电力电容器为什么装设失压保护？
["\u7535\u5bb9\u5668\u6240\u63a5\u6bcd\u7ebf\u5931\u53bb\u7535\u538b\u540e\uff0c\u7531\u4e8e\u6bcd\u7ebf\u7535\u538b\u6062\u590d\u65f6\uff0c\u53d8\u538b\u5668\u548c\u7535\u5bb9\u5668\u5c06\u540c\u65f6\u6295\u5165\uff0c\u53ef\u80fd\u9020\u6210\u7535\u5bb9\u5668\u8fc7\u7535\u538b\u635f\u574f\uff1b\u6216\u8005\u6bcd\u7ebf\u5931\u538b\u540e\uff0c\u7535\u5bb9\u5668\u7684\u79ef\u7d2f\u7535\u8377\u5c1a\u672a\u91ca\u653e\u524d\u7535\u538b\u6062\u590d\uff0c\u5c06\u4f7f\u7535\u5bb9\u5668\u518d\u6b21\u5145\u7535\u4e5f\u80fd\u9020\u6210\u7535\u5bb9\u5668\u8fc7\u7535\u538b\u635f\u574f\uff0c\u6545\u9700\u88c5\u8bbe\u6bcd\u7ebf\u5931\u538b\u4fdd\u62a4\u3002"]