Zvakashata zve Direct Current (DC) Testing
(1) Kunze kwekunge pasina capacitance pachinhu chakayerwa, voltage yekuyedza inofanira kutanga kubva pa "zero" uye ichisimuka zvishoma nezvishoma kudzivirira yakawandisa kuchaja ikozvino.Iyo yakawedzerwa voltage zvakare yakaderera.Kana iyo yekuchaja yakakurisa, inozokonzeresa kusatongwa nemuongorori uye kuita kuti bvunzo mhedzisiro.
(2) Sezvo iyo DC inomira voltage bvunzo ichachaja chinhu chiri mukuyedzwa, mushure mekuyedzwa, chinhu chiri mukuyedzwa chinofanira kuburitswa chisati chaenda kune chinhanho chinotevera.
(3) Kusiyana neiyo AC bvunzo, iyo DC inomira voltage bvunzo inogona chete kuedzwa ine imwechete polarity.Kana chigadzirwa chacho chichizoshandiswa pasi pe AC voltage, kusakosha uku kunofanirwa kutariswa.Ichi zvakare chikonzero nei vazhinji vanochengetedza kuchengetedza vachikurudzira kushandisa iyo AC inomira voltage bvunzo.
(4) Munguva yeAAC inomira bvunzo yemagetsi, kukosha kwepamusoro kwevoltage i1.4 nguva kukosha kunoratidzwa nemamita yemagetsi, isingagone kuratidzwa neyakajairwa magetsi mita, uye zvakare haigone kuwanikwa neDC inomira voltage test.Naizvozvo, mitemo yakawanda yekuchengetedza inoda kuti kana DC inomira voltage test ikashandiswa, iyo test voltage inofanirwa kuwedzerwa kune yakaenzana kukosha.
Mushure mekunge DC inomira bvunzo yemagetsi yapedzwa, kana chinhu chiri mukuyedzwa chisina kuburitswa, zviri nyore kukonzera kuvhunduka kwemagetsi kune anoshanda;ese edu DC anomira voltage testers ane kukurumidza kuburitsa basa re 0.2s.Mushure mekunge iyo DC inomira voltage bvunzo yapedzwa, iyo tester Inogona kuburitsa otomatiki magetsi pane yakaedzwa muviri mukati me0.2s kuchengetedza kuchengetedzwa kweanoshanda.
Nhanganyaya kune zvakanakira uye zvakaipira AC inomira voltage bvunzo
Munguva yekumira bvunzo yevoltage, iyo voltage inoshandiswa neinomira voltage tester kumutumbi wakaedzwa inotemwa sezvinotevera: wedzera simba rekushanda remuviri wakaedzwa ne2 uye wedzera 1000V.Semuenzaniso, simba rekushanda rechinhu chakaedzwa i220V, kana test yestanding voltage yaitwa, voltage yestanding voltage tester i220V+1000V=1440V, kazhinji 1500V.
Iyo inomira voltage bvunzo yakakamurwa kuita AC inomira voltage bvunzo uye DC inomira voltage bvunzo;zvakanakira uye zvakaipira iyo AC inomira voltage test ndeiyi inotevera:
Zvakanakira AC inomira voltage bvunzo:
(1) Kazhinji kutaura, iyo AC bvunzo iri nyore kugamuchirwa neyekuchengetedza chikamu pane iyo DC bvunzo.Chikonzero chikuru ndechekuti zvizhinji zvezvigadzirwa zvinoshandisa alternating current, uye iyo inotsinhanisa yazvino bvunzo inogona kuyedza iyo yakanaka uye yakaipa polarity yechigadzirwa panguva imwe chete, iyo inonyatsoenderana nenharaunda iyo chigadzirwa chinoshandiswa uye chiri mumutsara. nemamiriro chaiwo ekushandisa.
(2) Sezvo iyo yakarasika capacitor isingakwanise kubhadhariswa zvizere panguva yekuedzwa kweAC, asi hapazove nekukasira inrush ikozvino, saka hapana chikonzero chekurega test voltage ichikwira zvishoma nezvishoma, uye iyo yakazara voltage inogona kuwedzerwa pakutanga kwe bvunzo, kunze kwekunge chigadzirwa chacho chinonzwa kune inrush voltage inonzwisisika.
(3) Sezvo iyo AC bvunzo isingakwanise kuzadza iwo akarasika capacitances, hapana chikonzero chekuburitsa chinhu chebvunzo mushure mebvunzo, inova imwe mukana.
Zvakaipa zve AC inomira voltage bvunzo:
(1) The chikuru chakashata ndechokuti kana akarasika capacitance chinhu akayerwa yakakura kana kuyerwa chinhu ari capacitive mutoro, inogadzirwa ano achava zvikuru kupfuura chaivo leakage ano, saka leakage chaiyo ikozvino haigoni kuzivikanwa.current.
(2) Chimwe chinokanganisa ndechekuti sezvo ikozvino inodiwa neiyo yakarasika capacitance yechinhu chakaedzwa inofanira kupihwa, iyo ikozvino inobuda nemushini ichave yakakura kwazvo kupfuura ikozvino kana uchishandisa DC yekuyedza.Izvi zvinowedzera njodzi kune anoshanda.
Pane mutsauko pakati pekuonekwa kwearc uye kuyedza ikozvino?
1. Pamusoro pekushandiswa kwebasa rekuona arc (ARC).
a.Arc chiitiko chemuviri, kunyanya yakakwira-frequency pulsed voltage.
b.Mamiriro ekugadzira: kukanganisa kwezvakatipoteredza, maitiro ekugadzirisa, kukanganisa kwezvinhu.
c.Arc inonyanya kunetseka nemunhu wese, uye zvakare ndeimwe yeakakosha mamiriro ekuyera kunaka kwechigadzirwa.
d.Iyo RK99 yakatevedzana chirongwa-inodzorwa inomira voltage tester inogadzirwa nekambani yedu ine basa rekuona arc.Inoisa sampuli iyo yakakwira-frequency pulse siginecha pamusoro pe10KHz kuburikidza nepamusoro-pass sefa ine frequency mhinduro pamusoro pe10KHz, yozoienzanisa neyechiridzwa bhenji kuona kuti inokodzera here.Ikozvino fomu inogona kuiswa, uye fomu yezinga inogonawo kuiswa.
e.Maitiro ekusarudza iyo sensitivity level inofanirwa kusetwa nemushandisi zvinoenderana nechigadzirwa hunhu uye zvinodiwa.
Nguva yekutumira: Oct-19-2022
