QUALITY khoeli e tla ba le thahasello e kholo 'me haholo-holo e amehe ka bareki ba bacha ba bacha!
Lintlha tse latelang ke tlhaloso e kholo ea litekanyetso tsa bohlokoa tsa tekanyetso:
Ho hanyetsa ho kenya letsoho kapa IR e le lebitso le bontšang ho hanyetsa
ho kwahela. IR e hlile e sireletsa lisebelisoa tsa motlakase ho potoloho e khuts'oane. Litekanyetso tsa IR
hangata li phahame haholo Mega-ohm kapa Mohm.
Mocheso o kopane ho latela hore na dielectric ke Sehlopha sa 1 kapa Sehlopha sa 2. A ceramic
capacitor (haholo-holo sehlopha sa 2) hangata e na le sesosa se phahameng sa ho qhala, sekhahla se phahameng sa makhetlo a ho qhala.
Sesosa sa ho qhalana (tan δ):kapa DF e hlalosoa e le karolelano ea ESR le reactance capacitive. Ke file ea
dissipation factor e boetse e tsejoa e le pherese ea lehlakore la tahlehelo mme hangata e hlahisoa ka liperesente.
Litekanyetso tse tsebahalang li bonts'a sesosa sa ho qhekella maemong a ikhethang hangata 120Hz ea Aluminium
li-capacitor tsa motlakase le tsa Tantalum ha li-capacitor tsa lifilimi ke 1 kHz le 1 MHz bakeng sa ceramic capacitors.
Phallo e Ntle (PD): ke ho qhalla ha motlakase kapa tlhase e phunyeletsang karoloana e nyenyane ea ho koala
pakeng tsa tse peli tse tsamaisang electrode.PD e ka etsahala neng kapa neng ho tsamaiso ea motlakase, moo tšimo ea motlakase
matla a fetang matla a ho senyeha a karolo eo ea lintho tse thibelang boloetse.PD e ka hlaha kahare kahare
ho tiisa ka thata, hohle holim'a boitsebiso ba ho itšireletsa ka lebaka la ts'ilafalo kapa lits'ebeletso tse sa lokelang, ka har'a lik'hemik'hale tsa khase
ho thibela metsi kapa ho potoloha electrode ka khase (corona ts'ebetsong).
Boitsebiso ba Dielectric:
|
Lengolo (tefo e tlaase) |
Digit (phahameng tempem) |
Lengolo (fetola) |
|
X = -55 ° C (-67 ° F) |
2 = +45 ° C (+113 ° F) |
E = ± 4.7% |
|
Y = -30 ° C (-22 ° F) |
4 = +65 ° C (+149 ° F) |
F = ± 7.5% |
|
Z = +10 ° C (+50 ° F) |
5 = +85 ° C (+185 ° F) |
P = ± 10% |
|
|
6 = + 105 ° C (+ 221 ° F) |
R = ± 15% |
|
|
7 = + 125 ° C (+ 257 ° F) |
S = ± 22% |
|
|
8 = + 150 ° C (+ 302 ° F) |
T = +22 ho -33% |
|
|
|
U = +22 ho -56% |
|
|
|
V = +22 ho -82% |
Mohlala, Z5U capacitor e tla sebetsa ho tloha ho +10 ° C ho isa ho + 85 ° C ka phetoho ea bokhoni ba bonyane + 22% ho ea ho -56%. X7R capacitor e tla sebetsa ho tloha ho ~ 55 ° C ho isa ho +125 ° C ka phetoho ea bokhoni ba boholo ba ± 15%
Boitsebiso ba Dielectric ea HVC ea N4700: e ts'oanang le k'hamphani e 'ngoe, li-electroceramics li khetholla tšobotsi e kholo
ea likatiba. HVC e qeta lilemo tse 3 le limilione tsa $ ho iqapela titanate ea patenteng ea patente, e leng mofuta oa N4700.
