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•提供储油柜，以处理变压器油的膨胀和收缩
在变压器正常运行期间发生。
•如有规定，油枕中提供的柔性分离器或空气室可防止直接
空气与变压器油接触。
•为有载分接开关提供一个较小的油膨胀容器。
•主油枕上安装有磁性油位计，可在发生以下情况时发出警报/跳闸
由于任何原因，油位低于预设油位。
2.1.6泄压装置
•在故障条件下，避免变压器内部形成高油压的装置为
安装在油箱顶部。泄压装置允许快速释放过度压力
可能在发生严重故障时产生。该装置配有报警/跳闸开关。
•泄压装置有一个弹簧加载隔膜，可快速放大
一旦油箱内的压力下降，其驱动力将自动重置
至预设压力。
•盖中明亮的彩色编码机械指示器销在
卸压装置的操作，并通过销衬套中的O形圈固定到位。这
从地面可以清楚地看到引脚，这表明设备已运行。
•向下推动指示器销，直到其停在阀盘上，即可手动重置指示器销。
泄压装置配有屏蔽防风雨报警/跳闸装置，并由
阀盘的移动。

• Conservator is provided to take care of the expansion and contraction of transformer oil, which takes place during normal operation of the transformer. • Wherever specified flexible separators or air cell if provided in the conservator can prevent direct contact of air with the transformer oil. • A smaller oil expansion vessel is provided for the On-Load Tap Changer. • Magnetic oil level gauge is fitted on the main conservator which can give alarm / trip in the event of the oil level falling below the pre-set levels due to any reason. 2.1.6 PRESSURE RELIEF DEVICE • A device for avoiding high oil pressure build up inside the transformer during fault conditions is fitted on top of the tank. The pressure relief device allows rapid release of excessive pressure that may be generated in the event of a serious fault. This device is fitted with an alarm/trip switch. • The pressure relief device has a spring-loaded diaphragm, which provides rapid amplification of its actuating force and will reset automatically, as soon as the pressure inside the tank drops down to the pre-set pressure. • A bright colour coded mechanical indicator pin in the cover moves with the valve disc during the operation of the pressure relief device and is held in position by an 'O' ring in the pin bushing. This pin is clearly visible from ground level, which gives an indication that the device has operated. • The indicator pin may be reset manually by pushing it downward until it rests on the valve disc. The relief device is provided with a shielded weatherproof alarm / trip and is operated by the movement of valve disc.