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Muaj peev xwm Transformers rau Metering
Potential transformers, or PTs, also measure an aspect of power supply. But while CTs measure current, PTs measure voltage. This is important since countries like America utilize different voltages in homes for various purposes (like the 120 volts used by appliances).
Muaj nuj nqi
Muaj peev xwm hloov pauv, lossis PTs, kuj ntsuas ib qho ntawm cov khoom siv hluav taws xob. Tab sis thaum CTs ntsuas tam sim no, PTs ntsuas qhov hluav taws xob. Qhov no yog qhov tseem ceeb vim cov teb chaws xws li Asmeskas siv cov hluav taws xob sib txawv hauv tsev rau ntau lub hom phiaj (xws li 120 volts siv los ntawm cov khoom siv). Muaj peev xwm hloov pauv yuav ntsuas thiab txo cov nqi hluav taws xob siab rau hauv qis dua. Txawm hais tias PTs ua haujlwm rau lub hom phiaj tseem ceeb, muaj qee qhov kev siv hluav taws xob uas tsis siv lub peev xwm hloov pauv. Txawm li cas los xij, qee tus kws tshaj lij hais tias tsis siv PTs tuaj yeem ua rau muaj kev phom sij rau cov neeg siv cov ntsuas no thaum lub sij hawm sim transformer lossis lwm yam haujlwm.
Thaum kawg, ob qho tib si CT xeem thiab PT xeem tuaj yeem ua kom ntseeg tau tias cov cuab yeej hloov pauv tau ua haujlwm zoo thiab tias ob qho tib si tam sim no thiab qhov hluav taws xob tseem nyob hauv lawv lub hauv paus tsim nyog. Peb cov khoom tuaj yeem muab qhov kev txav mus los thiab qhov tseeb uas koj xav tau kom tau txais cov ntawv nyeem meej thiab xa cov nqi xa mus rau cov neeg siv khoom. Yog xav paub ntxiv txog vim li cas koj thiaj li yuav tsum tau ua qhov tseem ceeb rau kev ntsuam xyuas qhov tseeb rau koj cov cuab yeej transformer, thov hu rau peb hnub no.
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