On-load voltage regulation tapping switch tester

Abstract

The invention relates to an on-load voltage regulation tapping switch tester, which comprises a PC (personal computer), an ARM processor, a programmable gate array unit, a signal conditioning and sampling circuit, a sampling data memory, a high-voltage switch control circuit, a current sensor and a displacement sensor. The PC is connected with the ARM processor through an Ethernet interface. The ARM processor is connected with the programmable gate array unit through a network interface. The programmable gate array unit is connected with the signal conditioning and sampling circuit and the high-voltage switch control circuit. The programmable gate array unit is connected with the sampling data memory through a photoelectric coupler. The signal conditioning and sampling circuit is respectively connected with the current sensor, the displacement sensor and a high-voltage switch. The high-voltage switch control circuit, the current sensor and the displacement sensor are all connected with the high-voltage switch. The on-load voltage regulation tapping switch tester of the invention is simple and reasonable in structural design. The detection precision and the real-time performance for the mechanical properties of the high-voltage switch are enhanced. Moreover, the circuit is high in reliability and low in cost.

Description

technical field [0001] The invention relates to a switch tester, in particular to an on-load tap changer tester. Background technique [0002] The high-voltage switch is an important control and protection device in the electrical equipment of power plants and substations. When the equipment and lines fail, it can quickly remove the fault, ensure the normal operation of the fault-free part, and play a role in operation protection. The high-voltage switch relies on mechanical parts to complete the opening and closing action. In order to ensure the safe operation of the high-voltage switch, the mechanical characteristics of its mechanical parts must be tested. In the existing technology, additional displays, buttons, etc. are set to complete the human-computer interaction mode. This processing method Not only is it complicated, but the accuracy is not high, and the detection has a certain delay. Contents of the invention [0003] In view of the above problems, the present i...

AI Technical Summary

Problems solved by technology

The high-voltage switch relies on mechanical parts to complete the opening and closing action. In order to ensure the safe operation of the high-voltage switch, the mechanical characteristics of its mechanical parts must be tested. In the existing technology, additional displays, buttons, etc. are set to complete the human-computer interaction mode. This processing method Not only is it complex, but the accuracy is not high, and there is a certain delay in detection

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