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发明公开
CN108152725A 一种电气开关脱扣性能试验装置 有权

一种电气开关脱扣性能试验装置
摘要：
本发明公开了一种电气开关脱扣性能试验装置，包括：主控电路、调压器、多路降压电路、输出变压器和多路电流互感器；调压器的输入端用于接收外部交流电，调压器的输出端与多路降压电路的多路输入端相连；多路降压电路的多路输出端与输出变压器的输入端相连，输出变压器的输出端用于输出试验电源；输出变压器的输出端与多路电流互感器的输入端相连，多路电流互感器的多路输出分别与主动电路的输入端相连；主控电路的输出端与调压器的控制端相连；多路降压电路和多路电流互感器选择一路导通。该装置利用多路多档的降压电路以及对输出回路电流采样，实现输出高精度电流。
摘要（英）：

The invention discloses an electrical switch tripping performance test device. The device comprises a main control circuit, a voltage regulator, a multi-channel voltage reduction circuit, an output transformer and a multi-channel current transformer. The input end of the voltage regulator is used for receiving the external alternating current. The output end of the voltage regulator is connected with the multi-channel input end of the multi-channel voltage reduction circuit. The multi-channel output end of the multi-channel voltage reduction circuit is connected with the input end of the output transformer. The output end of the output transformer is used for outputting a test power supply. The output end of the output transformer is connected with the input end of the multi-channel current transformer. The multi-channel outputs of the multi-channel current transformer are respectively connected with the input end of the main control circuit. The output end of the main control circuitis connected with the control end of the voltage regulator. The multi-channel voltage reduction circuit and the multi-channel current transformer are connected in a one-way breakover mode. According to the device, the high-precision current is outputted through adopting the multi-channel and multi-gear type voltage reduction circuit and sampling the current of an output loop.

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