中性点不接地电力系统单相漏电监测和选线装置的研究张永李波Theresearchofsinglephase-to-groundmonitorandthelineselectioninstallmentfortheelectricalpowersystemthatneutralpointdoesnotgroundingZhangyongLibo摘要：本文介绍了“S注入法”选线定位新原理，并依据此原理设计了中性点不接地电力系统单相漏电监测和选线装置。它解决了困扰电力系统几十年的两相CT架空出线的单相接地选线问题，完善了延用40年的小电流接地系统两相CT的体制。关键词：S注入法小电流接地系统单相接地选线ABSTRACT：Thisarticleintroduced"Sinjectionmethod",thenewprincipleforselectionandpositionoffaultyline,anddesignedsinglephase-to-groundlinemonitorandselectioninstallment,whichbasedonthisprinciple,fortheelectricalpowersystemthattheneutralpointdoesnotgrounding.ItsolvedtwoCTtobebuiltonstiltsthegoingbeyondsinglephase-to-groundlineselectionquestion,whichpuzzledelectricalpowersystemseveraldozensyear,andhaveimprovedandprolongedthesystemwhichusedofthelittleelectriccurrentneutralgroundingsystemdouble-phaseCTfor40years.KEYWORDS：SInjectionMethodSmallcurrentneutralgroundingsystemSinglephasetogroundFaultlineselection[1][2][3][4][5][6][7][8][9][10]下一页