Zoo

Qhov sib txawv ntawm HVC thiab lwm yam High Voltage capacitors.

Zoo; Kem yuav feem ntau xav thiab feem ntau kev txhawj xeeb los ntawm loj newfriends!
Nram qab no yog loj piav rau ib qho tseem ceeb kev tsis:

Rwb thaiv tsev Kujlos yog IR raws li lub npe qhia yog cov kuj oftheinsulation.IR ua tau
tiv thaiv hluav taws xob khoom ntawm luv luv circuit.IR valuesare feem ntau heev nyob rau hauv therange ntawm Mega-ohm los yog Mohm.

Kub Coefficientnyob ntawm seb lub dielectric isClass 1orClass 2. Ib tug tej hub
capacitor (tshwj xeeb tshaj yog cov chav kawm ntawv 2) feem ntau muaj highdissipation tau, siab zaus coefficient ofdissipation.

Qhov zoo tshaj yuav yaj (tan δ): Los yog DF yog txhais raws li tus piv ntawm cov ESR thiab capacitive reactance.It yog lub
dissipation tau yog alsoknown li cov tangent ntawm cov poob kaum sab xis thiab yog feem ntau qhia nyob rau hauv feem pua.
Pom tau hais tias cov qauv qhia lub dissipation tau ntawm cov frequenciestypically 120Hz rau Txhuas
electrolytic thiab Tantalum capacitors thaum rau zaj duab xis capacitors yog 1 kHzand 1 MHz rau tej hub capacitors.

Ib nrab tawm (PD): Yog ib tug hluav taws xob paug los yog muaj tias bridges ib feem me me ntawm cov rwb thaiv tsev
ntawm ob txoj kev electrodes.PD yuav tshwm sim tom tej taw tes nyob rau hauv lub rwb thaiv tsev system, qhov twg lub fais teb
lub dag lub zog tshaj lub neej puas lub dag lub zog ntawm feem ntawm lub insulating material.PD yuav tshwm sim nyob rau hauv voids hauv
khoom rwb thaiv tsev, nyob rau qhov chaw ntawm insulating cov ntaub ntawv uas vim kab mob los yog irregularities, tsis pub dhau roj npuas
nyob rau hauv cov kua rwb thaiv tsev los yog ib ncig ib electrode nyob rau hauv roj (corona ua si).

Dielectric Khoom siv:

Piv txwv li, ib tug Z5U capacitor yuav ua hauj lwm los ntawm +10 ° C rau +85 ° C nrog lub zog hloov pauv ntawm feem ntau + 22% mus rau 56%. Ib lub tshuab hluav taws xob X7R yuav khiav lag luam los ntawm −55 ° C rau +125 ° C nrog lub zog hloov pauv ntawm feem ntau ± 15% .HVC's N4700 Dielectric Khoom siv: zoo ib yam li lwm lub tuam txhab, electroceramicsdetermine qhov tseem ceeb ntawm lub kaus mom. HVC siv sijhawm li 3 xyoos thiab ntau lab daus las rau kev tsim qauv strontium titanate, uas yog N4700 hom.ThisN4700 cov khoom siv muab cov khoom siv hluav taws xob zoo heev, qhov ua tau zoo ntawm kev rwb thaiv tsev loj thiab tinydissipation factor thiab super lub neej ntev txog 20 xyoo.

Kev Specification Piv:
Txhawm rau qhia cov neeg siv khoom HVC cov khoom hauv kev sib sib zog nqus, peb qhia HVC cov cuab yeej kev cai piv nrog cov sib txawv uas twb muaj lawm
hom ntawm cov teb chaws Europe thiab qaum teb Amercia.

Amercian Hom E *****
Lawv tsuas yog ua cov kaus mom hlau disc, muab tib yam rau HVC dielectric cov khoom siv X5F.
dissipation Factor rau X5F yog 1.5%;
HVC X5F tivthaiv yuav ua tau dissipation Factor tus nqi rau 1%.

Maximun Voltage qhia rau catalog 30Kv, 2200pf;
HVC cov yeeb yam ntawm cov khoom lag luam (cov khoom tsis tu ncua) 50Kv, 3300pf.

Flash Xeem 130% ntawm Nyob Voltage, zoo li 30Kv, Nyem xeem yuav 40KvDc.
HVC lub zog dielectric tuaj yeem yog 150% rau 200%, txhais tau tias thaum hais cov xov ntsuas hluav taws xob yog 30Kv, kev kuaj hluav taws xob tuaj yeem tiv taus
45Kv rau 60KvDc.

Kub yam ntxwv: (NP0 rau Z5U)
HVC tus cwj pwm kub tsis txaus siab: (N4700, Y5T, Y5U)

European Hom G ******:
Theyoffer tsuas doorknob capacitor.
10Kv max capacitance 8000pf, thaum HVC tau tib yam 8000pf, tib N4700 hom ntaub ntawv;
20kv max capacitance 4000pf, thaum HVC yuav ua tau 10000pf;
30kv max capacitance 2700pf, thaum HVC yuav ua tau 3300pf;
40kv max capacitance 2000pf, thaum HVC tau tib yam 2000pf;
50kv max capacitance 1700pf, thaum HVC yuav ua tau 15000pf (Y5V) thiab 5000pf (Y5T).

