On-line temperature measurement method and device for cable joint of high-voltage plant
A technology for cable joints and high-voltage equipment, which is applied in the direction of measuring devices, electric devices, and thermometers using electric/magnetic elements that are directly sensitive to heat. It is difficult to install and implement problems, so as to improve the working reliability, solve the problem of online temperature measurement, and achieve the effect of high working reliability
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[0016] As shown in Fig. 1, the online temperature measurement method of the high-voltage equipment cable joint of the present invention,
[0017] (1) Attach the temperature sensor to the surface of the metal conductor, and the current induction coil with an insulating surface layer is set on the metal conductor, and at the same time, the power circuit, microprocessor and wireless transmitter are installed on the metal conductor through the circuit board, The temperature sensor, current sensing coil and circuit board are all sealed within the insulator.
[0018] (2) Write the digital identification codes of the three output terminals of the tested cable connector into the memories of the respective microprocessors respectively.
[0019] (3) Three metal conductors encapsulated by insulating materials are respectively installed at the output end of the three-phase cable of the high-voltage equipment. When the metal conductors flow a current greater than 15A, the current induced b...
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