Lisebelisoa tsa N4700 li fana ka tšobotsi e ntle haholo ea maqhubu a phahameng, khanyetso e ntle haholo ea ts'ireletso le ts'enyo e nyane
ntlha le bophelo bo bolelele ba nako e telele ho fihlela lilemo tse 20.
Tlhahlobo ea Tlhahlobo ea Tlhahlobo:
Ho tsebisa bareki ntho ea HVC ka botebo, re bonts'a litlhaloso tsa tekheniki ea HVC ha li bapisoa le tse fapaneng tse teng
mochine o tsoang Europe le North Amercia.
Amercian Brand E *****
fana feela ka li-cap tsa disc tsa ceramic, e fana ka se ts'oanang le ho li-dielectric material tsa HVC X5F.
Sepheo sa ho felisoa ha X5F ke 1.5%;
Karolo ea X5F ea HVC e ka ba boleng ba Dissipation Factor ho 1%.
Boholo ba Voltage bo bontšang lethathamong la 30Kv, 2200pf;
Lenaneo la HVC lenaneng (tlhahiso e tloaelehileng) 50Kv, 3300pf.
Tlhahlobo ea Flash Flash 130% ea Rated Voltage, joaloka 30Kv, tlhahlobo ea flash e be 40KvDc.
Matla a dielectric a HVC e ka ba 150% ho isa ho 200%, ho bolelang hore ha a re matla a lekantsoeng e be 30Kv, liteko tsa flash li ka mamella
45Kv ho 60KvDc.
Litšobotsi tsa mocheso: (NP0 ho Z5U)
Mekhoa e metle ea HVC :(N4700, Y5T, Y5U)
European Brand G ******:
fana ka mochine o motlakase feela.
10Kv max capacitance 8000pf, ha HVC e le 8000pf e tšoanang, lintho tse tšoanang tsa N4700;
20kv max capacitance 4000pf, ha HVC e ka ba 10000pf;
30kv max capacitance 2700pf, ha HVC e ka ba 3300pf;
40kv max capacitance 2000pf, ha HVC e ntse e le 2000pf;
50kv max capacitance 1700pf, ha HVC e ka ba 15000pf (Y5V) le 5000pf (Y5T).
G ******:sebelisa N4700 lisebelisoa, Ntho ea ho qhalaha e be 0.3% max, ha HVC e lula e le haufi le 0.1% le ho se mohla e phahameng
ho feta 0.2%
G ******:Ho itšireletsa ha 10,000mOhm (N4700) min, ha nako ea HVC e ka ba 200,000mOhm (N4700) min.
American Brand Brand H **:
fane ka monyako oa capacitor feela, ho sebelisoa hampe marakeng oa Amerika Leboea.
Ha u tsebe thepa ea dielectric, sekhahla sa bohlokoa sa dissipation se ka ba max 0.5%, ha HVC e sebelisa boholo ba dielectric N4700
lisebelisoa, sekhahla sa ts'oaetso e ka ba 0.1% ho 0.2%, boholo ba nako 0.1% feela.
North American Famous Brand H **:
e rekisoang haholo Amerika Leboea, Russia, Japane jj e fana ka diski tsa ceramic ka bobeli
capacitor le kotola ea monyako.
Bakeng sa likatiba tsa ceramic disc, ke feela Y5P, Y5U dieletric tse fumanehang, tse sa faneng ka mocheso o lekaneng oa mocheso, ha
HVC e fana ka N4700 bakeng sa li-disc caps.
Ho fumaneha ha motlakase o phahameng ka ho fetisisa, H *** show ke 20Kv 4700pf (Y5U), ha HVC e fana ka 50KV 3300pf (Y5T).
