FIELD: electrical engineering. SUBSTANCE: device has N current transformers 1.1...1N, primary 2.1...2N and secondary 3.1...3N windings of current transformers, first and second capacitors 4, 5, stabilizer diode 5, relay 7, rectifying diodes 8, transistors 9.1...9N-1, and diodes 10.1...1ON-1. EFFECT: reduced number of connections with current transformers positioned in close proximity to power object construction. 1 dwg
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