提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
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