Dɛn ne float voltage?- Polinovel .

Float voltage yɛ voltage level a wɔde di dwuma wɔ battery a ɛwɔ ahoɔden koraa so de hwɛ ne charge so denam self{0}}discharge a ɛsiw ano no so. Saa ahoɔden a wɔde siesie nneɛma yi siw undercharging ne overcharging nyinaa ano, na ɛma battery no yɛ krado sɛ wɔde bedi dwuma ntɛm ara wɔ backup power systems, emergency equipment, ne renewable energy installations mu.

Battery ntra hɔ daa. Sɛ mpo wɔatwa mu wɔ adesoa biara ho a, batere nyinaa nya self-discharge-aduru a ɛyera nkakrankakra esiane nnuru a ɛwɔ mu nti. Lead-Acid battery hwere bɛyɛ 3-5% wɔ wɔn tumi mu ɔsram biara wɔ dan mu hyew mu, bere a lithium nnuru binom hwere 1-3%.

Float charging di eyi ho dwuma denam voltage a ɛnyɛ den, a ɛba fam a wɔde di dwuma a ɛma nea batere no hwere denam self-discharge no so pɛpɛɛpɛ no so. Charger ne battery no yɛ adwuma wɔ parallel, a charger no ma current a ɛdɔɔso ara kwa a ɛbɛma battery no akɔ so ayɛ adwuma yiye a ɛrenhyɛ current a ɛboro so a ɛbɛsɛe nkwammoaa no.

Adwene no bɛyɛ nea ɛho hia kɛse wɔ standby applications mu. Tumi a wɔmfa ntwa mu a wɔde ma data mmeae no hia batere wɔ 100% tumi bere a grid no adi nkogu no. Ɛsɛ sɛ kanea nhyehyɛe a egye ntɛmpɛ no yɛ adwuma ntɛm ara bere a anyinam ahoɔden no twam no. Saa nsɛm tebea yi hwehwɛ batere a ɛtra hɔ kwa asram nanso ɛda so ara yɛ nea wɔahyɛ no ma koraa-precisely nea float voltage de ma.

Float Voltage

Battery ahorow ahorow hwehwɛ sɛ wɔde float voltage ahorow a ɛsono emu biara di dwuma, na sɛ wɔde ahoɔden a ɛnteɛ di dwuma a, ebetumi atew batere no nkwa so kɛse anaasɛ ɛde ahobammɔ ho asiane ahorow aba.

Lead{0}}acid battery, a nsuyiri, AGM, ne gel variants ka ho, wɔ yiye-asi float voltage ranges. Wɔ 25℃(77℃F) mu no, gyinapɛn no bɛyɛ 2.25 kosi 2.30 volt wɔ nkwammoaa biara mu. Sɛ wopɛ 12V battery a ɛwɔ nkwammoaa asia a, eyi kyerɛ sɛ 13.5-13.8V.

Nsuo a ayiri afa mu-acid battery taa pue wɔ 13.4V (2.23V wɔ nkwammoaa biara mu), ɛba fam kakra sene variants a wɔakata so na ama nsuo a ɛyera wɔ electrolyte gassing mu no ayɛ ketewa. AGM batere yɛ adwuma yiye wɔ 13.5-13.6V, bere a gel battery pɛ 13.1-13.3V esiane sɛ ɛyɛ mmerɛw wɔ ahoɔden a ɛboro so ahoɔden ho nti.

Saa gyinapɛn ahorow yi nyɛ nea wɔpɛ. Wɔ float voltage mu no, battery no gye current kakraa bi-a mpɛn pii no ɛba fam sen ne amp-dɔn ahoɔden no 1%. Ebia 100ah battery bɛtwe 0.5-1 amp pɛ wɔ float charging mu, a ɛdɔɔso ara kwa sɛ ɛbɛko atia self-discharge a ɛrensi battery no chemistry so dua.

Ɔhyew no nya float voltage a eye sen biara so nkɛntɛnso kɛse. Electrochemical reactions a ɛwɔ lead-acid battery mu no yɛ ntɛmntɛm wɔ ɔhyew mu na ɛyɛ brɛoo bere a awɔw ba no. Industry standard temperature compensation no bɛyɛ -3.9mV wɔ digrii biara mu wɔ cell biara mu. Sɛ wopɛ 12V battery a, ɛno yɛ bɛyɛ -23mV wɔ℃biara mu ma pack no nyinaa.

