Transformers Test

1 - Insulation Resistance Test

2 - Tig ratio Test

Siv los ntsuas qhov lem piv ntawm lub transformer (Primary thiab Secondary Windings.
Siv qhov voltage ntawm winding ces ntsuas qhov voltage induced nyob rau hauv lwm winding.
Qhov feem pua ntawm cov voltages yog qhov hloov pauv ntawm thawj thiab theem nrab windings.
Kev xeem raug.
Sab hnub tuaj ua.

3 - Winding Resistance Test

Siv los ntsuas qhov tsis kam ntawm transformer windings (primary thiab secondary).
Ua tiav siv LV DC qhov ntxiv rau Multimeter.

4 - Polarity Test

Ua los xyuas qhov polarity ntawm transformer windings.
Siv DC qhov chaw rau thawj zaug ces ntsuas qhov hluav taws xob theem nrab.
Polarity ntawm windings txiav txim siab raws li cov kev taw qhia ntawm induced voltage nyob rau hauv lub thib ob winding.
Yooj yim thiab ceev.
Tiv thaiv kev puas tsuaj ntawm transformer thaum lub sij hawm installation.

5 - Qhib Circuit Test

Tsis Load Losses.
Magnetizing Tam sim no.

Khaws qhov thib ob qhib circuited ces siv qhov voltage ntawm thawj winding, ces ntsuas tus thawj (tam sim no thiab voltage).
Muab xam (Tsis muaj-Load Losses & Magnetizing Current).
Txiav txim siab qhov sib npaug Circuit Court ces calc Efficiency thiab Regulation.

6 - Short Circuit Test

Tag Nrho Tam Sim No.
Transformer impedance.

Khaws qhov thib ob luv luv circuited ces siv voltage rau thawj winding, ces ntsuas tus thawj (tam sim no thiab voltage).
Muab xam (Full-Load Current & Impedance).
Txiav Winding Resistance.
Txiav txim siab qhov dej inductance.

7 - Sweep Frequency Response Analysis (SFRA)

Kev ntsuas tsis muaj kev puas tsuaj siv los kuaj xyuas cov kev hloov pauv hauv lub tshuab hluav taws xob hloov hluav taws xob.
Nws tuaj yeem ntes Winding Deformation lossis Shorted-Turns.
Nws ua rau kev ntsuam xyuas dav dav ntawm qhov kev hloov pauv hloov pauv.