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 oil level or a leak.
如果在继电器中发现可燃气体，这说明有内部故障，比如过热或者电弧作用；而继电器内的空气只说明油位低或者有漏油。
Using time relay type electronic drainage device emissions every 2 minutes: open a, an average of about 2 seconds leak compressed air every day, the leakage of time.
采用时间继电器式电子排水器排放：每2分钟开一次，平均约2秒泄露压缩空气，每天的泄露时间。
An air pressure regulating relay is arranged in a circuit in the cabinet to cut the circuit in time when air leak happens in the cabinet body to make the air pressure in the cabinet too low.
柜内的电路中还装有气体压力调节继电器，以便在柜体漏气造成其内气压过低时及时切断电路。
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