On a slow accumulation of gas, due perhaps to slight overload, gas produced by decomposition of insulating oil accumulates in the top of the relay and forces the oil level down.
在气体慢积累模式中,可能由于轻微过在,绝缘油分解产生的气体在继电器的顶部聚集,迫使油位下降。
2
Flammable gas found in the relay indicates some internal fault such as overheating or arcing, whereas air found in the relay may only indicate low oillevel or a leak.