Ultrahigh voltage DC lightning arrester leakage current online detection method by using cloud technology
A UHV DC and leakage current technology, applied in the direction of measuring current/voltage, instruments, measuring electricity, etc., can solve the problems of inability to accurately detect the leakage current of UHV DC surge arresters, and achieve simple structure, strong self-recovery and self-adaptive capabilities , strong practical effect
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Embodiment 1
[0038] refer to figure 1. A system for online detection of leakage circuits of UHV DC arresters using cloud technology, comprising a detection device 1 arranged near the DC arrester, a data transmission device for transmitting the leakage current detection results obtained by the detection device 1, A data receiving device, a central monitoring device and a mobile terminal 3 . The data sending device is a public network signal transmitting unit 5 , and the data receiving device is a public network signal receiving unit 6 . The public network signal transmitting unit 5 and the public network signal receiving unit 6 can realize data transmission through the mobile public network (GSM network or GPRS network). The transmitting unit 5 is preferably a communication module of a GSM network or a GPRS network. The central monitoring device includes a background processor 40 and a storage device 41, the input end of the background processor 40 is connected to the data receiving devi...
Embodiment 2
[0062] refer to Image 6 . This embodiment is substantially the same as the implementation of Embodiment 1, the difference is that: the data sending device includes a radio frequency signal transmitting unit 50, a frequency modulation forwarding unit 51 and a dual-mode communication unit 52 connected in sequence, and the data receiving The device is the public network signal receiving unit 6 connected to the output end of the dual-mode communication unit 52 .
[0063] The above setting can make this embodiment not only transmit the circuit detection value to the central monitoring device in the range covered by the public network, but also pass the radio frequency signal transmitting unit and the frequency modulation forwarding unit in the area without public network signals. In cooperation, the lightning strike information is first sent to a dual-mode communication unit set within the coverage of the public network, and then transmitted to the central monitoring device, whic...
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