好学医电在线

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<section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><section><svg viewbox="0 0 1 1"></svg></section></section><section><section powered-by="gulangu"><p><strong>明日复明日，明日何其多。</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><strong>无畏的太阳</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><span>医疗|学习|钻研|电子电路|原理</span><br  /></p></section></section><section><section><svg viewbox="0 0 1 1"></svg></section></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/c1ffdad475233b7d149398f45fd2de24_1.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>欢迎关注</strong></p></section></section><section><section powered-by="gulangu"><section><p><img src="image/20201019/bd270e15bc773c6cddec74c902dc717c_2.png" /></p></section></section><section powered-by="gulangu"><p><strong>好学医电在线</strong></p></section></section></section><section powered-by="gulangu"><p><strong>请留下你指尖的温度</strong></p><p><strong>让太阳拥抱你</strong></p><p><strong>记得这是一个有温度的公众号</strong></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><section><br  /></section></section></section></section><section><section powered-by="gulangu"><p>金武士UPS（LS112KVA）</p></section></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section></section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>故障现象</strong></p></section></section></section></section><section powered-by="gulangu"><p><strong>开机，运行一段时间后，电池指示灯开始闪烁，伴随着报警蜂鸣声，连续鸣叫加闪烁。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/a690e3acda82a07e7a4dc4746ec04f53_3.jpg" /></p></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong><span>分析过程</span></strong><br  /></p></section></section></section></section><section powered-by="gulangu"><p><strong>&nbsp; &nbsp; &nbsp; &nbsp;一、原理</strong></p><p><strong><span>该UPS大致原理：市电220VAC交流输入，分两路。</span></strong></p><p><strong><span>一路到充电板（2块），转换成电池组（8个）所需的电压110VDC，给电池充电。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/75fd352438a5f2ca4d2b612d7f1e8678_4.jpg" /></p></section></section><section powered-by="gulangu"><p><strong><span>另外一路经AC-DC整流电路，输出直流电压供到逆变电路，作DC-AC，直流逆变用。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/27fcd565c401a4090150784a6e92ec94_5.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p><p><strong><span>中间还有控制驱动电路，实现市电输出，电池输出之间的切换。</span></strong></p><p><span><strong>保护电路：过流，过压，温度过高等等。</strong></span></p><p><span><strong>检测报警电路，检测电池，一些核心主电路等等。</strong></span></p></section><section powered-by="gulangu"><p><span><strong>二、分析</strong></span></p><p><strong><span>根</span></strong><strong><span>据报警指示灯可以明确是“电池检测”报警。并且设备是运行一段时间才报警，可以将问题锁定在：两块充电板和电池检测电路上。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/42cde4d66e362299f0a4b3e0cb76dd9b_6.jpg" /></p></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>解决方法</strong></p></section></section></section></section><section powered-by="gulangu"><p><strong>电池刚换不久，排除电池。</strong></p><p><strong>找到两块充电板，测量其220VAC输入正常，其中一块110VDC输出测量不到。</strong></p><p><strong>拆下它，做清洁，除尘处理，发现烧了2块水泥电阻，更换后修复。</strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/7bacf3b39ee70c03873df4be0b97c8b8_7.jpg" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/693d527937dafbfc104acb68287ec9ec_8.jpg" /></p></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p>欢</p></section></section></section><section><section powered-by="gulangu"><section><p>迎</p></section></section></section><section><section powered-by="gulangu"><section><p>关</p></section></section></section><section><section powered-by="gulangu"><section><p>注</p></section></section></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/c1ffdad475233b7d149398f45fd2de24_1.jpg" /></p></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><p>好学医电在线</p><p>和他的朋友们</p></section></section></section></section>