Reactive Power Compensation Solution Rau Wuhan Mould Corporate

Ua ntej kev koom tes nrog peb, tus neeg siv khoom tshiab tau teeb tsa lub capacitors yuav tsum tau hloov hauv tsawg dua ob lub hlis vim muaj kev sib tsoo thiab txawm tias hluav taws kub.
Lub tuam txhab cov cuab yeej tsim khoom tseem ceeb suav nrog cov xuas nrig ntaus, CNC tshuab cuab yeej, thiab cov tshuab vuam me me, siv los ntawm 1250 kVA transformer. Nws cov reactive fais fab nyiaj them lub txee yog configured nrog: cuaj teev ntawm 60 kvar peb-theem capacitors (paired nrog 480V, 6% reactors) thiab rau poob lawm ntawm 30 kvar / 250V ib zaug-theem split-paired capacitors (6% reactors, 8%).

Kev ntsuam xyuas hluav taws xob tau nthuav tawm cov ntsiab lus hauv qab no:

3rd harmonic: 15%

5th harmonic: 10%

7th harmonic: 5%

Analysis xaus yog raws li nram no:

1.Qhov system yog dominated los ntawm 3rd harmonics, thaum lub hauv paus configured 6% reactors feem ntau yog tsim los rau 5th thiab 7th harmonics. Lawv tsis tuaj yeem txwv tsis pub muaj kev sib haum xeeb thib 3 thiab tej zaum yuav muaj kev pheej hmoo ua kom nrov lossis ua rau muaj suab nrov.

2.Lub punch presses nyob rau hauv cov khoom siv ntau lawm yog cuam tshuam loads, ua kom ceev load hloov thaum lub sij hawm ua hauj lwm. Thawj lub tsev txhab nyiaj capacitor xav tau kwv yees li 3 feeb rau kev tso tawm (tsim tshwj xeeb tuaj yeem txo qhov no mus rau 1 feeb), thiab cov contactors siv tsis tuaj yeem ua tau raws li qhov xav tau ceev ceev. Tsis tas li ntawd, lawv tsis muaj xoom- hla kev hloov pauv muaj peev xwm, uas yog ib qho ntawm cov laj thawj rau kev ua haujlwm tsis tu ncua ntawm capacitor.

3.Thaum lub kaw lus ua haujlwm ntawm tag nrho cov load (tam sim no ncav cuag 1500A), tag nrho cov capacitors yuav tsum tau nyob online. Qhov no tuaj yeem yooj yim ua rau capacitor overload, thiab lawv qhov ntsuas qis qis dua ntxiv ua rau muaj kev pheej hmoo ua haujlwm.

Raws li kev soj ntsuam saum toj no thiab txiav txim siab qhov xav tau ntawm kev siv hluav taws xob tiag tiag ntawm cov neeg siv khoom tsim khoom, Jinneng qhia txogcov kev daws teeb meem hauv qab no:

1.Los daws qhov teeb meem thib 3, nws raug pom zoo los hloov covreactorsnrog 14% reactance hom, txais kev teeb tsa ntawm 525V peb-theem kev them nyiaj thiab 280V ib zaug-theem faib nyiaj them rau kom muaj txiaj ntsig zoo rau 3rd harmonic.

2.To lis cov kev hloov pauv ceev thiab hloov cov kev sib tw, nws raug pom zoo kom hloov cov contactors nrogthyristor hloovmuaj peev xwm ntawm xoom- hla kev hloov mus ua kom tau raws li cov lus teb ceev ceev ntawm kev cuam tshuam.

3.To txo ​​overvoltage thiab overload txaus ntshai, nws yog pom zoo kom hloov lubcapacitorlub tsev txhab nyiaj rau Jinneng's 790 kvar zog capacitor tov. Qhov no suav nrog 550 kvar rau kev them nyiaj ntau thiab 240 kvar rau kev sib faib nyiaj, tag nrho siv 525V voltage theem nrog 14% reactance, tailored kom phim lub reactive zog them nyiaj xav tau nyob rau hauv ntau ntau theem ntawm lub enterprise.