因此重点分析变压器纵差保护不平衡电流产生的原因，并寻求减少它对变压器纵差保护影响的主要措施。
The cause of its creating unbalanced current was emphasized to analyze. The main measures for reducing the impact on this protection were sought.
通过分析变压器传统纵差保护在反映接地故障时灵敏度上的不足，论述了装设零序差动保护的必要性。
It is necessary to install zero-sequence differential protection because conventional differential protection is not sensitive enough to grounded fault.
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