FIELD: electricity.
SUBSTANCE: invention relates to shunt resistance circuit breaker with control element and electrical circuit. The electrical circuit includes the main branch line (1) and resistible branch line (2) being connected in parallel with the main branch line (1). Each branch line contains contact (11, 21) and vacuum circuit breaker (12, 22). Resistible branch line (2) includes also a resistor (30). The main contact of rotary selector is always actuated before resistible contact (21). In accordance with the invention the control element is implemented so that it turns the main contact (11) in the same rotational direction during controlling operations. The invention also considers the related control method for shunt resistance circuit breaker and use of the circuit breaker.
EFFECT: provision of simple control function ensuring main contact actuation before resistible contact.
28 cl, 14 dwg
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