分析比较UPS一次及其配电电路，推荐优化方案；
UPS primary circuit and its switching circuit are analyzed, optimization solution is recommended.
用单回一次受电设施和单台配电变压器供给所有的馈电线路。
A single primary service and distribution transformer supply all the feeders.
该装置体积小，安装简便，不对原一次线路进行改动，不对线路绝缘造成威胁，解决了配电网分支线路无功参数不易测量的难题。
This equipment is easy to be fixed for its small volume. It doesn't change the primary line and has no impacts on the insulation of transmission line.
熔断器也可用在配电网的许多一次线路中，在少数情况下，也用于大功率容量的高压设备。
Fuse are also used in many applications on distribution primary circuits and to a limited extent on bulk power high-voltage equipment.
熔断器也可用在配电网的许多一次线路中，在少数情况下，也用于大功率容量的高压设备。
Fuse are also used in many applications on distribution primary circuits and to a limited extent on bulk power high-voltage equipment.
应用推荐