限定燃弧时间试验法

断路器在直接试验线路中试验时,如果试品开断失败,由于燃弧时间过长,试品常遭破坏,会给试品的设计者带来许多麻烦。本文介绍两种试验线路,在其中额外设置了带有并联电容和电阻的辅助开断装置,它可避免过长的燃弧时间和因此而产生的试品爆炸。其中的一种试验线路还能提供测量弧后电流的新途径。

A Test Method with the Limited Arcing Time

While being tested in direct test circuit , the tested circuit-breaker may be distroyed due to excessive long arcing time if it fails to clrar. It would get the designers of circuit-breakers into trouble. This paper introduces two special test circuirs with additional auxiliary interrupting device equipped with parallel capacitors and resistors. with these circuits the undue long arcing time and thus the explosion of tested circuitbreaker may be avoided. one of the test circuits can also provide a new approach to measure post-arc current.