Susuw nhwɛso a mfaso wɔ so ho hwɛ: Battery a nsu ayiri afa mu 12V a ɛwɔ 13.4V float voltage wɔ 25℃. Sɛ ɔhyew a ɛwɔ baabiara no kɔ soro kodu digrii 35 (ɔkɔ soro digrii 10) a, nsu a ɛsensɛn nsu mu a wɔde tua ho ka no bɛyɛ 13.17V. Sɛ nsakrae yi nni hɔ a, na ahoɔden a ɛkɔ soro wɔ ɔhyew a ɛkɔ soro no mu no bɛma gassing ne nsu a ɛboro so no ayera. Nea ɛne no bɔ abira no, wɔ 15℃, ɛsɛ sɛ float voltage no kɔ soro kodu 13.63V na asiw undercharging ano wɔ tebea a ɛyɛ nwini no mu.

Lithium batere ahorow no kyerɛ mfonini a ɛyɛ den kɛse. Bere a wɔyɛɛ lead-acid battery a float charging wɔ adwene mu no, lithium chemisries-titiriw lithium-ion-hwehwɛ sɛ wosusuw ho yiye ansa na wode float voltage a ɛkɔ so daa adi dwuma.

Lifepo4 (lithium iron phosphate) batere betumi agyina float charging ano bere a wɔahyehyɛ no yiye no. Float voltage a wɔkamfo kyerɛ no fi 3.35 kosi 3.45V wɔ cell biara mu (13.4-13.8V ma 12V pack). Nanso, LifePo4 nkwammoaa mpo nya onyin ntɛmntɛm bere a wɔkora so wɔ ahoɔden a ɛsen biara mu bere tenten no.

Standard lithium-ion nkwammoaa (NMC, NCA nnuruyɛ) hyia asiane kɛse. Saa nkwammoaa yi taa de ahoɔden kɔ 4.2V wɔ nkwammoaa biara mu, nanso ɛkura mu wɔ saa voltage yi so kɔ so de adwennwen ba electrode nneɛma no so. Cathode no yɛ nsakrae wɔ nhyehyɛe mu, lithium plating betumi aba wɔ anode no so, na afã a ɛyɛ adwuma no ma electrolyte porɔw ntɛmntɛm.

Ɛha na ɛhe na .Lithium ion batere a wɔde charge .Nneɛma a wɔyɛ no bɛyɛ nea ɛho hia kɛse. Quality lithium ion battery charger ahorow no ntaa mfa nokware float charging nni dwuma. Mmom no, wɔde "storage voltage" strategy-gye di dwuma ma ebia 3.9-4.0V wɔ cell biara mu na afei wɔtwa mu, na wɔsan de wɔn ho hyɛ mu bere a voltage no kɔ fam sen threshold bi nkutoo. Eyi siw daa voltage stress a atetesɛm float charging.

Battery Management Systems (BMS) a ɛwɔ lithium batere mu no hwɛ nkwammoaa mu ahoɔden so bere nyinaa. Sɛ wɔbɔ mmɔden sɛ wɔbɛma float charging a, ɛsɛ sɛ BMS no hwɛ hu sɛ nkwammoaa a ɛkari pɛ ne voltage control a ɛyɛ pɛpɛɛpɛ. 50-100mV mpo wɔ voltage a wɔkamfo kyerɛ no so betumi ama asɛe ntɛmntɛm.

Nea ɛkyerɛ a mfaso wɔ so: Lithium ion battery charger ayɛfo dodow no ara tu fo pɔtee sɛ ɛnsɛ sɛ wɔde lithium-ion batere a ɛkɔ so no bɔ ka. Mmom, wɔkamfo kyerɛ bere ne bere mu "atifi-UP" charge anaasɛ storage wɔ 80-90% tebea a charge ma bere tenten standby applications.

Float Voltage

Float voltage nni hɔ wɔ isolation-Ɛyɛ afã a etwa to a ɛwɔ abiɛsa-phase charging process a nnɛyi battery charger dodow no ara de di dwuma ma lead-acid ne lithium nnuruyɛ bi.

