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Electromechanically-integrated gas density relay and system

A gas density and relay technology, applied in the field of electric power, can solve the problems of inaccurate measurement, difficult to meet precise measurement, precise control and other problems

Pending Publication Date: 2019-11-08
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing mechanical density relays generally have the problem of inaccurate measurement, which is difficult to meet the requirements of accurate measurement and precise control

Method used

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  • Electromechanically-integrated gas density relay and system
  • Electromechanically-integrated gas density relay and system
  • Electromechanically-integrated gas density relay and system

Examples

Experimental program
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Effect test

Embodiment 1

[0104] figure 1 ,with figure 2 It is a schematic structural diagram of a high-performance mechatronics gas density relay used in high-voltage electrical equipment according to an embodiment of the present invention. Such as figure 1 , figure 2 As shown, a mechatronics gas density relay includes a mechanical part 1 and an electronic part 2 relatively independent of the mechanical part; the mechanical part 1 and the electronic part 2 are integrated designs. The mechanical part 1 includes a pressure detector 103, a temperature compensation element 104, and several signal generators 109. The electronic part 2 includes several sensors (pressure sensor 201 and temperature sensor 3) and a microprocessor 202. The microprocessor 202 is respectively connected with several sensors (pressure sensor 201, temperature sensor 3). Collect pressure and temperature signals through several sensors (pressure sensor 201, temperature sensor 3), according to the gas pressure-temperature character...

Embodiment 2

[0134] Figure 4 It is a gas density relay system composed of a high-performance mechatronics gas density relay according to the second embodiment of the present invention. Such as Figure 4 As shown, multiple high-voltage electrical equipment and multiple gas density relays equipped with sulfur hexafluoride gas chambers are connected to the background monitoring terminal through a hub and an IEC61850 protocol converter in sequence. Among them, each gas density relay is respectively arranged on the high-voltage electrical equipment of the corresponding sulfur hexafluoride gas chamber.

[0135] In this embodiment, the background monitoring terminal PC communicates with multiple hubs HUB (HUB1, HUB2,... HUBm) through the hub HUB0. Each hub HUB is connected to a group of gas density relays. For example, hub HUB1 is connected to gas density relays Z11, Z12,...Z1n, and hub HUB2 is connected to gas density relays Z21, Z22,...Z2n,..., hub HUBm is connected to gas density relay Zm1 , Zm...

Embodiment 3

[0138] Figure 5 It is a gas density relay system composed of a high-performance mechatronics gas density relay according to the third embodiment of the present invention. Compared with the second embodiment, this embodiment adds a network switch Gateway, a comprehensive application server Server, and a protocol converter / online monitoring intelligent unit ProC. In this embodiment, the background monitoring terminal PC is connected to two integrated application servers Server1 and Server2 through the network switch Gateway, and the two integrated application servers Server1 and Server2 are connected to multiple protocol converters / online monitoring intelligence through the station control layer A network and B network Unit ProC (ProC1, ProC2,...ProCn) communication, protocol converter / online monitoring intelligent unit ProC communicates with multiple hub HUBs (HUB1, HUB2,...HUBm) through R5485 network. Each hub HUB is connected to a group of gas density relays. For example, hu...

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Abstract

The invention discloses an electromechanically-integrated gas density relay and system. The gas density relay comprises a mechanical part and an electronic part. The mechanical part comprises a pressure detector, a temperature compensation element and a signal generator. The electronic part comprises a pressure sensor, a temperature sensor, a microprocessor and a first electronic signal contact. The first electronic signal contact is connected with the signal generator in series or in parallel, or is connected to a control loop corresponding to the signal generator in series or in parallel. The microprocessor is connected with the pressure sensor and the temperature sensor to obtain a pressure value and a temperature value and process the pressure value and the temperature value to obtaina gas density value; the microprocessor is further connected with the electronic signal contact, and when the monitored gas density value is smaller than or larger than a set density value, the microprocessor receives a first notice contact signal output when the first electronic signal contact acts. By means of the gas density relay, the gas density value of electrical equipment can be accuratelymonitored to find gas leakage in time, and thus the safe operation of a power grid is guaranteed.

Description

Technical field [0001] The invention relates to the field of electric power technology, in particular to a mechatronics gas density relay and system applied to high-voltage or medium-voltage electrical equipment. 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 The decrease of gas density will seriously affect SF 6 Safe operation of high voltage electrical equipment: SF 6 Decreasing the gas density to a certain extent will result in a reduction or loss of insulation and arc extinguishing performanc...

Claims

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Application Information

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IPC IPC(8): G01N9/26G01N9/36G01M3/02G01M3/32G01D21/02G05B19/042H01H35/26
CPCG01N9/266G01N9/36G01M3/02G01M3/3209G01M3/3272G01D21/02G05B19/042H01H35/26G05B2219/25252G05B2219/25033
Inventor 郭正操黄小泵曾伟郝彩侠王乐乐叶小伟
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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