| 摘要 |
FIELD: electricity. ^ SUBSTANCE: according to method of arcless switching, prior to current switching at section of circuit, comprising parallel-connected circuit breaker and load, current pulse is sent through circuit breaker, and its value is equal to, and direction is opposite to accordingly value - I0 and direction of switched current. Synchronously with current pause, at switched section of circuit, circuit breaker electrodes are opened at the specified distance relative to each other, at the same time current pulse is sent through circuit breaker by connection of artificial long line (ALL) in parallel, which is previously charged to voltage of U0=I0ü, where ü=(10-110-3)Rl - wave resistance of ALL, and Rl - load resistance. Then prior to or at the moment of current pause termination, circuit is broken between the second and third or third and fourth links of artificial long line, as current in inductance accordingly reaches the third or fourth link of zero value. ^ EFFECT: reduced weight and dimensional parametres of artificial long line used to create current pause at switching section of circuit by possibility to use only two or three capacitors in ALL with working voltage equal to product of switched current and load resistance. ^ 4 dwg |
