Ol As tingting Bilong Testim Bateri: Kapasiti, Voltej, na Intenel Resistens — Tripela Namba we i Tokim Olgeta Stori

Stori

Me 8, 2020

Yu no inap skelim wanpela bateri long wanpela namba tasol. Bikpela rong em long bilip olsem bikpela voltej i min olsem wanpela helti bateri — wanpela bateri i stap long sel inap long 6-pela mun wantaim hevi self-discharge inap soim yet klostu-ful open-seket voltej taim yusebol kapasiti bilong en i go daun long hap. Long narapela sait, wanpela olpela bateri wantaim planti tausen saikel i ken soim gutpela voltej tasol i pundaun aninit long mak bilong 'cutoff' aninit long lod. Dispela tupela eksampel i soim olsem 'single-parameter' jasmen i save kamapim rong 'diagnosis': 'capacity', 'voltage', na 'internal resistance' olgeta i mas skelim wantaim.

Kapasiti, Voltej, na Intenel Resistens: Tripela Dimensen bilong Bateri Helt

Kapasiti i tokim yu hamas eneji bateri inap long holim yet, we ol i save kolim long ampere-aua (Ah) — em olgeta pawa we bateri inap long givim aninit long ol standet 'discharge' kondisen. Capacity fade em i nambawan samting we i soim olsem bateri i go lapun. Wanpela bateri we i gat mak bilong 100Ah we inap long givim 70Ah tasol bihain long tripela yia i gat stet bilong helt (SOH) bilong 70%. Pasin bilong skelim kapasiti i nidim ful 'discharge' i go long 'cutoff voltage', we i save kisim bikpela taim - planti taim i no gutpela long sekim hariap long olgeta de, tasol em i bikpela samting long mekim 'acceptance testing', 'annual maintenance surveys', na 'end-of-life determination'.

Intenel resistens i soim 'impedance' insait long bateri, we ol i skelim long 'milliohms' (mΩ). Em i gat tripela samting: 'polarization resistance' (long 'electrochemical reaction kinetics'), 'ohmic resistance' (long 'electrode material resistivity' na 'contact interfaces'), na 'electrolyte resistance'. Ol nupela bateri i save soim 'internal resistance' insait long 'tens milliohms' o liklik moa. Taim namba bilong ol 'cycle' i go antap na 'electrolyte' i pinis, 'internal resistance' i go antap isi isi. Bikpela samting em olsem, 'internal resistance' na 'capacity fade' i no wankain - 'resistance' i save senis liklik long namba wan hap bilong laip, na bihain i save go hariap long laspela hap. Long taim we kapasiti i go daun tru, resistens i ken i go antap tupela taim o moa. Dispela i mekim na 'internal resistance' i gutpela long givim tok lukaut hariap na i no long mekim laspela skelim.

Voltage em i nambawan gutpela samting tasol em i isi long ritim rong. Open-circuit voltage (OCV) i soim tasol stet bilong sas (SOC) — hamas eneji i stap yet — i no hamas bateri inap long givim. Wanpela 12V 'lead-acid' bateri long 12.6V i pulap; long 12.0V em i olsem 75% SOC; long 11.4V samting olsem 25% SOC; long 10.5V em i klostu pinis. Tasol SOC na SOH i no wankain samting — wanpela bateri we i gat bikpela SOC wantaim bikpela intanel resistens bai pundaun aninit long opereting voltej taim ol i putim lod, na ol ikwipmen bai pas maski wanem samting i kamap. Voltej i mas oltaim i stap wantaim lod, long rot bilong lod tes o kapasiti tes, na i no ken tru long open-seket voltej tasol.

Wanem taim long yusim 'Capacity Testing' na 'Internal Resistance Testing'

Ol kain kain aplikesen i nidim kain kain rot bilong testim, na sapos yu makim rong rot dispela i westim taim na yu inap lusim ol hevi tru. Kapasiti testing (ful discharge) em i nambawan standet bilong painimaut helt bilong bateri, tasol em i gat tupela samting pastaim: em i mas rausim ful discharge bilong bateri, we i min olsem yu mas kisim wanpela onlain sistem i go aut long intanet; na em i save kisim longpela taim — wanpela 100Ah bateri we ol i rausim long 5A i nidim 20 aua. Kapasiti testing em i stret long: kisim nupela bateri, ol sevei bilong mentenens long olgeta yia, painimaut long pinis bilong laip bilong bateri pastaim long senisim bateri, na dip skelim long taim bilong skelim ol asua.

