Intelligent SF6 density multi-gas-circuit detecting method of sealed combined electric appliance
A combined electrical and intelligent detection technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of other air chamber pollution, increase the leakage fault of combined electrical appliances, increase product cost and other problems, achieve simple maintenance, convenient application, Avoid wasteful effects
Inactive Publication Date: 2013-07-24
STATE GRID CORP OF CHINA +1
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Problems solved by technology
At present, in order to save costs, most manufacturers of combined electrical appliances share a density relay with multiple gas chambers through the air pipe. When any gas chamber fails, it will inevitably cause pollution to other gas chambers; however, if each Installing a density relay separately in an independent air chamber will inevitably lead to an increase in product cost and increase the probability of air leakage failure of the combined electrical appliance
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[0021] A method for intelligent detection of SF6 density and multiple gas paths in a closed combination electrical appliance, comprising the following steps:
[0022] Step 1: Connect each air chamber of the closed combined electrical appliance with the SF6 density multi-air path intelligent detection device.
[0023] Such as figure 1 As shown, the SF6 density multi-gas circuit intelligent detection device includes a density relay 1, a gas confluence device 4, an intelligent control module 3, multiple spring mechanisms 5 and multiple gas circuit valves 6, and the gas outlet channel 2 of the density relay and the gas confluence device Installed together, the intelligent control module is connected to the gas circuit valve through the spring mechanism respectively, the intelligent control module and the spring mechanism are installed inside the gas confluence device, the gas circuit valve is set at the bottom of the gas confluence device, and each independent gas circuit of the c...
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The invention relates to an intelligent SF6 density multi-gas-circuit detecting method of a sealed combined electric appliance. The method is mainly and technically characterized by comprising the following steps of: step 1, connecting gas chambers of the sealed combined electric appliance with an intelligent SF6 density multi-gas-circuit detecting device; and step 2, respectively detecting the density of the gas chambers through an intelligent control module according to a certain time period. According to the invention, the design is reasonable, one density relay is used for detecting the density of a plurality of gas circuits, the application is convenient, the maintenance is simple, the investment is saved, and the defect that any gas chamber generates failures to pollute other gas chambers when the plurality of gas chambers are communicated and share one density relay is eliminated.
Description
technical field [0001] The invention belongs to the technical field of SF6 closed combined electrical appliances, in particular to an intelligent detection method for closed combined electrical SF6 density and multiple gas paths. Background technique [0002] SF6 gas has good insulation performance and arc extinguishing ability, and it is an ideal insulation and arc extinguishing medium under normal working conditions. Therefore, SF6 gas is widely used in high-voltage power equipment. The working pressure and moisture content of SF6 gas have a direct impact on the safety and reliability of power equipment. If the leakage of SF6 gas leads to a decrease in density or excessive moisture content in the gas, there will be potential safety hazards in high-voltage power equipment, and even lead to accidents. Therefore, it is of great significance to detect the gas density of closed combination electrical appliances. At present, in order to save costs, most manufacturers of combine...
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Inventor 张黎明刘宝成项添春唐庆华满玉岩郗晓光
Owner STATE GRID CORP OF CHINA