Bulk stage no de current a ɛsen biara ma battery ahoɔden no ntɛmntɛm. Sɛ battery bi yɛ adwuma kɛse-Ka a, ɛwɔ ase 80% tumi-ɛtumi gye mprempren rates a ɛkorɔn. Charger a ne kɛseɛ fata bɛma 15-25% a ɛwɔ battery no tumi mu wɔ AMPs mu. 100AH battery betumi anya 15-25 amps bere a wɔrebɔ no kɛse no.

Voltage kɔ soro nkakrankakra wɔ bere a ɛrebɔ kɛse bere a battery no ahoɔden tebea kɔ soro no. Sɛ wopɛ 12V lead-acid battery a, voltage betumi akɔ soro afi 11.5V bere a diestly discharged kɔ bɛyɛ 14.4V wɔ awiei bulk stage. Charger no kura current a ɛkɔ so daa no mu bere a voltage di battery no a wogye tom no akyi.

Bɛyɛ 80% wɔ battery no tumi mu no san ba bere a wɔrebɔ no kɛse no. Saa stage yi yɛ ntɛmntɛm-100AH battery a ɛkɔ akyiri no betumi awie bulk charging wɔ nnɔnhwerew 3-5 mu denam 20-amp charger so.

Bere a battery no bɛn 80-90% tumi no, tumi a ɛwɔ sɛ egye mprempren no so tew. Charger no dan kɔ absorption mode so, ɛkura voltage daa (mpɛn pii no 14.4-14.8V ma 12V lead-acid) bere a mprempren tapers off abɔde mu.

Wɔ absorption mu no, charging current betumi akɔ fam afi 15 amps akɔ 5 amps, afei akɔ 2 amps bere a battery no rebɛn tumi a edi mũ. Nnuru a ɛyɛ adwuma wɔ batere mprɛte no mu no brɛ ase-Active material sites no bɛyɛ adwuma, na emu ahoɔden no kɔ soro kakra.

Saa stage yi gye bere tenten sen bulk ɛmfa ho sɛ ɛsan ba 10-20% tumi. 100AH battery koro no ara betumi de nnɔnhwerew 3- akɔ absorption mode mu. Charger no taa hwɛ current, twɛn sɛ ɛbɛtɔ fam wɔ threshold-ebia C/50 (2 amps ma 100ah battery)-ansa na ɛredan akɔ float so.

Sɛ absorption wie a, charger no brɛ voltage ase kɔ float level no so. Yɛn 12V lead-acid nhwɛso no, voltage so tew fi 14.4V kosi 13.5V. Mprempren ntɛm ara na ɛhwe ase wɔ dodow a ɛba fam mu-ɛtaa ba fam sen 1 amp.

Mprempren battery no titiriw "resting" a ɛwɔ charge nyinaa. Float voltage a ɛba fam no siw-mprempren charge a ɛbɛma mframa a ɛwɔ batere a nsu ayiri afa mu anaasɛ adwennwen a ɛwɔ batere a wɔakata so mu aba no ano. Minimal current no si nea battery no hwere ma self-discharge no ananmu kɛkɛ.

Nnɛyi abiɛsa-Stage charger ahorow no betumi atra float mode mu daa. Battery a wɔde abɔ float charger a ɛfata ho no betumi atra ase asram anaa mpo mfe pii, bere nyinaa ayɛ krado sɛ ɛde tumi a edi mũ bɛma bere a ɛho hia no. Eyi ma float charging yɛ nea eye ma standby battery wɔ UPS nhyehyɛe ahorow, kanea a wɔde di dwuma ntɛm, ne alarm nhyehyɛe mu.

Data centers de wɔn ho to float voltage sohwɛ a ɛfata so kɛse. UPS a wɔtaa de si hɔ no betumi ayɛ 12V batere du du a ɛwɔ ntoatoaso mu de ayɛ DC bɔs ahoɔden 480V anaa nea ɛboro saa. Saa batere ahorow yi sen bere nyinaa, ɛtɔ mmere bi a mfe pii wɔ nsɛm a esisi a ɛma nsu fi nsu mu no ntam.

