Y capacitor qhia

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Y capacitor qhia

Kev nyab xeeb capacitors yog siv rau hauv cov ntawv thov uas lub capacitor tsis ua rau hluav taws xob poob siab thiab tsis ua rau muaj kev nyab xeeb ntawm tus kheej.

Nws suav nrog ob hom X capacitor thiab Y capacitor. Lub x capacitor yog lub capacitor uas txuas ntawm ob kab ntawm cov kab hluav taws xob (LN). Feem ntau, siv cov yeeb yaj kiab hlau capacitor; Y capacitor txuas nrog ntawm ob kab ntawm cov kab hluav taws xob thiab hauv av (LE, NE) capacitor feem ntau muaj nyob rau hauv khub. Raws li kev txwv ntawm cov dej xau tam sim no, tus nqi ntawm Y capacitor yuav tsum tsis txhob loj dhau. Feem ntau, X capacitor yog qib uF, thiab Y capacitor yog nF qib. X capacitor suppresses txawv hom cuam tshuam thiab Y capacitor suppresses hom kev cuam tshuam.

Raws li IEC 60384-14, ntim tau muab faib ua X thiab Y capacitors:

1. X capacitor yog lub capacitor uas txuas ntawm LN.

2. Lub Y capacitor yog lub capacitor uas txuas ntawm LG / NG.

(L=Nyob, N=Naught, G=Ground)

X capacitor tau muab faib ua X1, X2, thiab X3. Qhov sib txawv tseem ceeb yog:

1. X1 rated voltage Tsawg dua los yog sib npaug rau 1000VAC, qhov hluav taws xob tsis zoo yog ntau dua 2.5 kV, tsawg dua lossis sib npaug li 4 kV,

2. X2 siab siab yog tsawg dua los yog sib npaug 2.5 kV,

3. X3 siab siab yog tsawg dua los yog sib npaug rau 1.2 kV

Y capacitor tau muab faib ua Y1, Y2, Y3, thiab Y4. Qhov sib txawv tseem ceeb yog:

1. Y1 ntsuas voltage Tsawg dua los yog sib npaug rau 500VAC, ncov voltage yog sib npaug rau 8 kV, sim voltage 4000VAC

2. Y2 ntsuas voltage Ntau dua lossis sib npaug rau 150VAC, Tsawg dua lossis sib npaug rau 500VAC, qhov siab tshaj plaws voltage yog sib npaug rau 5 kV, kev sim ntsuas voltage

1500VAC,

3. Y3 tiv taus siab n / a thiab tau hloov.

4. Y4 siab siab tshaj 2.5 kV

X, Y capacitor yog kev ruaj ntseg capacitor. X-capacitor nruab nrab ntawm kab nyob thiab Y-capacitor nruab nrab ntawm kab nyob thiab hauv av.

Lawv yog siv nyob rau hauv lub hwj chim mov lim los lim lub hwj chim mov thiab lim hom hom (Y capacitor) thiab txawv hom (X capacitor) cuam tshuam.

1. Capacitor rau suppressing fais fab mov electromagnetic cuam tshuam

Thaum cov khoom siv hluav taws xob siv hluav taws xob siv hluav taws xob kom tshem tawm cov suab nrov, tsis tsuas yog cov hluav taws xob ib txwm muaj, tab sis kuj tseem muaj qhov txawv txav ntawm cov mem tes voltages (xws li xob laim) yuav tsum tau txiav txim siab, uas tuaj yeem ua rau lub capacitor haus luam yeeb lossis ignite. Yog li ntawd, cov qauv kev nyab xeeb rau cov kab hluav taws xob hlais tau tswj hwm nruj hauv ntau lub teb chaws, yog li nws yuav tsum tau siv cov ntawv pov thawj kev nyab xeeb.

2. DC capacitor tsis raug tso cai siv los ua cov kab hluav taws xob hla:

Capacitors rau X2 chav kawm kev txwv hluav taws xob hluav taws xob cuam tshuam yuav tsum tsim nyog rau cov ntawv thov uas lub capacitor tsis ua rau muaj kev phom sij thaum lub capacitor tsis ua haujlwm. Piv txwv li, cov khoom siv hluav taws xob tuaj yeem txuas nrog cov kab thiab tuaj yeem tiv taus qhov hluav taws xob ntawm 2.5kV.

Cov capacitors rau Y2 chav kawm kev tiv thaiv hluav taws xob hluav taws xob cuam tshuam yuav tsum tau siv rau rooj plaub uas lub capacitor tsis ua rau muaj kev phom sij thaum lub capacitor tsis ua haujlwm. Thaum cov khoom siv hluav taws xob txuas nrog hla txoj kab, nws tuaj yeem tiv taus 5kV mem tes voltage poob siab yam tsis ua kom tawg.