With the rapid development of telecommunication technology, the structure of telecommunication network is becoming more and more complex.

Onye na-enye ụgbọ elu na-enye ikike ọkụ dị mfe iji kpoo ọkụ n'okpuru ọnọdụ nke voltaji dị elu, Ogologo oge dị elu na elu, Na mgbakwunye na iwere ihe dị mma (such as…

　　The isolation transformer mentioned here refers to the power frequency transformer working at 5OHz frequency. In the UPS power supply system, the isolation transformer is a main component. According to the difference of…