UPS Battery Chargers taa hwɛ batere so wɔ nea ɔyɛe no mu{0}}a wɔakyerɛ wɔ float voltage-a ɛtaa yɛ 2.27V wɔ cell biara mu ma VRLA (Valve-regulated lead-acid) batere. Temperature sensor ahorow no sesa saa voltage yi daa. 480V ups a ɛwɔ 20 dumien-volt battery a ɛwɔ series mu no hwehwɛ sɛ wɔyɛ voltage regulation pɛpɛɛpɛ wɔ 240 cells no nyinaa so.

Asɛnnennen no mu yɛ den bere a batere no abɔ akwakoraa ne aberewa no. Bere a batere nyin no, wɔn ho-discharge rates betumi akɔ soro, a ɛhwehwɛ sɛ ɛsono float voltages a ɛsono kakra. UPPS nhyehyɛe a ɛkɔ anim no de batere a ɛwɔ ahoɔden so no di dwuma wɔ sɔhwɛ biara mu de hu batere a asɛe a ɛtwetwe nsu a ɛsensɛn nsu so a ɛboro so-asɛnkyerɛnne a ɛkyerɛ sɛ wɔreyɛ ntade tiaa anaasɛ ayow-afiri nkwammoaa mu.

OFF-GRID owia ahoɔden a wɔde si hɔ no de float charging nsɛnnennen soronko kyerɛ. Batere ahorow no de nna anaa adapɛn pii di dwuma koraa wɔ bere a owia bɔ kɛse mu, afei ɛma nsu fi mu ba bere a wim tebea a ɛyɛ mununkum atrɛw no.

Solar charge controllers de algorithms a ɛyɛ nwonwa di dwuma. Awiabere no, sɛ batere no nya ahoɔden a edi mũ a, controller no brɛ panel voltage ase ma ɛyɛ frɔmfrɔm. Eyi siw ka a wɔbɔ no boro so bere a ɛma panel ahorow no tumi ma ofie mu nnesoa nya ahoɔden tẽẽ no. Anadwo, sɛ panel ahorow no mma anyinam ahoɔden biara a, ɛda adi sɛ nsu a wɔde fa nsu mu no gyae, na batere no fi ase yi.

Nsonsonoe titiriw a ɛwɔ UPS applications mu ne cycling. Ebia owia ahoɔden batere bɛsen nnɔnhwerew 8-12 da biara, a ɛbɛtow agu anadwo biako, afei ɛbɛsan ahyɛ mu da a edi hɔ no. Saa nhyehyɛe yi hwehwɛ sɛ wotua ɔhyew ho ka a ɛyɛ den kɛse, efisɛ batere no hyew betumi ahinhim kɛse wɔ awia ne anadwo ntam.

Kar batere ahorow no kyerɛ sɛ ɛsono sɛnea wɔde float charging scenario ba. Sɛ engine no tu mmirika a, alternator no bɔ charge wɔ bulk voltage (14.2-14.4V). Nanso, nnɛyi alternators no de smart regulators a ɛtew voltage so bere a battery no abɛn ahoɔden a edi mũ no ka ho, na nea ɛho hia titiriw no ɛma float charging bere a wɔreka kar no.

Po mu batere nhyehyɛe taa yi afie mu batere (ma akanea ne ɛlɛtrɔnik mfiri) fi batere a wɔde fi ase ho. Ebia ofie batere bɛkɔ so ayɛ nea ɛsensɛn nsu so a efi mpoano ahoɔden anaa owia ahoɔden so bere a hyɛmma no te hyɛn gyinabea no. Po so batere a ɛyɛ papa no ma multi-bank charging, a ɛwɔ ahofadi float voltage nhyehyɛe ma battery bank ahorow.

Getting float voltage right hwehwɛ sɛ wɔde wɔn adwene si nneɛma pii so sen basic voltage specification no.

Sɛ wɔantumi antua ɔhyew ho ka a, batere ahorow no hu amane. Battery a ɛwɔ 40℃mfiri dan mu agye 13.8V no nya nhyɛso koro no ara a ɛwɔ battery a ɛwɔ 25℃a wogye 14.2V-abien no nyinaa wɔ ahobammɔ float voltage no so ma ɔhyew ankasa.

Battery a ɛyɛ papa no bi ne sensor ahorow a ɛma ɛyɛ hyew. Sensor no betumi ayɛ nea ɛwɔ mu (sɛ charger no ne batere no kyɛ enclosure) anaasɛ akyirikyiri (a wɔde nhwehwɛmu a wɔde ahyɛ batere no so anaa ɛbɛn hɔ a). Charger no microcontroller no sesa output voltage no ankasa gyina ɔhyew akenkan so.

