45°C, Mfutuma ne Nnɔnhwerew 72 MTTR: ​​Batere a Wotumi Siesie Ho Nsusuwii Ma Afrika Mmeae

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Ɔberɛfɛw da 9, afe 2022

Wɔ 45°C ambient no, ɛsɛ sɛ wɔtew tumi so, mfutuma siw onwini ano na ɛsɛe terminals, na beae biako nsrahwɛ betumi agye nna abien — nokwasɛm no fi Timbuktu ne Gao wɔ Mali kosi Agadez wɔ Niger, Chad ne Sudan atifi fam. Nsiesiei nyɛ ade a wɔde ka ho; ɛyɛ anohyeto a edi kan a wɔde paw nneɛma.

Nea Aka wɔ Rated Capacity wɔ 45°C

Wɔ mmeae a ɛwɔ asase mu a atwa Timbuktu ne Gao ho ahyia wɔ Mali, Agadez wɔ Niger, Chad, Sudan atifi fam ne Mauritania no, awɔw bere mu tebea no tumi boro 45°C na kabinet mu nneɛma yɛ hyew kɛse. Edin krataa tumi akontaabu no kyinkyim — na ɛboro nea nnipa dodow no ara hwɛ kwan so. Lead-acid tumi so tew bere a ɔhyew kɔ fam na ɛkɔ soro bere a ɔhyew kɔ soro no, enti wɔ 45°C mu no batere a wɔde ama no de ahoɔden pii ma ankasa sen 25°C, asɛm a wɔtaa nte ase yiye. Ɔhaw ankasa no nyɛ tumi a ɛba fam na mmom nkwa nna tiaa: nkwa a ɛsensɛn nsu so wɔ 45°C no bɛyɛ nea ɛwɔ 25°C no nkyem anan mu biako. Enti, wɔ mmeae a ɛhɔ yɛ hyew kɛse no, ɛnyɛ tumi ne anohyeto — nkwa na ɛte saa. Nea ɛne eyi bɔ abira no, hama a ne kɛse yɛ nnɔnhwerew anan wɔ 25°C mu no bɛsoa beae no bɛyɛ nnɔnhwerew anan ne fã wɔ ne mfe abien a edi kan wɔ 45°C mu, afei ɛbɛkɔ fam nnɔnhwerew abiɛsa fi afe a ɛto so abiɛsa bere a onyin di dwuma no. Saa overshoot-afei-shortfall curve no ne classic high-temperature backup huammɔdi mode.

Akwan Abiɛsa a Mfutuma Sɛe ade

Mfutuma ka batere nhyehyɛe bi nkakrankakra nanso ɛboaboa ano, wɔ kɔnkrit akwan abiɛsa so. Nea edi kan no, onwini a wɔasiw ano: cabinet intake filters ne battery enclosure louvres siw wɔ adapɛn kakraa bi mu wɔ mfutuma bere mu, na ɛde 5°C kosi 8°C foforo ka ho wɔ mu — na esiane sɛ 10°C biara ma nkwa fã so tew nti, ɛno nkutoo gye sɛ wotwa bio. Nea ɛto so abien, terminal corrosion: mfutuma no ntumi nkɔ n’ankasa mu, nanso sɛ ɛyɛ nwini pɛ a, ɛbata terminals ne straps ho a ɛyɛ saline electrolyte film, na wɔ condensation cycle a awia ne anadwo ɔhyew a ɛsakrasakra na ɛkanyan no ase no, post corrosion yɛ ntɛmntɛm kɛse, contact resistance kɔ soro na terminals no yɛ hyew wɔ high-rate discharge ase. Nea ɛto so abiɛsa, tracking ne shorting: conductive dust a ɛboaboa ano wɔ positive ne negative terminals ntam no yɛ tracking kwan wɔ wim tebea a ɛyɛ nwini mu, na wɔ tebea horow a emu yɛ den mu no ɛde surface leakage anaa ogya ba. Mmuae ahorow no ne: fa dade ahama a wotumi hohoro si filter ahorow ananmu wɔ ɔkwan a wɔfa so ɔsram biara so, hyehyɛ terminal covers a ɛbɔ ho ban na fa srade a ɛko tia nsɛe gu so, na fa mframa a ɛyɛ dry a wɔahyɛ no den bɔ gu fam sen sɛ wode nsu bɛhohoro mu.

