FIELD: electricity.
SUBSTANCE: it is suggested to introduce an additional switch, providing a four-stage switching process during device switching-on and switching-off, and transfer a filter compensating device from an unregulated mode into a regulated mode.
EFFECT: reducing overvoltage during switching-on, excluding repeated breakdowns in the main switch when the device is switched off, increasing operational reliability of the filter compensating device and its operating life.
1 dwg
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