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不间断电源UPS的基本功能就是为设备提供高质量的电源,以避免因电网电压和频率的波动,甚至供电中断以及电网中的尖峰、浪涌等干扰对设备造成的危害。500V·A级后备式不间断电源较为常用,本文介绍其常见故障及排除方法。 一、蓄电池故障 检修UPS电源故障时,首先要检查其蓄电池。蓄电池故障主要是由于蓄电池的端电压过低或内阻过大,主要原因是:
Uninterruptible power supply UPS’s basic function is to provide high-quality power supply equipment to avoid fluctuations in power grid voltage and frequency, or even interruption of power supply and power grid spikes, surges and other interference on the equipment caused harm. 500V · A-class backup uninterruptible power supply is more commonly used, this article describes its common failures and troubleshooting. First, the battery troubleshooting UPS power failure, we must first check the battery. Battery failure is mainly due to the battery terminal voltage is too low or the internal resistance is too large, the main reason is: