Dab tsi yog Txoj Cai Ua Haujlwm Tseem Ceeb Ntawm Winding Resistance Tester?

Txoj Cai Ua Haujlwm Tseem Ceeb ntawm Winding Resistance Tester:
1.Kev siv DC tam sim no qis:Tus tester tsim cov DC tam sim no qis (feem ntau nyob rau hauv qhov ntau ntawm milliamps mus rau ob peb amps, nyob ntawm qhov loj thiab hom winding raug kuaj). Qhov tam sim no yog siv rau winding nyob rau hauv kev sim. Yog vim li cas siv DC tam sim no yog tias nws tsis tshua muaj kev cuam tshuam los ntawm inductive reactance, uas yuav yog ib qho tseem ceeb hauv kev ntsuas AC.

2. Ntsuas qhov Voltage poob:Raws li DC tam sim no ntws los ntawm winding, qhov voltage poob hla lub winding yog ntsuas. Raws li Ohm txoj cai lij choj (V=I × R), qhov hluav taws xob poob yog proportional rau qhov tsis kam ntawm winding thiab tam sim no dhau los ntawm nws.

3.Xaiv qhov Resistance:Qhov tsis kam ntawm winding yog xam los ntawm cov qauv:𝑅=V/I
Qhov twg:

R yog qhov tsis kam ntawm winding ( ntsuas hauv ohms),
Vyog qhov hluav taws xob poob thoob plaws qhov winding ( ntsuas hauv volts),
Iyog siv DC tam sim no ( ntsuas hauv amps).
4.Piv qhov ntsuas ntsuas:
Qhov ntsuas tsis kam yog muab piv rau cov chaw tsim khoom tshwj xeeb lossis cov ntaub ntawv keeb kwm tiv thaiv ntawm winding. Kev hloov pauv hauv kev tawm tsam tuaj yeem qhia txog teeb meem xws li:

Winding degradation vim overheating los yog laus,
Kev sib txuas xoob lossis corroded,
Shorts ntawm lem los yog coils,
Qhib circuits hauv winding,
Cov cua kub tsis sib xws lossis lwm yam teeb meem ua haujlwm.
5.Test Duration and Accuracy:
Qhov kev sim no feem ntau ua rau lub sijhawm luv luv (thib ob mus rau feeb), vim tias cua sov ntau dhau los ntawm DC tam sim no tuaj yeem ua rau muaj kev puas tsuaj rau cov khoom rhiab lossis rwb thaiv tsev. Winding resistance testers yog qhov tseeb thiab muaj peev xwm ntsuas qhov kev hloov pauv me me hauv milli-ohm ntau.

6. Kev them nyiaj kub:
Winding kuj yog qhov kub thiab txias. Thaum cov windings raug kuaj, lawv qhov kub thiab txias tuaj yeem cuam tshuam tus nqi tiv thaiv (piv txwv li kev tiv thaiv ntawm tooj liab, nce nrog kub). Ntau qhov kev ntsuas kev ua haujlwm siab heev muaj qhov tsis siv neeg qhov kub thiab txias los kho qhov kev nyeem ntawv tsis zoo rau tus qauv ntsuas kub (feem ntau 20 degree lossis 25 degree) los muab cov txiaj ntsig zoo dua thiab sib piv.

7.Multiple Winding Tests:
Nyob rau hauv cov ntaub ntawv ntawm motors los yog transformers nrog ntau windings (xws li, thawj thiab thib ob windings), lub tester yuav ntsuas qhov tsis kam ntawm txhua winding ib leeg. Tsis tas li ntawd, tus tester tuaj yeem kuaj xyuas qhov sib npaug ntawm cov windings nyob rau hauv rooj plaub uas siv ntau qhov sib npaug sib npaug.