Akatua akontabuo no yɛ tẽẽ: ma 12V lead-acid battery a ɛwɔ 6 cells ne baseline float a ɛyɛ 13.5V wɔ 25℃, fa -3.9mV/℃× 6 cells=-23.4MV/℃di dwuma. Sɛ battery no hyew yɛ 30℃, siesie ahoɔden no denam (30-25) × -0.0234V=-0.117V so, na ɛma 13.38V.

Float current da battery akwahosan adi. Ɛsɛ sɛ battery a ɛwɔ ahoɔden wɔ float mode mu no twetwe ne AH rating no nnu 1% wɔ AMPs mu. Mprempren a ɛkɔ soro kɛse no kyerɛ ɔhaw ahorow: shorts a ɛwɔ mu, a ayow-afi nkwammoaa mu wɔ batere a nsu ayiri afa mu mu, anaasɛ sulfation a efi undercharging a atwam no mu.

Advanced battery monitoring systems track float current trends wɔ bere mu. Nkɔanim a ɛba nkakrankakra no taa di batere no huammɔdi anim asram pii, na ɛma wɔbɔ kɔkɔ sɛ wɔnyɛ nhyehyɛe sɛ wɔbɛsesa bere a wɔreyɛ mfɛnsere a wɔde siesie nneɛma no sen sɛ ebenya huammɔdi a ɛyɛ nwonwa.

Afiri pii taa yɛ ɔyaredɔm a ɛma ɔyare mmoawa ba no so. Ebia charger a wɔayɛ ama battery chemistry biako ne foforo bedi dwuma no ne nea abu so sen biara. Gel battery bi a ɛwɔ battery charger a nsu ayiri afa so a wogye 13.8V sen sɛ wobenya 13.2V a wɔhwehwɛ no bɛyɛ hyew dodo na adi nkogu ntɛm.

Mfomso foforo a ɛtaa ba ne sɛ wobebu wɔn ani agu ɔhyew ho akatua so wɔ mmeae a ɔhyew mu nsakrae kɛse wɔ. Battery bank a ɛwɔ abɔnten telecom cabinet mu no betumi anya ɔhyew fi -10℃kosi 50℃afe biara. Sɛ wɔantumi antua ka a, batere no yɛ nea wɔbɔ ho ka boro so bere tenten wɔ awɔw bere mu na wɔbɔ ho ka kɛse wɔ awɔw bere mu, na ɛtew nkwa nna so kɛse.

Nsakrae a ɛba fi absorption so kɔ float so no nso de ɔhaw ahorow ba. Ebinom a ɛba fam-Quality chargers no ntew voltage so ankasa da to proper float levels, mmom ɛkura battery wɔ absorption voltage mu daa. Eyi yɛ adwuma nnɔnhwerew anaa nna mpo nanso ɛde ɔsɛe a wɔaboaboa ano ba wɔ adapɛn ne asram pii a ɛkɔ so di nkitaho no mu.

Float Voltage

Nhwehwɛmu kyerɛ bere nyinaa sɛ float charging a ɛfata betumi atrɛw batere no nkwa nna mu kɛse. Lead-Acid battery a wɔhwɛ so wɔ float voltage a ɛteɛ a ɛwɔ ɔhyew akatua no betumi anya mfe 8-10 som wɔ standby applications mu, sɛ wɔde toto mfe 4-5 bere a float voltage no nyɛ adwuma yiye a.

Adwinnade no yɛ tẽẽ: overcharging ma grid corrosion wɔ lead-acid battery mu na ɛma active material shedding yɛ ntɛmntɛm. undercharging ma sulfation-lead sulfate crystals nyin yɛ kɛse na ɛyɛ den, ɛtew tumi so daa. Float voltage bɔ beae a ɛyɛ dɛ no wɔ baabi a adeyɛ abien no mu biara nni tumi.

