Tam sim no Transformer (CT) ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv thiab kev ua haujlwm zoo rau kev nyab xeeb thiab txhim kho} voltage nruab. Nws yog qhov tseem ceeb rau kev sim thiab kuaj mob ib xyoos ib zaug ntawm CTS. Nov yog cov khoom ntsuas tseem ceeb uas peb yuav tsum tau ua thaum ntsuas CTS.
Rwb thaiv tsev tsis kam (IR) xeem
Lub Hom Phiaj: Ntsuam xyuas kev rwb thaiv tsev nruab nrab ntawm thawj, theem nrab, thiab cov tub ntxhais.
Txoj Kev: Siab - voltage dc thov siv cov tes ntsuas ntawm cov me ntsis.
Txhais:
High I IR → Noj Qab Haus Huv Rwb Thaiv Tebchaws
Tsawg IRA IRA noo lossis Rwb Thaiv Tsev Ncu
Ct analyszer kuaj (ct tsis protalyzer)
Ntsuam xyuas kev kawm siv Megger CT Analyzer, uas tau ntsuas txhua yam hluav taws xob ntawm CT, suav nrog:
1. Winding tsis kam (wr):
Ntsuas cov kev tiv thaiv ntawm cov windings ob tog los ntes txoj kev sib txuas ntawm txoj kev sib txuas lossis luv.
(Ntsuas txiav tawm los ntawm ct analyzer nrog kev kho kom sov tau thov.)
2. Piv txwv:
Tshaj tawm qhov tseeb tig cov piv sib piv cov npe piv.
3. Theem yuam kev / theem pov tseg:
Measures angular deviation between primary and secondary currents - essential for accurate metering and protection.
4. Excitation (magnetization / saturation) nkhaus:
Txiav txim siab lub hauv caug - pom cov hluav taws xob voltage thiab ct content tus cwj pwm raws li cov kev txhaum.
5. Burden & Qhia Qhov Tseeb:
Tshaj tawm lub CT tswj hwm qhov raug nyob hauv qab ntawm lub nra hnyav li ib tus qauv IEC / IEE.
6. Polarity Test:
Qhia txog qhov kev cob qhia kom raug thaum lub hom phiaj theem pib thiab theem nrab.
7. Demagnetization muaj nuj nqi:
Txiav Demagnetizes CT CORE tom qab kuaj kom rov muaj tus yam ntxwv muaj tseeb.
Capacitence & Dissipation Qhov (C & DF / TAN Delta)
Lub Hom Phiaj: Ntsuas cov rwb thaiv tsev diulation thiab ntes thaum laus laus.
Txoj kev: siab - voltage ac thov; Capacitance thiab tan Delta (dissipation qhov ntsuas) ntsuas.
Txhais:
Lub Peev Xwm Capacitance → Kev Noj Qab Haus Huv Kev Noj Qab Haus Huv
Nce tan dhta → noo noo, tshav kub, lossis paug