Zithini iimpawu zesixhumi sentambo?

(1) I-terminal yekhebula ye-switchgear ye-35kV SF6 evalwe ngokupheleleyo iza kufaka i-terminal yonke kwisokethi ekhethekileyo ekwigumbi elincinci elivalwe ngokupheleleyo le-switchgear, kwaye zonke iindawo eziveziweyo zisekelwe phantsi.

(2) Ii-terminals zekhebula ze-10kV SF6 ezivaliweyo ngokupheleleyo (ikhabhinethi yenethiwekhi yeringi) zahlulwe zaba zizihlanganisi ezahlulwe ngokwe-plug-in ezine-engile yasekunene (ezimile okwengqiniba) (ze-200A) kunye nezihlanganisi ezahlulwe ngokwe-engile yasekunene ze-bolt (ezisetyenziswa kakhulu kwi-630A)). Kukwakho nesigqubuthelo esikhethekileyo sokukhusela kwi-terminal yekhebula, oko kukuthi, isigqubuthelo esikhethekileyo sokukhusela sisetyenziselwa ukugubungela inxalenye ephilayo.

Isiphelo sentambo senziwe kwangaphambili kumzi-mveliso kunye nezinto eziphambili, kwaye siphumelele uvavanyo kumzi-mveliso. Isiphelo sentambo sifakwe ngokupheleleyo kwisokethi ekhethekileyo ekwigumbi elivaliweyo ngokupheleleyo lekhabhathi yokutshintsha, kwaye inxalenye eveziweyo isekelwe.

2. Uqhagamshelo phakathi kwesiphelo sentambo kunye nekhabhinethi yokutshintsha

(1) Isiphelo se-plug-in se-35kV siqhagamshelwe ngeeplagi ezihambayo nezinganyakaziyo, kwaye isiphelo se-cable sifakwe kwi-cable socket esele yenziwe ngaphambili yekhabhinethi yeswitshi. I-socket yahlulwe ngokupheleleyo ngaphakathi kwekhabhinethi yeswitshi, kwaye ukufakwa kweentambo akuchaphazeli imeko yangaphakathi yekhabhinethi yeswitshi. Umfanekiso 4-12 ngumzobo wesicwangciso sokuphela kwentambo ye-plug-in ye-35kV.

(2) Izihlanganisi ezahlulwe nge-plug-in engile yasekunene zihlala zifanelekile kwii-feeders ze-transformer. Umgca womhlaba wombane odibana nekhabhinethi yeswitshi wenziwe ngamalungu atyibilikayo. Faka ngqo kwinkxaso yekhabhinethi yeswitshi ngokusebenzisa uqhagamshelwano, kwaye uqhagamshele nenxalenye yombane yekhabhinethi yeswitshi. Inkxaso yahlulwe ngokupheleleyo ngaphakathi kwekhabhinethi yeswitshi, kwaye ukufakwa kweentambo akuchaphazeli imeko yangaphakathi yekhabhinethi yeswitshi.

(3) Isixhumi esahlulwe yi-plug-in esine-engile yasekunene se-bolt siqhagamshelwe ngee-bolts ze-stud ze-M16 kwimingxunya yezikrufu kwinkxaso yekhabhinethi yokutshintsha. Inkxaso yahlulwe ngokupheleleyo ngaphakathi yekhabhinethi yokutshintsha, kwaye ukufakwa kweentambo akuchaphazeli imeko yangaphakathi yekhabhinethi yokutshintsha.

1) Isixhobo sokufaka i-voltage kwisixhobo esikhethekileyo, size senze uvavanyo lwe-standing voltage kwi-cable terminal ngesixhobo soqhagamshelo ngaphakathi kwi-switch cabinet.

2) Izixhobo zesiphelo sentambo zenza uvavanyo lwe-standing voltage kwisiphelo sentambo ye-plug-in. Akufuneki ukuba yahlule isiphelo sentambo kunye nekhabhinethi yeswitshi, kwaye ingenziwa ngqo kwikhabhinethi yeswitshi. Ke ngoko, inxalenye yoqhagamshelo lweswitshi yokwahlula umgca wekhabhinethi yeswitshi kunye nentambo iyadingeka ukuba ibe namandla e-standing voltage afanayo nekhebula.

(2) Ukuhlolwa kombane kunye namanyathelo okuxhasa umhlaba:

Iswitshi evalwe ngokupheleleyo ineendlela zokukhusela ezigqibeleleyo. Iindlela zokhuseleko zeswitshi ziye zagqitywa kakhulu, zinomsebenzi wokuthintela ukusetyenziswa kakubi, okunokuthintela ukwakhiwa kwentambo xa imela yokumisa ingavaliwe. Nangona kunjalo, kusafuneka ukwandisa iindlela zokhuseleko kwindawo ngexesha lokwakhiwa kwentambo. Ngokweemfuno ze-DL 409-1991 “Imimiselo Yomsebenzi Wokhuseleko Lweshishini Lombane”, xa usebenza kwindawo yokumisa intambo, isekethe kufuneka ivavanywe, ikhutshwe, kwaye ibekwe phantsi. Nangona kunjalo, le misebenzi ayinakwenziwa kwimigca yentambo edibanisa iswitshi evalwe ngokupheleleyo. Ukugweba ukuba intambo yentambo inombane okanye ayinawo umbane kunokuxhomekeka kuphela kumgwebo wemeko yokusebenza kweswitshi, efuna isixhobo sokuhlola umbane esizinikeleyo.

Ngokudityaniswa ngokusondeleyo komsebenzi weswitchgear kunye nomsebenzi we-cable terminal, ukuhlolwa kombane kunye nomsebenzi wokufakela kuya kwenziwa ngeswitchgear.

1) Ukuhlolwa kombane ngekhabhinethi yokutshintsha: Iphaneli yezixhobo yekhabhinethi yokutshintsha evalwe ngokupheleleyo ixhotyiswe ngezixhobo zokuhlola umbane, eziphumelela uvavanyo lombane lwesekethe yesibini.

2) Ukuhlolwa kombane ngesixhobo sokuhlola umbane esikhethekileyo: Ukuba kusetyenziswa iswitshi ye-35kV evalwe ngokupheleleyo eneziphelo ze-plug-in, umenzi unokubonelela ngesixhobo sokuhlola umbane esikhethekileyo sokuhlola umbane ngokuthe ngqo kwiindawo zekhebula ezingenanto. Nangona kunjalo, emva kokuba i-plug-in terminal ifakiwe, akunakwenzeka ukwenza uvavanyo lombane ngokuthe ngqo kwicandelo lesiphelo se-cable terminal. Ukuba kusetyenziswa i-plug-in terminal ye-10kV, ingenza uvavanyo lombane kwindawo yokuhlolwa kombane egcinelwe i-cable terminal ngezixhobo ezikhethekileyo ezibonelelwe yiyo. Nangona kunjalo, ulwazi lolu hlobo lwesixhobo sokuhlola umbane alubonakali, kwaye ukusebenza okuthile kuxhomekeke ekuthembekeni kwesixhobo esikhethekileyo ngokwaso.