Dab tsi yog qhov kev ntsuas impulse ntawm transformer?

Transformer Impulse Test yog qhov siab -voltage dielectric xeem ua los ntsuam xyuas lub zog rwb thaiv tsev ntawm lub transformer tiv thaiv overvoltages, xws li cov tshwm sim los ntawm xob laim ntaus los yog hloov surges nyob rau hauv lub hwj chim system.

Lub hom phiaj

Txhawm rau kom ntseeg tau tias lub tshuab hluav taws xob rwb thaiv tsev tuaj yeem tiv taus qhov hluav taws xob impulse uas yuav tshwm sim thaum nws lub neej ua haujlwm yam tsis ua haujlwm.

Cov txheej txheem xeem

Txheem Impulse Waveform
Tus qauv hluav taws xob impulse voltage (piv txwv li, 1.2/50 µs nthwv dej: lub sijhawm nce 1.2 µs, lwj mus rau 50% hauv 50 µs) yog tsim los ntawm lub tshuab hluav taws xob impulse thiab siv rau txhua qhov winding davhlau ya nyob twg, ib zaug ib zaug.

Qib xeem
Qhov ntsuas hluav taws xob yog txiav txim siab los ntawm lub tshuab hluav taws xob ntsuas hluav taws xob thiab cov chav kawm rwb thaiv tsev (raws li cov qauv zoo li IEC 60076-3 lossis IEEE C57.12.00).

Daim ntawv thov

Tag nrho nthwv dej impulse: Siv los txheeb xyuas qhov yooj yim rwb thaiv tsev lub zog.

Chopped yoj impulse: Simulates xob laim tawm tsam nrog kev sib tsoo tam sim ntawd, kuaj kev rwb thaiv tsev nyob rau hauv qhov kev hloov pauv siab.

Pem hauv ntej- ntawm-wave impulse: Kev ntsuas rwb thaiv tsev teb rau qhov nce nrawm heev.

Saib xyuas
Qhov kev xeem raug suav tias dhau yog:

Tsis tas li ntawd poob rau hauv qhov ntsuas hluav taws xob (xws li rwb thaiv tsev tawg).

Kev sib piv ntawm kev siv impulse nthwv dej thiab hloov nthwv dej ( ntsuas hla lwm qhov windings lossis qhov chaw) qhia tias tsis muaj qhov sib txawv tseem ceeb.

Tshaj tawm - kuaj lub zog zaus thiab hloov pauv qhov ntsuas tsis pom qhov hloov pauv.

Vim Li Cas Nws Tseem Ceeb

Kev tiv thaiv xob laim: Paub meej tias lub tshuab hloov pauv tuaj yeem muaj sia nyob ntawm xob laim -vim cov surges.

Rwb thaiv tsev kev sib koom ua ke: Ua kom cov rwb thaiv tsev sib tw ua ke tiv thaiv qib.

Tsim validation: Tshawb xyuas qhov tsis muaj zog hauv cov rwb thaiv tsev loj, tig, lossis cov bushings ua ntej kev pabcuam.

Kev lag luam Standards

IEC 60076-3: Fais fab transformers - Rwb thaiv tsev theem thiab dielectric xeem

IEEE C57.12.00: Cov kev cai dav dav rau cov kua dej- raus dej faib, lub zog, thiab tswj cov hloov pauv.

GB/T 1094.4 (Tuam Tshoj): Zoo ib yam li rwb thaiv tsev thiab kev xeem yuav tsum tau.

Nyob rau hauv cov ntsiab lus, qhov kev ntsuam xyuas impulse yog ib yam tseem ceeb xeem (feem ntau ua nyob rau hauv ib lub chaw soj nstuam ntawm prototype los yog cov qauv units) kom validate lub dielectric robustness ntawm ib tug transformer lub rwb thaiv tsev system tiv thaiv high -voltage transients.