Intanel resistens tes em i hariap, i no inap bagarapim, na em i ken kamap long intanet. Skelim i save kisim sampela seken tasol, i no nidim long rausim bateri long sevis, na i no nidim 'discharge load'. Dispela i mekim em i gutpela long ol wok sekim: sekim ol bateri long olgeta mun long ol telekom bes stesin, sevim intanel resistens sevei bilong ol UPS bateri benk long olgeta kwata, na sekim ol bek-ap bateri bilong data senta long olgeta taim. Taim ol i skelim intanel resistens namel long ol wanwan sel insait long wanpela bateri string, ol i ken luksave long ol wik sel — sapos wanpela sel i soim moa long 30% bikpela resistens long grup averes, em i mas kisim luksave maski absolut veliu bilong en i stap yet insait long spec.

Wanpela namel rot em 'load voltage test': putim sotpela taim, 'moderate-current load' (planti taim em i save kisim planti ten amps inap sampela seken i go inap planti ten seken) na skelim 'voltage sag'. Dispela i gat moa infomesen long 'open-circuit voltage' tasol em i hariap moa long 'full capacity testing', na dispela i mekim em i gutpela long mekim 'field assessment' long painimaut sapos wanpela bateri inap long stap laip taim ikwipmen i kirap. PK59A 'storage battery tester' i sapotim dispela 'load testing mode' - yu no nidim long rausim bateri na yu no nidim long rausim bateri longpela taim.

PK59A: Putim Tripela Paramita i go insait long wanpela Hanheld Divais

Ol pasin bilong testim ol bateri i save yusim tripela seperet divais: wanpela voltmita bilong voltej, wanpela discharge instramen bilong kapasiti, na wanpela intanel resistens mita bilong resistens. Ol hevi i stap ples klia — planti divais, ol kompleks waia, ol data we i no wankain, na ol risal we i hat long bungim. Ol fil enjinia i mas raitim tripela seperet riding, na bihain putim ol i go insait long wanpela sistem long opis. Sapos i gat asua long dispela sen — transkripsen, data entri, o intapretesen — i min olsem data i no stret.

PK59A i bungim kapasiti, voltej, na intanel resistens mesamen insait long wanpela hanheld divais. As bilong skelim rot bilong en i yusim wanpela foa-waia (Kelvin) koneksen bilong skelim intanel resistens, na dispela i rausim strong bilong tes lid resistens. Wanpela standet 'discharge circuit' we i stap insait long en i save mekim 'discharge verification' bilong sotpela taim bilong kapasiti taim i gat nid. Ol i save kisim 'voltage' long rot bilong wanpela 'high-precision ADC'. Olgeta tripela paramita i stap long wankain skrin, ol risal i save wok bung wantaim, na i no gat wok long raitim long han.

Long praktis, PK59A i save putim gutpela samting long rot bilong ol liklik liklik samting. Em i sapotim planti kemistri bilong bateri — lid-asid, litiam-ion, nikel-metal haidrait — olgeta i ken skelim wantaim wanpela instramen, na i no gat nid long ol tul bilong kemistri. Em i save putim ol tes risal bilong skelim wantaim ol data bilong bipo. Displei bilong en i givim wanpela stretpela toksave — PASS / WARNING / FAIL — na i no ol raw riding tasol, larim ol wokman bilong fil i skelim status bilong bateri long wanpela lukluk tasol. Em i gat tu otomatik tempereja kompensesen, na stretim ol riding long ol ples we i gat bikpela o liklik tempereja bai ol samting i stap klostu i no ken paulim ol risal.

