The cooling method of nature oil circulation is not only widely used in small-middle type power transformer, but also used in large type power transformer with lowload and low ambient temperature.
UPS in a very short time into the "German sunshine low storage battery voltage automatic shutdown" working condition, so as to stop supply power to the load.
UPS在极短时间内进入“德国阳光蓄电池电压过低自动关机”的工作状态，从而停止向负载供电。
3
Combining with some power distribution project of small and middle theatre, the main load, the composition of power distribution system and low voltage power distribution system were introduced.