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首页> 外文会议>IEEE Conference on Energy Internet and Energy System Integration >Method for Debugging the Polarity of the Mutual Inductor for 1,000 kV EHV Regulating and Compensating Transformer
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Method for Debugging the Polarity of the Mutual Inductor for 1,000 kV EHV Regulating and Compensating Transformer

机译：用于调试互感器的极性的方法，用于1,000 kV EHV调节和补偿变压器

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摘要

For the polarity test of the CT for 1, 000kV ultra-high voltage (UHV) infrastructure projects, the polarity layout method and test program of a main transformer, etc. were discussed under 3/2 complete serial connection mode in an all-round manner. The protection of 1, 000kV bus difference, circuit breakers, lines and high resistance, the polarity of a metering device CT and the receiving method of a secondary circuit were discussed; and a reasonable point polarity method was provided before actual production. The polarity configuration of CTs at the low-voltage side of an ultra-high voltage transformer body bushing, common windings, a voltage regulation-compensation transformer, a house transformer and a main transformer, and the calculation logic of protective devices were studied. The effect of essential factors such as actual wring, equivalent impedance, etc. on polarity were analyzed, and the adverse factor of voltage regulation position was pointed out. When the polarity at the high-voltage side of the housing transformer was being studied, it is strongly interfered by electromagnetic coupling. The selection scheme of CT secondary circuit was studied according to the requirements of different ultra-high voltage protective devices, and the point polarity measures of the voltage regulation-compensation transformer were explored according to protection calculation logic. When the polarity of the main transformer and the auxiliary transformer for a compensation transformer were being tested, the cause of interference among three phases due to the Y/Δ wiring method at HV and low sides of the main transformer was mainly discussed.
机译：对于1，000kV超高电压（UHV）基​​础设施的极性测试，在全轮的3/2完整的串行连接模式下讨论了主变压器等极性布局方法和测试程序。方式。讨论了保护1，000kV总线差，断路器，线路和高电阻，计量装置CT的极性和辅助电路的接收方法;在实际生产之前提供了合理的点极性方法。研究了超高压变压器体衬套的低压侧的CTS的极性配置，公共绕组，电压调节补偿变压器，房屋变压器和主变压器以及保护装置的计算逻辑。分析了实际绞合，等效阻抗等的基本因素的影响，指出了电压调节位置的不利因素。当研究了壳体变压器的高压侧的极性时，它通过电磁耦合强烈干扰。根据不同超高压保护装置的要求研究了CT二级电路的选择方案，并且根据保护计算逻辑探索了电压调节补偿变压器的点极性测量。当经过测试主变压​​器和用于补偿变压器的辅助变压器的极性时，主要讨论了在主变压器的HV和低侧的Y /δ布线方法引起的三相中干扰的原因。

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