Nea Enti a Front Terminals Gye Adwumayɛfo Nnɔnhwerew

Wɔ mmeae a egye nna abien ansa na wɔadu hɔ no, adwumayɛfo nnɔnhwerew ho ka, na batere a wɔyɛ na esi saa nnɔnhwerew no ho gyinae tẽẽ. Batere a wɔtaa de di dwuma no wɔ nea ɛwɔ soro; sɛ wɔde si kabinet mu pɛ a, terminals no hwɛ soro wɔ shelf anaa cable tray akyi, enti sɛ wobɛhwɛ terminal baako a, ɛkyerɛ sɛ wobɛyi shelf bi na woatu cables — bɛboro simma aduanan de ahwɛ ahama a ɛwɔ unit anan. Front-terminal design (6-FMX series, 50–200Ah, nine models) de terminals abien no nyinaa to anim anim, enti battery betumi atra nkyɛnkyɛn atia cabinet fasu no na nhwehwɛmu hwehwɛ sɛ wonyi biribiara mfi hɔ; nhwehwɛmu koro no ara a ɛwɔ unit anan no so tew wɔ simma du ase. Ɛsono sɛnea wɔsesa no kɛse mpo: ɛsɛ sɛ wɔma atifi-awie-afiri no so ansa na wɔde nhama ahyɛ mu, bere a anim-awie-afiri no ma wotumi yi nhama na wɔsan de si hɔ. Anim terminals nso sie cabinet bun, a ɛma convection gap pii — san kɔ ɔhyew haw no mu. Wɔ Afrika tebea a ɛho ka yɛ den a wɔde siesie nneɛma mu no, adwumayɛfo a wɔkora so afe biara fi saa nhyehyɛe mu nsonsonoe yi mu no taa boro nsonsonoe a ɛwɔ batere ahorow no bo ntam no so.

Maintenance-Free Ɛnyɛ Nhwehwɛmu-Free

Kasasin ‘batere a wonsiesie’ no yɛ nea ɛdaadaa kɛse wɔ Afrika tebea mu. Ɛkyerɛ sɛ wɔremfa nsu a wɔahoro nhyɛ mu, ɛnyɛ sɛ wɔrenhwehwɛ mu. Esiane sɛ wontumi mmue nkwammoaa no mfa nhwɛ electrolyte nti pɛpɛɛpɛ nti, abɔnten so nsɛnkyerɛnne ho hia kɛse. Nhwehwɛmu list a ɛfata ma beaeɛ a ɛho ka yɛ den a wɔde kɔ hɔ no wɔ nneɛma anum: nea ɛdi kan, monobloc mu ahoɔden a wɔde tester a wɔde fa so susuw, a wɔde frankaa kyerɛ biribiara a ɛboro 20% firi ahama no mu; nea ɛto so abien, monobloc voltage wɔ ahomegye mu, frankaa biribiara a ɛboro 0.05V fi mfinimfini; nea ɛto so abiɛsa no, ɔhyew a ɛba awiei a wɔde infrared tuo susuw bere a wɔatow no akyi pɛɛ, baabi a nsonsonoe a ɛyɛ 5°C kyerɛ sɛ ɛko tia nkitahodi a ɛnteɛ; nea ɛto so anan, aniwa tebea, a ɛtwe adwene si asɛm a ɛho ahonhon, terminal corrosion ne nsu a ɛwɔ hɔ so; anum, nneɛma a atwa yɛn ho ahyia, kyerɛwtohɔ cabinet peak temperature ne filter blockage. Anum no nyinaa gye nea ennu simma dunum wɔ beae hɔ nanso ɛtew nea ebetumi aba sɛ ahama mũ no nyinaa bedi huammɔ mpofirim no so kɛse. Nea ɛho hia ne sɛ wobɛkyekyere inspection interval to access cost: baabi a nsrahwɛ gye nna abien no, nhyɛ asram abiɛsa biara kyinhyia — hyehyɛ asram asia kyinhyia a nneɛma anum no nyinaa yɛ ahyɛde. Mpɛn dodow a ɛba fam no yɛ nea wogye tom; nneɛma a wɔahuruw no nyɛ saa.

