描述
电力变压器作为电力系统中的核心设备，其稳定可靠运行对电力系统是至关重要的，但是任何设备都不能保证永远不出故障，变压器出故障也是在所难免的，但是我们可以通过分析变压器的运行状态参数，提前预测和避免变压器可能出现的故障，提早做打算，从而保证变压器的运行。因此电力系统的工作人员应该重视变压器的运行参数研究，加强对变压器运行状态的分析和故障诊断的研究，这样才能保证电力系统的长期高效稳定地运行。
变压器漏油。变压器漏油是一个对变压器安全运行造成巨大影响的事故，如果发生漏油，将直接导致变压器运行瘫痪，产生环境污染，给企业带来巨大的经济损失，影响国民经济生活。变压器漏油根据大量的经验总结，主要发生在两个位置，一个是油箱的焊接处，一个是油箱的防爆管。防爆管由于结构中存在一个玻璃膜，在变压器运行时产生震动，震动会将玻璃膜震破碎，如果不能及时发现，就会造成漏油的后果。因此后期可以通过加装调压阀来取消安装防爆管所带来的隐患。焊接处漏油往往是因为焊接质量不过关造成，因此一方面要加强焊接工艺，另一方面要加强巡检，及时发现及时处理。
变压器铁芯多处接地。根据国家标准规定，电力变压器的铁芯位置，只允许有一个位置接地，如果铁芯的接地位置超过一个，就会使铁芯停止工作，导致变压器不能正常运行。针对变压器铁芯出现多处接地的现象，可以通过对铁芯和变压器油箱上施加直流电冲击，将接地线全部烧断，为了确保接地线完全烧断，可以多次电冲击。另外就是停机，打开油箱检测，发现多余的接地线，剪除多余的接地线。
变压器接头过热。变压器在设计时就按照接头过热，自动熔断的机制进行设计，这是一种保护变压器不被烧坏的方式。但是为了让变压器在发生接头过热后，能继续恢复工作，可以用下面两种方法：
普通链接。虽然变压器的设计是过热熔断，但是变压器工作起来难免发热，因此需要对接头的过热熔断机制接头换成普通连接，这样就能保证过热也能连接，使变压器继续工作。
铜质或铝质的电线连接变压器的接头都是采用的铜材质，但是铜材质在潮湿的环境内会发生电解反应，所以同接头无法与铝接头相连接，所有可以通过给变压器加装一端铜接头一端铝接头的接线，就可以解决连接问题。
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