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Remote gas density relay and monitoring system

A technology of gas density and relay, applied in the direction of instruments, circuits, electric switches, etc., can solve the problems of potential safety hazards, hazards, flashovers, etc.

Pending Publication Date: 2019-12-06
SHANGHAI ZHUODIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) When the temperature drops, too much moisture may form dew, which will significantly reduce the insulation strength of the surface of the insulating part, or even flashover, causing serious damage
In addition, if the on-site inspection of the inspectors is not performed in a standardized manner, there are still potential safety hazards

Method used

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  • Remote gas density relay and monitoring system
  • Remote gas density relay and monitoring system
  • Remote gas density relay and monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] See attached figure 1 , The present invention discloses a remote gas density relay, including: gas density relay 1, pressure sensor 2, temperature sensor 3, valve 4, pressure adjustment mechanism 5, online verification contact signal sampling unit 6, intelligent processor 7, Multi-way connector 9; one end of valve 4 is sealed to SF 6 On the electrical equipment 8, the other end of the valve 4 is connected to the gas density relay 1; the pressure sensor 2 is connected to the gas density relay 1 on the gas path; the pressure regulating mechanism 5 is connected to the gas density relay 1; online verification contact signal sampling The unit 6 is connected to the density relay 1 and the intelligent processor 7 respectively; the pressure sensor 2 and the temperature sensor 3 are connected to the intelligent processor 7; the valve 4 is connected to the intelligent processor 7; the pressure regulating mechanism 5 is connected to the intelligent processor 7 connection.

[0100] Se...

Embodiment 2

[0115] See attached image 3 , The present invention discloses a remote gas density relay, including: gas density relay 1, pressure sensor 2, temperature sensor 3, solenoid valve 4, pressure adjustment mechanism 5, online verification contact signal sampling unit 6, intelligent processor 7 , Multi-way connector 9, supplemental gas interface 10, self-sealing valve 11. One end of the self-sealing valve 11 is hermetically connected to SF 6 On the electrical equipment 8, the other end of the self-sealing valve 11 is connected to the valve 4; one end of the valve 4 is hermetically connected to the self-sealing valve 11, and the other end of the valve 4 is connected to the multi-way joint 9. The gas density relay 1 is installed on the multi-way connector 9; the pressure sensor 2 and the temperature sensor 3 are installed on the gas density relay 1, and the pressure sensor 2 is connected to the gas density relay 1 on the gas path; the pressure regulating mechanism 5 is installed on the...

Embodiment 3

[0117] See attached Figure 4 , The present invention discloses a remote gas density relay, including: mixed gas density relay 1, pressure sensor 2, temperature sensor 3, electric valve 4, pressure regulating mechanism 5, online verification contact signal sampling unit 6, intelligent processor 7. Multi-way connector 9, air supplement interface 10, valve 12. One end of the valve 12 is hermetically connected to the mixed gas electrical equipment 8, the other end of the valve 12 is connected to the valve 4; one end of the valve 4 is hermetically connected to the valve 12, and the other end of the valve 4 is connected to the multi-way joint 9. The gas density relay 1 is installed in the multi-way connector 9; the pressure sensor 2, the temperature sensor 3, the online verification contact signal sampling unit 6 and the intelligent processor 7 are set together. The pressure sensor 2 is connected to the gas density relay 1 on the gas path through the multi-way connector 9; the press...

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PUM

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Abstract

The invention discloses a remote gas density relay and a monitoring system. The remote gas density relay comprises a communication module, a pressure sensor, a pressure sensor fixing seat, a mechanical part and an electronic part, wherein the mechanical part comprises a mechanical part shell, and a pressure detector, a temperature compensation element, a temperature sensor, a plurality of signal generators and a signal adjusting mechanism which are arranged in the mechanical part shell; the electronic part comprises an electronic part shell, and an intelligent processor and a power supply which are arranged in the electronic part shell; the pressure sensor is fixed on the pressure sensor fixing seat, and the pressure sensor communicates with the pressure detector; the mechanical part shelland the electronic part shell are mutually independent or separated; and the intelligent processor is respectively connected to the temperature sensor, the pressure sensor and the communication module. The remote gas density relay and the monitoring system are used for completing on-line calibration of the gas density relay while monitoring the gas density of electrical equipment with gas insulation or arc extinguishing, the efficiency is improved, the operation and maintenance cost is reduced, and the safe operation of a power grid is guaranteed.

Description

Technical field [0001] The invention belongs to the technical field of gas density relays, and more specifically relates to a remote gas density relay and monitoring system. Background technique [0002] Currently, SF 6 (Sulfur hexafluoride) electrical equipment has been widely used in the power sector, industrial and mining enterprises, and has promoted the rapid development of the power industry. In recent years, with the rapid economic development, the capacity of my country’s power system has expanded dramatically. 6 The amount of electrical equipment is increasing. SF 6 The role of gas in high-voltage electrical equipment is arc extinguishing and insulation. SF in high-voltage electrical equipment 6 If the density of the gas is reduced and the water content exceeds the standard, it will seriously affect the SF 6 Safe operation of high voltage electrical equipment: 1) SF 6 Reducing the gas density to a certain level will result in the loss of insulation and arc extinguishing ...

Claims

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Application Information

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IPC IPC(8): G01D21/02H01H35/32H01H35/26
CPCG01D21/02H01H35/32H01H35/26
Inventor 苏丽芳
Owner SHANGHAI ZHUODIAN ELECTRIC