The contactor is controlled by a synchronous welding RKSM type controller, which output unipolar symmetrical pulses with a frequency that is twice the frequency of the network, with the parameters:
current 1.5 ± 0.1 A;
voltage 20 ± 5 V (on the resistance of 6.2 ± 5% Ohm);
duration 200 ± 100 μs (at a level not lower than 15 V).
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