通信枢纽楼如何防止容性负载诱发谐振过载宕机的探讨

Discussion on How to Prevent the Capactive Load Induced Resonance Overload Outage in the Communication Hub Building

目前新建大多数枢纽楼,由于负载较轻而部分供电设备(如:直流开关电源、六波工频UPS等)配置容量过大,造成以上设备轻载运行,当上述交直流供电设备均处于满配置轻负荷工作状态,设备运行时对外呈现容性负载,当供电总回路处于容性负载状态,发生谐振时轻则造成交流高低压配电输入端过载跳闸宕机,如果发电机运行时会造成并机控制电路失效,造成输出失步过载停机及控制电路发生损坏,重则会引起UPS输入端抑制回灌杂波电容器发生爆炸和燃烧。为了避免以上问题发生,解决枢纽楼供电回路由容性负载变为感性负载显得尤为重要。

At present,for most new hub buildings,due to the large configuration capacity of some power supply equipment(such as DC switch power supply,six-wave working frequency UPS,etc.),resulting in light load operation.When the above AC and DC power supply equipment are in full configuration and light load,AC high and low voltage power distribution input if the end overload tripping and outage,when the generator causes the parallel control circuit failure,causing the output instep overload shutdown and the control circuit damage,it will also cause the explosion and combustion of the fusion echo capacitor at the UPS input.In order to avoid the above problems,it is particularly important to solve the capacity load to perceptual load.