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Monitoring system and method for SF6 gas in GIS combined electric appliance

A monitoring system and combined electrical appliance technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of low monitoring efficiency and inaccurate monitoring results.

Inactive Publication Date: 2020-04-10
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a monitoring system and method for SF6 gas in a GIS combined electrical appliance, so as to solve the problems in the prior art that the monitoring results of the SF6 gas inside the GIS combined electrical appliance are not accurate enough and the monitoring efficiency is low

Method used

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  • Monitoring system and method for SF6 gas in GIS combined electric appliance
  • Monitoring system and method for SF6 gas in GIS combined electric appliance
  • Monitoring system and method for SF6 gas in GIS combined electric appliance

Examples

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Embodiment 1

[0051] The monitoring system of SF6 gas in the GIS combined electrical appliance of this embodiment is used to monitor the pressure and temperature of the SF6 gas in the GIS combined electrical appliance. The staff can obtain monitoring data in time, which is also conducive to data statistics, so as to obtain the operating status of GIS combined electrical appliances and find faults in time.

[0052] The structure of the monitoring system for SF6 gas in a GIS combined electrical appliance provided by the embodiment of the application can be found in figure 1 , figure 1 It is a schematic structural diagram of a monitoring system for SF6 gas in a GIS combined electrical appliance provided in the embodiment of the present application. Depend on figure 1 It can be seen that the monitoring system of SF6 gas in the GIS combined electrical appliance in this embodiment mainly includes: a plurality of collection terminals and a control terminal, and the control terminals are respecti...

Embodiment 2

[0069] exist Figure 1-Figure 5 On the basis of the illustrated embodiment see Figure 6 , Figure 6 It is a schematic flowchart of a method for monitoring SF6 gas in a GIS combined electrical appliance provided in the embodiment of the present application. Depend on Figure 6 It can be seen that the monitoring method in this embodiment mainly includes the following processes:

[0070] S1: Collect monitoring data. Among them, the monitoring data include: SF6 gas pressure, temperature and voltage of the monitoring system.

[0071] The monitoring method in this embodiment is mainly applied to the monitoring system described above. According to step S1, firstly, the monitoring data is collected through the collection module at the collection end, specifically, the temperature and pressure of the SF6 gas and the voltage value of the monitoring system are collected through the collection unit in the collection module.

[0072] S2: Preliminarily process the monitoring data and t...

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Abstract

The invention discloses a monitoring system and a monitoring method for an SF6 gas in a GIS combined electric appliance. The monitoring system is in communication connection with a background management system. The monitoring system comprises a plurality of acquisition terminals and a control terminal, wherein an arbitrary acquisition terminal is installed at an inflation and deflation port of a GIS combined electric appliance gas chamber, the control terminal is in communication connection with the plurality of acquisition terminals, each acquisition terminal comprises an acquisition module and a first power supply, and the control terminal comprises a control module, a communication module and a second power supply. The monitoring method comprises the steps of: acquiring monitoring data;performing preliminary processing on the monitoring data and transmitting the processed monitoring data to a control module; storing the preliminarily processed monitoring data, comparing the preliminarily processed monitoring data with a correspondingly set threshold value, and judging whether the monitoring data is qualified or not according to a comparison result; and transmitting the preliminarily processed monitoring data and a judgment result of the monitoring data to a background management system. According to the monitoring system and the monitoring method, the monitoring efficiencyand the precision of the monitoring result can be effectively improved, so that the reliability of the whole system is improved.

Description

technical field [0001] This application relates to the technical field of performance monitoring of substation GIS (Gas Insulated Substation, Gas Insulated Substation, Gas Insulated Substation) combined electrical appliances, in particular to a monitoring system and method for SF6 (sulfur hexafluoride) gas in GIS combined electrical appliances. Background technique [0002] GIS combined electrical appliances are common and important electrical equipment in substations, also known as SF6 fully enclosed combined electrical appliances. The insulation and arc extinguishing ability of GIS combined electrical appliances is largely determined by the density and purity of SF6 gas, such as: the gas filling pressure of SF6 gas in the circuit breaker chamber is required to be 0.5MPa at 20°C, and the gas filling pressure of SF6 gas in other gas chambers It is 0.4MPa at 20°C, and the annual air leakage rate is ≤1%. Therefore, how to monitor the temperature and pressure of SF6 gas inside...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01L19/00G05B19/042
CPCG01D21/02G01L19/0092G05B19/042
Inventor 范岩马庆法丁昊蒋超鲍新陈显达
Owner STATE GRID SHANDONG ELECTRIC POWER
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