Performance on-line monitoring device for power distribution switch cabinet lightning arrester and monitoring method thereof
A technology of power distribution switch and monitoring device, applied in the direction of measuring device, instrument, measuring electricity, etc., can solve the problems of untimely monitoring, degradation of insulation characteristics, inaccurate judgment of the working state of arrester, etc., to achieve efficient online monitoring and ensure safe operation. Effect
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[0032] Below in conjunction with accompanying drawing of description, the present invention will be further described.
[0033] like figure 1 As shown, an online monitoring device for arrester performance in power distribution switchgear, including a microprocessor circuit, a temperature signal conditioning circuit, a current signal conditioning circuit, and a cabinet temperature signal conditioning circuit connected to the microprocessor circuit in one-way communication , a display circuit, a keyboard circuit and a power supply circuit, a communication interface circuit connected to the microprocessor circuit in two-way communication, and a temperature sensor, a current sensor and a temperature sensor in the cabinet.
[0034] The temperature sensor is connected to the microprocessor circuit by one-way communication through the temperature signal conditioning circuit, the current sensor is connected to the microprocessor circuit by one-way communication on the current signal c...
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