Ka MTTR fi Nnɔnhwerew 72 kosi 24

Wɔ Sahel no, nnɔnhwerew 72 MTTR yɛ ade a ɛfata, na sɛ wudu 24 a, egye lever anan prɛko pɛ. Nea edi kan no, spares beae: pre-position nhama a edi mũ wɔ ɔmantam adekoradan ahorow mu wɔ nnɔnhwerew asia kar akwantu mu, wɔ 3% kosi 5% wɔ beae no dodow, a model range a edi mũ. Nea ɛto so abien, replaceability: paw monoblocs wɔ nnipa baanu handling weight mu — front-terminal 12V units dodow no ara yɛ 30 kosi 65kg — na kwati 2V nkwammoaa akɛse a ehia lifting gear anaasɛ nnipa baanan soa; fa bolts di nkitaho, ɛnyɛ welded joints. Nea ɛtɔ so mmiɛnsa, pre-configuration: match, charge na label complete strings wɔ warehouse no mu enti field swap no yɛ tẽẽ replacement a matching anaa initial charge biara nni site no so. Nea ɛto so anan, akyirikyiri kɔkɔbɔ a wɔde ma ntɛm: hwɛ monobloc voltage ne emu resistance na ma alarm so adapɛn abien kosi anan ansa na adi nkogu, dannan frɛ a wɔde siesie no kɔ adwuma a wɔayɛ ho nhyehyɛe mu — MTTR nkɔso biako a ɛso sen biara, efisɛ frɛ dodow no ara gyae sɛ ɛyɛ ntɛmpɛ. Wɔn baanan nyinaa de nnɔnhwerew 24 ma; abiɛsa a edi kan no nkutoo taa du 48 pɛ.

Cabinet Retrofit Checklist a Wɔde Ma Mmeae a Ɛyɛ Hɔ

Paw batere a ɛfata na gyaw kabinet no nkutoo, na mfaso no fã yera. Nhwehwɛmu kratasin a wotumi de di dwuma tẽẽ ma mmeae a ɛhɔ yɛ hyew no wɔ nneɛma asia. Nea edi kan no, fa canopy a insulated anaa ɔdan atifi abien ka ho na asiw owia a ɛbɛhyew tẽẽ — ɔhyew a ɛso tew kɛse wɔ Sahel ne ade a ne bo nyɛ den sen biara. Nea ɛto so abien no, fa mframa a wɔde fa mu no kɔ anim a sunsuma wɔ so no na fa dade mfutuma a wotumi hohoro no hyɛ baabi a ɛdɔɔso sen sɛnea wɔyɛɛ no ​​mfiase no, efisɛ ɛsɛ sɛ wɔhwɛ ma mframa no kɔ so bere mpo a wɔasiw ne fã bi ano no. Nea ɛto so abiɛsa no, fa thermostatic fan a wɔahyɛ sɛ efi ase wɔ 40°C na ennyae wɔ 35°C hyehyɛ mu, a 5°C nsonsonoe anaasɛ fan no twa tiaa na ne nkwa nna hwe ase. Nea ɛto so anan, ma battery bank no so anyɛ yiye koraa no 300mm fi kabinet fam na ama woakwati ɔhyew kotoku ne nsu biara a egyina hɔ wɔ osutɔbere mu. Nea ɛto so anum, fa kɔla a ɛyɛ hann a ɛma hann kata kabinet no mu na ama owia a ɛtwetwe no so atew — titiriw etu mpɔn wɔ dade a wɔabɔ ho ban so. Nea ɛto so asia, fa baffle bi si batere bank no atifi sɛnea ɛbɛyɛ a fan no renbɔ nkɔ nkwammoaa no so tẽẽ na ama nsonsonoe a ɛwɔ mpɔtam hɔ ɔhyew mu aba; wɔtaa bu wɔn ani gu eyi so, nanso nsonsonoe bi ma monoblocs nyin wɔ ɔkwan soronko so kosi sɛ unit a ɛyɛ mmerɛw sen biara no bɛto ahama no nyinaa ano hye. Sɛ wɔka saa asia yi bom a, mpɛn pii no, kabinet mu hyew so tew 8°C kosi 12°C, na ɛma nkwa nna yɛ mmɔho abien. Ɛka no sua koraa sen ahama biako a wɔde besi ananmu na ɛsɛ sɛ ɛyɛ adeyɛ a wɔtaa yɛ wɔ mmeae a ɛhɔ yɛ hyew, na ɛnyɛ ɔkwan a wobetumi afa so. View Telecom Backup Power Selection