Wɔ lithium batere fam no, mfaso a ɛwɔ so sɛ ɛbɛtra hɔ akyɛ no fi ahoɔden a ɛkɔ soro bere nyinaa a wɔkwati no mu. Lithium-ion cell a wode besie wɔ 4.2V versus 3.9V no betumi atew cycle nkwa so 30-40%. Quality lithium ion battery charger ahorow no de nimdeɛ yi ka ho, sɛ́ wobɛkwati float charging koraa anaasɛ wode voltage anohyeto ahorow bedi dwuma yiye a ɛba fam koraa wɔ charge voltage a ɛsen biara no ase.

Ɛsɛ sɛ wɔn a wɔyɛ batere no ho nsɛm no di kan bere nyinaa. Bere a akwankyerɛ a ɛfa nneɛma nyinaa ho no ma wonya mfiase no, batere pɔtee bi taa nya ahwehwɛde soronko a egyina wɔn mu adansi, electrode nneɛma, ne nea wɔahyɛ da ayɛ so.

Ɛnyɛ ɔkwan biako pɛ a wɔfa so hwɛ sɛnea wɔde batere di dwuma, ɛwom sɛ ɛno ne nea abu so sen biara ma application ahorow a egyina hɔ de.

Trickle charging de daa low current di dwuma sen sɛ ɛbɛyɛ constant voltage. Saa ɔkwan dedaw yi nni nyansa a ɛwɔ float charging mu na ebetumi agye batere a ɛboro so sɛ trickle current no boro self-yi current no so a. Nnɛyi abiɛsa-Stage charger ahorow no fã kɛse no ara asi trickle charger a ɛnyɛ den ananmu esiane ntease pa nti.

Pulse charging de current pulses a ɛba bere ne bere mu di dwuma sen sɛ ɛbɛkɔ so ayɛ voltage. Wɔn a wɔyɛ no binom ka sɛ pulse charging ma sulfation a ɛwɔ kɔbere mu-acid battery no so tew, ɛwom sɛ adanse no adi afra de. Pulse charging ntaa mma wɔ application atitiriw mu.

Wɔ lithium batere ho no, "storage mode" charge anya adom. Charger no bere ne bere mu no hwɛ voltage na ɛma top-up charge sɛ voltage no akɔ fam wɔ threshold bi ase a, ɛnde disconnects. Eyi kwati nkitahodi a ɛkɔ so wɔ atetesɛm mu float charging mu bere a ɛma batere ahorow no yɛ krado sɛ wɔde bedi dwuma no.

Float voltage gyina hɔ ma nnɛyi batere a wosiesie no fã titiriw bi, titiriw ma ahoɔden a wɔde gyina hɔ. Lead-Acid battery a wɔn abura-su suban ne wɔn ho a ɛkorɔn-discharge rates no yɛ nea wɔayɛ ama float charging. Voltage no sua sɛnea ɛbɛyɛ a ebetumi asiw ɔsɛe a ɛkɔ soro no ano na atumi akura ahoɔden a edi mũ no mu daa.

Lithium batere hwehwɛ akwan a ɛyɛ nuanced pii. Lithium ion battery charger a wɔde di dwuma kɛse wɔ backup power applications mu no hwehwɛ sɛ yɛte ase sɛ ebia atetesɛm mu float charging no rentumi nyɛ adwuma. Lithium battery pii yɛ adwuma yiye wɔ periodic top-up charging mu sen sɛ ɛbɛkɔ so ayɛ voltage application.

Wontumi nka dwuma a ɔhyew di ho asɛm ntra so. Batere no mu anyinam ahoɔden yɛ adwuma denneennen wɔ ɔhyew tebea ho, na ɛma ɔhyew ho akatua a ɛho hia ma nsu a wɔde hyɛ nsu mu a wɔde hyɛ nneɛma a atwa yɛn ho ahyia mu no ho hia kɛse.

Float charging a ɛfata, a wɔde chargers a ɛyɛ papa ne monitoring a ɛfata aka ho no, dannan batere fi nneɛma a wɔde di dwuma mu a ɛhwehwɛ sɛ wɔtaa de si ananmu kɔ Long-bere mu agyapade a wotumi de ho to so mu. Sika kakraa bi a wɔde ahyɛ mfiri pa a wɔde bɔ ka mu no tua kyɛfa denam batere nkwa nna a wɔatrɛw mu ne ahoɔden a wotumi de ho to so a wɔde gyina akyi so bere a ɛho hia kɛse no.