Fopela Komon Fild Testing Mistakes

Long wok bilong testim ol bateri long fil, planti rong i save kamap planti taim na dispela i save kamapim ol lus we i no gat as bilong en. Taim yu kliagut long ol dispela samting, dispela i save pasim ol hevi tru. Namba wan rong em long skelim 'voltage' we i no gat 'internal resistance'. Olsem yumi bin toktok long en, voltej i soim SOC tasol, i no helt bilong bateri tru. Ol wokman bilong mentenens husat i save trastim voltej — ting olsem nomol voltej i min olsem gutpela bateri — ol i wok yet wantaim ol bateri we intanel resistans bilong en i antap tru pinis, inap long taim ol ikwipmen i bagarap long wanpela bikpela taim.

Namba tu rong em long no tingim 'battery string' i wankain. Wanpela string bilong bateri em i gutpela olsem sel bilong en we i no strong tumas. Sapos intanel resistens i senis tru namel long ol sel, string bai pundaun aninit long 'cutoff voltage' long taim bilong bikpela 'current discharge' bikos long 'barrel effect', maski olgeta wan wan sel i stap insait long 'spec' bilong 'absolute resistance'. Taim yu testim wanpela string, oltaim skelim tupela sel na wanwan sel, na lukluk gut long ol sel we resistens bilong ol i no wankain olsem 30% long averes bilong grup.

Namba tri rong em long feil long rekodim na skelim ol data. Planti wokmanmeri i pinisim wanpela tes, ritim ol namba, na lusim — ol data i no save go insait long mentenens sistem. Long neks tes saikel, i no gat rot long save wanem samting i senis insait long dispela taim. Stretpela rot em long rekodim intanel resistens na voltej bihain long wanwan tes, na wokim wanpela taim-siris helt rekot bilong wanwan sel. Taim wanpela sel i soim olsem 'resistance' i go antap hariap, ol i mas makim taim bilong senisim pastaim long em i bagarap.

Namba foa rong em long lukluk nating long ol samting we i save kamap long ples. Intanal resistans na kapasiti bilong bateri i dipen long tempereja. Long ol 'lead-acid' bateri, olgeta 10°C i go antap i save daunim intanel resistens long samting olsem 30% na i save apim kapasiti long samting olsem 10%; narapela samting i save kamap taim ples i no hat tumas. Sapos i no gat kompensesen bilong tempereja, ol 'resistance readings' we ol i kisim long ol narapela narapela sisen i no inap long wankain. PK59A 'temperature compensation feature' i stap stret long stretim dispela hevi.

Gutpela Advais bilong ol Mentenens Tim na ol Baia

Gutpela wok bilong lukautim bateri i go moa long skelim tasol 'voltage'. Wanpela gutpela wokflo bilong tes i mas i gat: tes bilong kisim ol nupela bateri (konfemim namba wan SOH long 100%), ol intanel resistens inspeksen long taim bilong sevis (long olgeta kwata bilong jeneral yus, long olgeta mun bilong ol telekom bes stesin), annual kapasiti spot-sekim (ful dischargem 20% bilong ol sel), na ol inspeksen i go antap long ol eria we pawa i save pinis planti taim.

Taim yu makim ol samting bilong testim, prais tasol i no ken i stap olsem samting bilong skelim. Wanpela integreted divais we i save skelim kapasiti, voltej, na intanel resistans em i no gat bikpela pe, moa gutpela, na i no save kisim bikpela taim tumas olsem tripela singel-fanksen divais. Bikpela samting bilong wanpela masin olsem PK59A em i no stretpela skelim tasol — em i inap long pinisim ful asesmen bilong bateri insait long 5-pela minit na i no tupela aua bilong putim waya, rausim, na raitim ol data.

Ol manmeri i baim ol samting i mas lukluk gut long ol liklik samting we ol i no save luksave long en long ol maketing materiel: sapos dispela masin i sapotim data ekspot bilong bungim wantaim mentenens menesmen sistem; sapos ol 'battery clips' inap long kisim ol narapela kain 'terminal' we yu painim long fil; sapos ol i sapotim 'online' (no-rimove) tes; na sapos ol sevis bilong waranti na kalibresen i inap — ol tes instramen yet i nidim kalibresen long olgeta taim. Ol dispela ditel i makim sapos ol i yusim tru dispela masin o ol i lusim tingting long en insait long wanpela drowa. View the Battery Test Instruments Collection