CTs yog qhov tseem ceeb hauv ntau daim ntawv thov, suav nrog:
Kev Tiv Thaiv Cov Txheej Txheem: CTs yog ib qho tseem ceeb rau kev tiv thaiv relays uas tiv thaiv cov khoom siv hluav taws xob los ntawm overloads thiab luv circuits. Los ntawm kev muab ib qho kev ntsuas-down version ntawm tam sim no, lawv ua kom cov relays khiav lag luam yam tsis raug cuam tshuam rau cov tam sim no siab.
Metering: Hauv kev lag luam thiab kev lag luam, CTs yog siv los ntsuas kev siv hluav taws xob. Lawv tso cai rau cov tuam txhab siv hluav taws xob saib xyuas cov hluav taws xob siv los ntawm cov neeg siv loj yam tsis muaj kev sib txuas ncaj qha rau cov khoom siv ntsuas rau cov kab hluav taws xob siab.
Lub Hwj Chim Zoo Saib Xyuas: CTs pab hauv kev txheeb xyuas lub zog zoo los ntawm kev ntsuas kev sib haum xeeb tam sim no thiab lwm yam tsis zoo uas cuam tshuam rau kev ua haujlwm ntawm cov tshuab hluav taws xob.
Nkag siab Voltage Transformers (VT)
A Qhov Voltage Transformer(VT), tseem hu ua Potential Transformer (PT), yog tsim los ntsuas qhov voltage hauv cov tshuab hluav taws xob. Zoo li CTs, VTs ua haujlwm raws li lub hauv paus ntsiab lus ntawm electromagnetic induction, tab sis lawv txuas nrog rau lub voj voog uas nws qhov voltage yuav tsum ntsuas. VT nqis los ntawm qhov hluav taws xob siab mus rau qis dua, tswj tau qib uas tuaj yeem ntsuas kev nyab xeeb los ntawm cov qauv ntsuas.
VTs feem ntau siv hauv:
Kev ntsuas hluav taws xob: VTs muab qhov ntsuas hluav taws xob muaj tseeb rau kev saib xyuas thiab tswj lub hom phiaj hauv cov chaw nres tsheb thiab cov chaw xa khoom.
Cov Txheej Txheem Kev Tiv Thaiv: Zoo ib yam li CTs, VTs yog siv rau hauv kev tiv thaiv relays txhawm rau txheeb xyuas qhov txawv txav tsis zoo, xws li overvoltage lossis undervoltage, uas tuaj yeem ua rau cov khoom puas tsuaj.
Kev ntsuas hluav taws xob: VTs kuj tau ua haujlwm hauv kev siv hluav taws xob ntsuas hluav taws xob, tshwj xeeb tshaj yog rau cov tshuab hluav taws xob siab, tso cai rau kev siv hluav taws xob ntsuas hluav taws xob kom raug.
Qhov txawv ntawm qhov tseem ceebCTthiab VT
Thaum ob qho tib si CTs thiab VTs yog cov khoom tseem ceeb hauv cov tshuab hluav taws xob, lawv sib txawv hauv lawv cov qauv tsim, kev ua haujlwm, thiab kev siv. Nov yog qhov sib txawv tseem ceeb:
Kev ua haujlwm:
CTs ntsuas tam sim no thiab txuas nrog hauv series nrog cov load. Lawv muab cov scaled-down tam sim no uas yog proportional rau thawj tam sim no.
VTs ntsuas qhov hluav taws xob thiab txuas nrog lub voj voog. Lawv nqis los ntawm high voltage mus rau theem qis rau kev ntsuas.
Hom kev sib txuas:
CTs txuas nrog hauv series, txhais tau tias tag nrho cov tam sim no ntws los ntawm thawj winding.
VTs txuas nrog rau qhov sib npaug, tso cai rau qhov hluav taws xob thoob plaws lub hauv paus Circuit Court ntsuas yam tsis cuam tshuam qhov ntws ntawm tam sim no.
Cov zis:
CTs tsim cov tam sim no theem nrab uas yog ib feem ntawm cov thawj tam sim no, feem ntau nyob rau hauv qhov ntau ntawm 1A lossis 5A.
VTs tsim cov hluav taws xob theem nrab uas yog ib feem ntawm thawj qhov hluav taws xob, feem ntau ua qauv rau 120V lossis 100V.
Daim ntawv thov:
CTs feem ntau yog siv rau kev ntsuas tam sim no, kev tiv thaiv, thiab ntsuas ntsuas hauv cov ntawv thov tam sim no.
VTs yog siv rau kev ntsuas hluav taws xob, kev tiv thaiv, thiab ntsuas ntsuas hauv cov ntawv siv hluav taws xob siab.
Kev txiav txim siab tsim:
CTs yuav tsum tau tsim los tswj cov dej ntws siab thiab feem ntau ntsuas raws li lawv lub nra (cov load txuas nrog rau theem nrab).
VTs yuav tsum tau tsim los tswj cov high voltages thiab raug ntsuas raws li lawv qhov voltage transformation piv.
Post lub sij hawm: Jan-23-2025