Peb lub tswv yim ceev rau kwv yees kis kab hluav taws xob
Kev kwv yees qib siab voltage ntawm cov kab sib kis tuaj yeem ua tau los ntawm kev ua raws li peb qhov tseem ceeb: kuaj xyuas cov xaim sib cais, suav tus naj npawb ntawm cov khoom siv hluav taws xob sib txuas, thiab saib xyuas qhov siab ntauwd.
1. Hlau Splitting (Bundled Conductors)
Cov kab hluav taws xob siab dua feem ntau muaj cov kab hluav taws xob sib cais, qhov twg txhua theem tau muab faib ua ntau txoj hlua. Qhov kev teeb tsa no ua rau kom "zoo txoj kab uas hla" ntawm tus neeg xyuas pib los ntawm kev teeb tsa ob peb cov xov hlau nyias nyias hauv ib lub voj voog. Kev sib cais txo cov khoom hnyav, txo qis hluav taws xob, thiab pab tiv thaiv "cov nyhuv corona." Cov nyhuv corona yog ib hom hluav taws xob tawm uas ua rau lub suab nrov nrov thiab ci ntsa iab nyob ib puag ncig ntawm cov xov hlau, tshwj xeeb tshaj yog pom thaum huab cua los nag.
Piv txwv li, 750 kV kab feem ntau siv rau-split conductors. 500 kV kab feem ntau yog plaub-split, txawm hais tias 6-split xov hlau tau dhau los ua ntau dua, tshwj xeeb tshaj yog nyob rau hauv qhov xav tau siab. Cov kab ntawm 220 kV feem ntau yog ob qhov sib cais, thiab 110 kV lossis qis dua siv tib tus neeg xyuas pib.
2. Number of polymer Insulator sheds
Qhov siab dua qhov voltage, qhov ntau sheds yuav tsum tau. Feem ntau:
Txhua cov roj hmab silicone tuaj yeem tiv taus ib puag ncig 10-15 kV, txawm hais tias tus lej pes tsawg txawv nyob ntawm qhov siab, qib siab hauv zos, thiab kab tseem ceeb. Nyob rau hauv qhov chaw siab lossis qhov chaw muaj kuab paug hnyav, tuaj yeem ntxiv cov txee ntxiv.
3. Ntauwd Qhov siab
Kev sib kis ntauwd qhov siab kuj yog qhov qhia tau zoo ntawm qib voltage. Cov kab hluav taws xob siab dua yuav tsum muaj kev nyab xeeb nyob deb ntawm hauv av, cov qauv, thiab cov ntoo. Hauv cheeb tsam nroog, ** qhov siab qhov siab ** los ntawm hauv av rau ntau theem voltage feem ntau raws li hauv qab no:
35-110 kV: Yam tsawg kawg nkaus ntawm ~ 7 meters (kwv yees. 3-4 zaj dab neeg)
220 kV: ~ 7.5 meters (kwv yees li 5 zaj dab neeg)
330 kV: ~ 8.5 meters (nyob ib ncig ntawm 8 zaj dab neeg)
500 kV: ~ 14 meters (12-13 dab neeg)
750 kV: ~ 19.5 m (18-20 dab neeg)
Hauv kev xyaum, 110 kV yees feem ntau sawv ntawm 10-15 meters siab, 220-330 kV yees feem ntau nyob ib ncig ntawm 20-30 meters, 500 kV yees ncav cuag 30-40 meters, 750 kV yees yuav yog 50+ meters, thiab 1000 kV yees nce mus txog 70-80 meters. Ntauwd qhov siab yuav txawv raws li kev nyab xeeb thiab thaj av.
Nrog peb qhov kev kuaj xyuas no, koj tuaj yeem ntsuas qhov voltage theem ntawm cov kab sib kis ntawm ib sab!