Phase voltage self-calibration method for three-phase overhead transmission lines based on shunt capacitors
An overhead transmission line, phase voltage technology, applied in the measurement of current/voltage, only voltage, capacitance measurement, etc., can solve the problems of difficult installation, high cost, complex insulation structure, etc., to achieve the effect of self-calibration
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereto.
[0025] see first figure 1 , figure 2 , image 3 , figure 1 is the A-phase device measurement equivalent circuit of the present invention, figure 2 It is B-phase device of the present invention, C-phase device measurement equivalent circuit, image 3 It is a schematic diagram of a parallel switched capacitor of the present invention, as can be seen from the figure, the present invention is based on a three-phase overhead transmission line phase voltage self-calibration method of a parallel capacitor, and the method includes the following steps:
[0026] 1) Three distributed voltage sensor measuring devices are respectively placed on the A, B, and C three-phases of the three-phase overhead transmission line at the same time, the output terminals of the described distr...
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