| 摘要 |
FIELD: electrical engineering; remote-control devices for high-voltage circuit breakers. SUBSTANCE: device that incorporates additional functions of arc control in control-contact circuit and automatic backup of power supply for emergency opening of circuit breaker in case of supply voltage failure, execution of additional functions being provided by available capacitor, has circuit-breaker opening coil, circuit-breaker interlocking contact, circuit-breaker control contact, capacitor, charge resistor, check-up relay coil, relay breaking contact, and also first, second, and third diodes. EFFECT: enhanced reliability of device due to executing additional functions without increasing its size and cost. 1 cl, 1 dwg
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