Loop resistor detection system and method based on supercapacitor set
A technology of supercapacitor and loop resistance, which is applied in the direction of measuring resistance/reactance/impedance, instruments, measuring devices, etc., and can solve problems such as the inability to accurately detect the state of loop resistance
Active Publication Date: 2018-01-19
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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Problems solved by technology
[0007] The purpose of the present invention is to solve the defect that the loop resistance state cannot be accurately detected under the condition of high current and heat, and to design a loop resistance detection system and method based on a supercapacitor bank
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Embodiment 1
[0044] Please refer to figure 1 , figure 1 It is a schematic diagram of a loop resistance detection system based on a supercapacitor bank.
[0045] A loop resistance detection system based on a supercapacitor bank, including an acquisition control module, a computer, a regulated power supply, a voltage controllable constant current charger, an isolation control module, an isolation measurement module, a current shunt, a thyristor and a supercapacitor bank ; wherein the computer is connected to the input end of the acquisition control module; the output end of the acquisition control module is connected to the thyristor and the voltage controllable constant current charger through the isolation control module, and the two ends of the current shunt and the loop resistance are measured respectively through the isolation measurement module The voltage at both ends and the two ends of the super capacitor bank is collected; the silicon controlled rectifier and the loop resistance, ...
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The invention discloses a loop resistor detection system and method based on a supercapacitor set. The system comprises a collection control module, a computer, a voltage stabilizing power source, a voltage controllable constant current charger, an isolation control module, an isolation measuring module, a current shunt, a silicon controlled rectifier and the supercapacitor set, wherein the computer is connected with the input end of the collection control module; the output end of the collection control module is connected with the silicon controlled rectifier and the voltage controllable constant current charger through the isolation control module, and the voltages at the two ends of the current shunt, the two ends of a loop resistor and the two ends of the supercapacitor set are collected through the isolation measuring module; the silicon controlled rectifier, the loop resistor, the supercapacitor set, the voltage shunt and the voltage controllable constant current charger form aseries connection loop, the voltage controllable constant current charger is connected to the 220V alternating current network, and the voltage stabilizing source supplies power to the collection control module and the isolation module; the collection control module controls the current shunt through the isolation module.
Description
technical field [0001] The invention relates to the field of loop resistance detection of medium and high voltage equipment, and more specifically, to a loop resistance detection system and method based on a supercapacitor bank. Background technique [0002] There will be contact resistance when electrical equipment contacts other components, and the size of contact resistance will directly affect the interception capacity in the circuit. Therefore, it is a very important test for electrical equipment to test the circuit resistance of the equipment. [0003] The conductive circuit of the conductive connector is composed of the contact resistance between the dynamic and static contacts or the connector and the resistance of other connecting lines in the circuit, in which the resistance value of the contact resistance is much greater than the resistance value of the connecting wire, so the resistance of the conductive circuit is mainly Determined by contact resistance. Contac...
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IPC IPC(8): G01R27/14
Inventor 李国伟罗容波吴沃生章涛王俊波曾庆辉李慧唐琪黄静张伟忠何胜红陈志平洪贞贤金向朝谢志杨
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID