Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm transformer testers txawv nyob ntawm seb lawv cov khoom tshwj xeeb thiab kev ntsuas, tab sis cov ntsiab lus tseem ceeb yog tag nrho raws li txoj cai ntawm electromagnetic induction, Ohm txoj cai, thiab niaj hnub digital teeb liab ua tshuab kom ua tiav siab - ntsuas qhov ntsuas qhov ntsuas hluav taws xob transformer.
Txoj Cai Ua Haujlwm ntawm Transformer Comprehensive Tester / Tus Qauv Tester
Hom ntsuas no yog siv los ntsuas lub zog zaus tsis xws li tsis muaj -load poob, load poob, thiab impedance voltage. Nws lub hauv paus ntsiab lus yog raws li nram no:
Lub twj tso kua mis muaj ib tug ua tau - nyob rau hauv siab - efficiency rechargeable roj teeb thiab tsim ib tug peb -theem precision 50Hz sine yoj AC xeem fais fab mov los ntawm ib tug inverter Circuit Court, tshem tawm qhov xav tau rau ib tug sab nraud voltage regulator los yog tam sim no booster.
Thaum lub sij hawm ntsuas, tus qauv teeb liab no yog siv rau lub transformer windings, thiab siab -precision voltage thiab tam sim no sensors synchronously sau cov hluav taws xob kom muaj nuj nqis ntawm lub input thiab output terminals.
Los ntawm kev tsim-hauv microprocessor, rau -channel synchronous AC sampling thiab digital teeb liab ua tiav, ua ke nrog cov txheej txheem kho tsim nyog (xws li kev hloov kho waveform distortion, kho qhov kub thiab txias, thiab qhov voltage / tam sim no tsis yog- ntsuas qhov kev kho), kom suav cov ntsuas tsis zoo xws li lub zog, kev poob, thiab kev ua kom raug.
Qee cov qauv siv thyristor rectifier Circuit Court los kho qhov ntsuas tam sim no, ua ke nrog plaub-terminal txoj kev los txhim kho qhov tseeb.
Transformer Turns Ratio Tester Txoj Cai Ua Haujlwm: Tshwj xeeb tsim los ntsuas qhov sib piv voltage (tig piv) thiab pab pawg sib txuas:
Lub cuab yeej lub teeb liab sab hauv siv qhov kev nyab xeeb, qis -voltage sinusoidal excitation signal rau siab -voltage winding.
Tib lub sijhawm, nws tau txais qhov voltage amplitude thiab theem ntawm qhov siab - thiab qis -voltage windings, thiab xam qhov tseeb lem piv siv lub microprocessor:
K = VHV / VLV K = VHV / VLV.
Los ntawm kev sib piv cov theem sib txawv ntawm cov voltages ntawm ob sab, cov kev sib txuas pab pawg (xws li, Yyn0, Dyn11, thiab lwm yam) yog txiav txim siab.
Cov cuab yeej siv niaj hnub no siv qhov tseeb peb-theem xeem thev naus laus zis, txhawb nqa ib zaug -theem fais fab nkag thiab digitally synthesized peb-theem tso tawm, tsim nyog rau kev ua haujlwm.
Transformer DC Resistance Tester Ua Haujlwm Txoj Cai: Siv los kuaj xyuas qhov txuas txuas ntxiv, vuam zoo, thiab kev sib tshuam -tig luv Circuit Court:
Raws li Ohm txoj cai lij choj (R=U/I), nws siv plaub- hlau (Kelvin) txoj kev ntsuas los tshem tawm cov kev cuam tshuam ntawm cov hlau lead tiv thaiv.
Ib qhov chaw tam sim no muab cov DC ruaj khov tam sim no (piv txwv li, 1A, 5A, 10A) mus rau lub winding nyob rau hauv kev sim, thaum lub siab -precision ADC ntsuas qhov voltage poob thoob plaws winding.
Lub microcontroller txiav txim siab lub xeev khov kho thiab xam cov nqi tsis kam. Qee cov khoom siv muaj qhov ua kom muaj qhov sib nqus kom nrawm nrawm thiab ua kom lub sijhawm ntsuas luv.
