Dab tsi yog qhov sib txawv ntawm cov hloov hluav taws xob tam sim no thiab cov hluav taws xob voltage?
Sep 22, 2025| Tsis pub dhau lub moj khaum ntawm lub zog hluav taws xob ntawm lub zog hluav taws xob, muaj kev nplua nuj ntawm lub zog muaj zog hauv daim ntawv ntawm cov loj heev thiab cov dej ntws loj. Tib neeg tsis tuaj yeem pom tau ncaj qha lossis ntsuas qhov hluav taws xob no, uas yog vim li cas cov hloov hluav taws xob thiab voltage transformers yog xav tau los ua "ob lub qhov muag" thiab "pob ntseg" ntawm lub system. Ntawm lawv, hloov tam sim no thiab voltage transformers yog ob hom tseem ceeb tshaj plaws. Txawm hais tias lawv muaj cov npe zoo sib xws, lawv cov haujlwm yog qhov sib txawv heev, ua ke sib sau lub hauv paus rau kev ntsuas, ntsuas kev tiv thaiv hauv lub zog.
Ⅰ. Tub Ntxhais Missions sib txawv: Ntsuas cov khoom tam sim no tam sim no
Qhov no yog qhov sib txawv tshaj plaws ntawm ob, uas txiav txim siab txhua qhov lawv tsim thiab cov yam ntxwv siv.
⑴ Tam sim no hloov pauv tam sim no (CT): nws lub luag haujlwm tseem ceeb yog los ntsuas thiab sib pauv hloov tam sim no. Nws precisely hloov qhov loj tam sim no ntawm thawj sab (xws li 1000a, mus rau sab nraud ntawm sab nraud (xws li 5A), uas yog tom qab ntawd siv los ntawm cov seev cev thiab cov khoom tiv thaiv.
⑵ Voltage Transformer (PT / VT): Nws lub ntsiab muaj nuj nqi yog ntsuas thiab faib cov hluav taws xob voltage. Nws qhia meej txog kev txhawb nqa siab ntawm thawj sab (xws li 10kv) rau sab nraud ntawm sab nraud (feem ntau yog siv los ntawm cov cuab yeej thiab cov khoom tiv thaiv.
Ii. Cov ntsiab lus ua haujlwm sib txawv thiab cov qauv txheej txheem: series txuas thiab sib txuas sib txuas
Cov hauv paus pib ua cov qauv sib txawv:
Thaum CT txuas nrog hauv Circuit Court, nws tus kheej impedance yuav tsum tsis muaj tsawg kawg nkaus kom tsis txhob cuam tshuam qhov ntsuas tam sim no thiab ua rau muaj hluav taws xob tsis tsim nyog.
Thaum PT txuas nrog hauv parallel hauv Circuit Court, nws tus kheej impedance yuav tsum tau ua kom tsis txhob muaj kev cuam tshuam ntau dhau los (yog li tsis txhob muaj kev cuam tshuam rau cov kev cuam tshuam ntawm lub system voltage.
Txawm hais tias hloov pauv tam sim no (CTS) thiab voltage transformers (pts / VTS) muaj cov cai tsis sib xws "Golden Puam" hauv lub tshuab hluav taws xob. Ua ke, lawv hloov tus thawj siab - cov cim tsis muaj kev nyab xeeb thiab cov ntaub ntawv qhia tam sim no, ntsuas kev ntsuas thiab tswj.