特高压变压器调压补偿变压器配置独立差动保护的必要性

Necessity of UHV Regulating and Compensating Transformer Equipped with Independent Differential Protection

摘要:

针对特高压变压器主体变压器与调压补偿变压器分体结构的特点，介绍了特高压变压器差动保护配置方案，通过对调压及补偿绕组内部故障的动态模拟试验，得出大差差动保护对调压补偿变内部故障灵敏度不足，说明调压补偿变压器配置独立差动保护的必要性。

Abstract:

Targeted at the independent configuration of the UHV main transformer and regulating - compensating transformer，the paper introduced the differential - protection configuration of UHV transformers. Through dynamic simulation of faults inside the regulating and compensating windings，it was concluded that the sensitivity of big - difference - differential protection to internal faults of the regulating - compensating transformer was insufficient，explaining the necessity of independent differential protection for regulating - compensating transformers.