FIELD: electrical engineering.
SUBSTANCE: device relates to electrical engineering, namely to a device for automatic control of voltage in a network by switching secondary magnetizing windings of a multi-winding booster transformer. In the device for automatic voltage control in the network, the first non-contact voltage relay has an optical relay with a normally closed contact, and the second non-contact voltage relay is additionally equipped with an optical relay with a normally closed contact.
EFFECT: faster operation.
1 cl, 1 dwg
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