... small size,easy installation,easy maintenance 2)low noise,low loss 3)anti-theft,strong overload ability, ... up protection fuse and plug-in fuse; the low voltage side can install the control electrical appliances, ... features of small size, easy installation easy maintenance, low price, low loss, anti-theft, strong overload ability, and ... www.keynai.com.cn ZGS11 combined power substation (American Pattern)