Method for rapidly judging wiring error of power distribution transformer monitoring terminal
A technology to monitor terminal, wiring errors
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[0029] The method for quickly judging the wiring error of the distribution transformer monitoring terminal in this embodiment is: first perform voltage loop correctness detection based on the three-phase AC voltage and current data collected by the distribution transformer monitoring terminal, and then perform current loop after confirming that the voltage loop is correct Correctness testing.
[0030] In specific implementation, the correctness of the voltage loop is tested as follows:
[0031] For the amplitude and phase angle of the three-phase AC voltage collected by the distribution transformer monitoring terminal, the judgment is made according to the following steps:
[0032] 1. If the voltage of a phase of A phase, B phase and C phase is zero, it is judged that the phase is missing;
[0033] 2. If the A phase voltage is within the qualified range of 220V±10%, the other two items are higher than the A phase voltage Times, it is judged as the reverse polarity of the phase A volt...
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