TSXMBPCE030
•冷凝器衬套中的油是密封的，正常情况下不应受到干扰
活动应定期检查油位，并向衬套报告任何漏油情况
请立即通知制造商。
2.1.12分接开关
•电力变压器的分接开关具体有两种类型。有载分接开关
二。无励磁分接开关
•对于无回路分接开关，只有在变压器
断电，但在有载分接开关的情况下，当
变压器正在运行。抽头变换器可用于更换抽头。
a、 手动操作
b、 自动地&
c、 从远程
•有载分接开关将是一个独立装置，位于主变压器箱中。自从
在从一个抽头切换到另一个抽头的过程中，会发生一定量的电弧
抽头选择器内的机油会更快变质。因此，这种油不能与
主变压器中的油。有载分接开关配有单独的油枕和机油
电涌继电器。
•每10000次操作后，应检查并更换选择器开关触点
当铜钨尖头和块燃烧到铜基时。
•应在每5000次操作或6个月后（以较早者为准）采集并检查油样
早期的电气故障。如果样品在标准中持续低于30kV达1min
测试试管至IS-335，应更换机油。
•换油期间，应清洁选择开关，以清除粘附的碳。这个
油箱应清理干净，并注入测试值至少为60kV的新鲜油，直至油位
目测表上显示。
•有关施工和维护的详细信息，请参阅随附的OLTC供应商手册
本手册末尾有具体说明。

• Oil in the condenser bushing is hermetically sealed and it should not be disturbed in normal operation. Oil level may be checked regularly and any oil leakage should be reported to the bushing manufacturer for immediate attention. 2.1.12 TAP CHANGER • Tap changers of power transformer are specifically of two typesi. On-Load Tap changer ii. Off Circuit Tap changer • In the case of off circuit tap changer, the tap changing takes place only when the transformer is de-energized, but in the case of on load tap changers the tap changing takes place when the transformer is in operation. The tap changer can be designed for changing the taps. a. Manually b. Automatically & c. From remote • The On-load tap changer will be a self-contained unit housed in the main transformer tank. Since some amount of arcing takes place during the switching operations from one tap to the other, the oil inside the tap selector will deteriorate faster. Hence, this oil cannot be allowed to mix with the oil in the main transformer. On load tap changer is provided with a separate conservator and oil surge relay. • The Selector switch contacts should be examined after every 10,000 operations and replaced when burning of the copper tungsten tips and blocks has progressed to the copper base. • Oil samples should be taken and checked after every 5000 operations or 6 months whichever is earlier for electrical breakdown. If the samples fail consistently below 30kV for 1min in a standard test cell to IS-335, the oil should be changed. • During an oil change the selector switch should be clean down to remove adhering carbon. The tank should be cleaned out and filled with fresh oil having a test value of 60kV minimum to the level indicated on the sight gauge. • For details of construction and maintenance, please refer to the OLTC supplier's manual attached with Specific Instructions at the end of this manual.