26H01H35/28G01N9/26G01K15/00G01L27/00
CPCH01H35/26H01H35/28G01N9/266G01K15/005G01L27/005
Inventor 金海勇常敏曾伟郭正操吴叶弘王乐乐
Owner SHANGHAI ROYE ELECTRICAL CO LTD