Khanyetso ea Isulation ke min 1000mOhm, ha HVC's IR e ka ba 10 000mOhm
Sepheo sa ho lahla ke 5% max (Y5P), ha DF ea HVC e le 2% (Y5U, Y5V)
European Brand M *****:
Khamphani e tsebahalang lefatšeng ka bophara, fana ka knob capacitor ea mamati ka mefuta e fapaneng, lisebelisoa tsa dieletric ho Y5U le
Sehlahisoa sa lebitso lena le leholo se amehile haholo ka boleng ba ho ntša karoloana, ntho ea bona e ka ba tlase haholo ho PC
Voltage ea AC, Ha HVC e fana ka boemo bo tšoanang ba boleng bo tlase ba pC e tlase.
Boleng ba lero la Ts'ebetso bo tla ba <5pC @ AC e lekantsoeVoltage. Ha HVC e ka tšoana <5pC maemong a tšoanang.
Lisebelisoa tsa N4700 tse nang le Khanyetso ea Insulation> = 1011ohm, Ha thepa ea N4700 ea HVC e le habeli, min 2x1011ohm
Japanese World Famous Brand T **:
moetsi enoa ke setsi sa lefatše sa moetsi oa motsoako oa lihlopha, o nang le lihlahisoa tse fapaneng haholo
semela lefats'eng, li boetse li hlahisa monyako oa li-knob capacitor, 'me ba iqapela thepa ea bona ea letsopa
e be Z5T, Y5P le Y5S, tsena kaofela ke li-coefficients tsa mocheso oa soso feela, ha li na boemo ba N4700, boo
fana ka ts'ebetso e phahameng ea maqhubu le matla a phahameng a dielectric. Le Y5S le ho feta ke mefuta ea lisebelisoa eseng PB mahala.
Empa ikobeleRoHS “Tataiso ea EU 2002 / 95 / EC, lead, cadmium, mercury, hexavalent chromium, le ho toba
li-flame-ignored flame retardants, PBB le PBDE,ha e e-s'o sebelisetsoe, haese bakeng sa lits'ebetso tse hlokang thuso”Bakeng sa hodimo
Ts'ebeliso ea matla a motlakase, ha e hloke ho etelloa pele mahala Empa ha e etelle pele ntho e sa lefelloeng e ke ke ea amoheloa ke moreki ea tebileng. Kholo ka ho fetisisa
sekhahla sa voltage capacitance ke 50kv 2100pf feela, empa se khona ho bona 20kvAC 1080p, 20kvAC ena e ka lekana le 80kvDC.
Ha HVC e se e khona ho etsa 150kvDc (50kvAC), ntho ea 800pf, rona ba HVC re na le bokhoni bo phahameng ba tlhahiso bakeng sa ts'ebeliso e phahameng.
Khanyetso ea Insulation e be 100,000mOhm min, ha HVC's max IR e habeli, min ho 200,000mOhm.
Ho bapisoa ha theko ea HVC le ba bang:
Ho tloha kaholimo rea tseba hore boemo ba boleng ba HVC bo holimo haholo, re har'a maemo a tšoanang a boleng ba lebitso le tsebahalang lefatšeng
Vishay, TDK, Murata, Morgan joalo-joalo… 'Me re na le bonnete ba hore ka 20% ho isa ho 30% theko e tlase ka kakaretso.
Tšoantšiso ea pele ea li-HVC le tse ling:
Nako e etelletsoeng pele ea tlhahiso ea HVC bakeng sa kotopo ea mamati e ka ba matsatsi a 60 (libeke tse 8), ha hangata lihlahisoa tse holimo li hloka
Libeke tse 14.
Ho ipapisa le ho ba le botsitso bakeng sa HVC le ba bang:
Capacitor ea HVC e boetse e fana ka mofuta oa mofuta o feto-fetohang, joalo ka moreki oa GIS (Gas Insulated switchgear)
hangata hloka boholo bo nyane ba cap, e phahameng, re offernon-encapsulation cap, ho fihlela tlhokahalo e thata. Ha a ntse a
moetsi e mong ha a tenyetsehe joaloka rona, kapa o kopa MOQ e kholo haholo.
