Txoj haujlwm ntawm kev ntxiv capital thiab inductance rau tsawg - voltage nyiaj fais fab hluav taws xob capacitors

Tsawg {- voltage them lub zog capacitors muaj txiaj ntsig zoo ntawm lub zog hluav taws xob ntawm lub zog hluav taws xob thiab txhim kho qhov zoo ntawm lub zog hluav taws xob thaum lub sijhawm ua haujlwm. Hauv kev them nyiaj fais fab xwm txheej, cov txheej txheem ntawm kev ntxiv reactors rau tsawg- voltage them lub zog capacitors feem ntau siv. Lub hom phiaj ntawm qhov no yog dab tsi?

Ⅰ. Harmonic Supression thiab Kev Tiv Thaiv Kev Tiv Thaiv

Nyob rau hauv Circuit Court ntawm Qis - voltage them lub zog capacitors, lub inductor txuas nrog hauv cov koob. Nws lub luag haujlwm tseem ceeb yog los rau kev sib haum xeeb kev sib haum xeeb. Thaum lub zog hluav taws xob muaj kev sib haum xeeb nrog cov yam ntxwv xws li 5th thiab 7 xaj:

1. Lim cov hauv paus ntsiab lus: los ntawm kev xaiv reactors nrog lub impedance ntawm 7% lossis 14%, tshwj xeeb harmonic cov dej num ntawm cov nquag muaj peev xwm.
2. Caplectionamely txo cov harmonic tam sim no ntws los ntawm tus capacitor (THD tuaj yeem raug txo los ntawm 15% rau hauv qab 5%)
3. Kev tswj tau qhov kev poob qis ntxiv los ntawm kev sib raug zoo, yog li txo qhov kub ntawm lub capacitor los ntawm 20-30 degrees Celsius.

Ii. Lim tawm hloov overcurrent

Thaum qhov qis - voltage them hluav taws xob capacitor yog muab tso rau hauv kev ua haujlwm tam sim no uas yog 20 txog 50 npaug ntawm Rated tam sim no yuav tsim tawm:

1. Reactor impedance: nce cov kab ke hluav taws xob cov nqi los txwv qhov hauv cov kab hauv 5 txog 8 zaug qhov ntsuas uas muaj nyob tam sim no.
2. Cov Khoom Siv Tiv Thaiv: Tiv thaiv kev ua txhaum xws li melting thiab vuam ntawm hloov cov neeg, kev puas tsuaj rau cov txheej kub ntawm qhov kawg ntawm lub capacitors, thiab lwm yam.
3. Kev Cuam Tshuam: Txo cov kev ntxhov siab tam sim no rau cov grid voltage (voltage Fonupage hloov ntawm 2%)

III. Kev tiv thaiv ntawm kev hloov kho parallel

Qhov qis - voltage them lub zog capacitor thiab cov phiaj xwm kev cai lij choj yuav tsim cov resonant Circuit Court:

1. Kev Tiv Thaiv Kev Tiv Thaiv: Cov Reactor hloov cov kab ke ntawm cov kab ke rov qab, zam dhau4.7 - 6.3 haj} kev sib haum xeeb.
2. Kev tsim qauv parameter: precisely xam cov ntsuas reactance raws cov kab ke luv- kev ua yuam kev (yuam kev tsawg dua lossis sib npaug ntawm ± 2%)
3. Kev Nyab Xeeb Ua Kom Zoo: Zam kev resonance overvoltage (uas tuaj yeem txwv tsis pub dhau ntawm 1.2un)

IV. Txhim kho cov nyiaj raug mob cuam tshuam

Txhim kho cov tshuaj reactors tuaj yeem txhim kho kev ua haujlwm ntawm qis {{voltage them zog capacitors.

1. Cov kev cai voltage: txhim kho voltage ruaj khov (qhov kev hloov pauv tau txo los ntawm 5% rau 2%)
2. Txuas lub neej: txo kev ntxhov siab Harmonic, thiab lub neej muaj peev xwm muaj peev xwm tau nce ntawm 2-3 zaug.
3. Kev txawj ntse tswj: ua ke nrog kev them nyiaj rau kev sib xyaw ua ke, nws ua rau millisecond {{}}} qib teb.