Grounding resistance cabinet
rondedzero yechigadzirwa
Parizvino, iyo isina kwayakarerekera point grounding nzira kuburikidza nekupikisa yakanyorwa mumitemo yeindasitiri yemagetsi.Iyo indasitiri yemagetsi yakajairwa DL/T620-1997 "Overvoltage Dziviriro uye Insulation Coordination yeAC Electrical Installations" inotaura muChinyorwa 3.1.4: "5~35KV inonyanya kuumbwa Neyekufambisira kwemagetsi uye kugovera sisitimu inoumbwa netambo tambo, kana imwe chete. -phase yepasi mhosva ine yakakura capacitive ikozvino, yakaderera-resistance grounding nzira inogona kushandiswa, asi kuvimbika zvinodiwa zvemagetsi, kukanganisa kwemagetsi enguva pfupi uye yenguva pfupi pamidziyo yemagetsi panguva yekukanganisa, uye Impact pakutaurirana Relay kuchengetedza tekinoroji zvinodiwa. uye ruzivo rwekushandisa munharaunda, nezvimwe. "Chisungo 3.1.5 chinoti: "5KV uye 10KV magetsi ekugovera masisitimu uye magetsi emagetsi masisitimu, kana imwe-chikamu chepasi chinokanganisa capacitor ikozvino idiki, kuitira kudzivirira Kukuvadza kumidziyo yakaita seresonance, gap, I arc grounding overvoltage, nezvimwe. ., inogona kumiswa nekuramba kwakanyanya. "
Kune dhizaini uye kusarudzwa kwemakabati ekupikisa, ndapota tarisa kune: DL/780-2001 Distribution System Neutral Grounding Resistor Neutral Grounding Method inzira inosanganisira iyo insulation level yemitsara nemidziyo, kupindira kwekutaurirana, relay kuchengetedza uye magetsi ekupa network kuchengetedza. Nekuda kwedambudziko rakazara rekuvimbika uye zvimwe zvinhu, masisitimu emagetsi ekugovera network yenyika yangu uye makuru maindasitiri nemabhizinesi emigodhi akasiyana.Munguva yakapfuura, vazhinji vavo vaishandisa nzira yekushanda yenzvimbo isina kwayakarerekera uye yakadzikwa nearc kudzvinyirira coil.Mumakore achangopfuura, nekuda kwekuvandudzwa kwesimba remagetsi uye kuwedzera kwekushandiswa kwesimba kwevashandisi, mamwe mapurovhinzi uye emakanzuru emagetsi magridi akakurudzira zvine simba maitiro ekushanda ekupikisa pasi.