G ******: siv N4700 khoom, dissipation Factor yuav 0.3% max, thaum HVC yeej ib txwm nyob ib ncig ntawm 0.1% thiab yeej tsis siab
tshaj 0.2%
G ******: Rwb Thaiv Tsev kuj 10,000mOhm (N4700) min, thaum HVC feem ntau lub sij hawm tau yuav 200,000mOhm (N4700) min.

American Nrov Hom H **:
Theyoffer xwb qhov rooj pob qhov rooj capacitor, wildly siv nyob rau hauv North Amercian ua lag luam.

Tsis paub lub dielectric khoom, dissipation tshaj tus nqi yuav max 0.5%, thaum HVC majorly siv N4700 dielectric
khoom, dissipation tshaj yuav tsuas 0.1% mus rau 0.2%, feem ntau lub sij hawm 0.1% xwb.

North American Nto moo Hom H ***:
Lawv lug muag nyob rau hauv NorthAmerica, Russia, Nyiv etc.offer ob hub disccapacitor anddoor pob qhov rooj capacitor.
Rau tej hub disc lub kaus mom, tsuas Y5P, Y5U dieletric materialavailable, cov neeg muaj tsis yog li ntawd zoo kub coefficient, thaum
HVC kev N4700 rau tej hub disc kaus mom.

Siab tshaj plaws voltage capacitanceavailability, H *** qhia tau tias yog 20Kv 4700pf (Y5U), thaum HVC kev 50KV 3300pf (Y5T).
Isulation tsis kam yog min 1000mOhm, thaum HVC IR tuaj yeem yog 10 000mOhm
Kev rho tawm yog 5% max (Y5P), thaum HVC qhov siab DF yog 2% (Y5U, Y5V)

European Hom M *****:
Ntiaj teb nto moo lub tuam txhab, kev doorknob capacitorin txawv ntau yam, dieletric khoom nyob rau hauv Y5U andN4700 theem.
Lub npe loj no cov khoom muaj kev txhawj xeeb rau ib nrab ntawm dischargevalue, lawv cov khoom tuaj yeem yog pc tsawg kawg ntawm kev ntaus nqi
AC voltage, Thaum HVC muaj nearlly zoo tib yam theem ntawm lowpC.
Ib feem Kev xa tawm tus nqi beN4700 cov khoom nrog Rwb thaiv tsev Lub zog> = 1011ohm, Thaum HVC tus kheej N4700 cov khoom siv yog ob npaug, min 2x1011ohm

Japanese ntiaj teb nto moo Hom T **:
Qhov no yog chaw tsim tshuaj paus ntiaj teb no hauv chav kawm ntawv passive tivthaiv chaw tsim tshuaj paus, nrog ib tug heev heev txawv ntau lawm
tsob nroj inthe ntiaj teb no, lawv kuj tsim qhov rooj knobcapacitor, thiab txua lawv tus kheej tej hub material.dieletric khoom
yuav Z5T, Y5P thiabY5S, txhua tus tsuas yog seeb kub coefficients, lawv tsis muaj N4700material qib, uas
muaj lub siab zaus thiab siab dielectric zog muaj nuj nqi. Txawm moreY5S yog ib tug cov hom ntawm cov khoom tsis PB free.
Tab sis ua raws li ROHS “EU Txoj Kev Txoj Cai 2002/95 / EC, cov hmoov txhuas, cadmium, mercury, hexavalent chromium, thiab tshwj xeeb
bromine-based nplaim taws ntev qeeb, PBB thiab PBDE, tsis tau siv, tsuas yog zam daim ntawv thov kev zam "forhigh
daim ntawv thov hluav taws xob, tsis tas yuav yog cov hlau lead dawb.Tiam sis tsis muaj leadfreeitem tsis tuaj yeem ua kom zoo txaus los ntawm qee tus neeg mob hnyav.Biggest
voltage capacitance tus nqi tsuas 50kv 2100pf, tab sis cansee 20kvAC 1080p, qhov no 20kvAC yuav ua tau roughly sib npaug zos to80kvDC.
Thaum HVC tam sim no tau make150kvDc (50kvAC), 800pf yam khoom, peb HVC muaj higherproduction abilityfor ntau kawg
application.Insulation Resistance yuav 100,000mOhm min, thaum HVC max IR yog ob npaug, min hauv 200,000mOhm.

Nqe Sib Piv rau HVC thiab Lwm tus:
Los ntawm saum toj no peb paub HVC qib siab zoo yog siab heev, peb nyob ntawm cov muaj npe zoo levelof ntiaj teb nto moo hom
Vishay, TDK, Murata, Morganetc ... Thiab peb paub meej tias 20% txog 30% tus nqi qis dua nyob rau hauv dav dav.

Leadtime Sib Piv rau HVC thiab Lwm tus:
HVC tus qauv ntau lawm ua lub sijhawm ua qhov rooj pob qhov rooj capacitor yog 60 hnub (8 lub lis piam), thaum nquag hom hom xav tau 14 lub lis piam
Yooj Yim Sib Piv rau HVC thiab Lwm tus:
HVC lub capacitor kuj tseem muaj qhov ua kom yooj yim hom tivthaiv, zoo li GIS (GasInsulated Switchgear) cov neeg siv khoom, lawv feem ntau me dua
loj siab cap, peb offernon-encapsulation hau kom tau raws li strictrequirement. Whileother manufacturernot saj zawg zog likeus, los yog nug rau heev loj MOQ.