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The time now is 01.11.2024 - 00:37


Napajanie

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airbilly
Post subject: RE: Napajanie  PostPosted: 13.11.2014 - 13:28 #107754
Guru


Joined: Mar 13, 2005
Posts: 1867
Location: Nitra
yeager wrote: ›nie celkom, lebo 20-24W spotreba sa nemeni ... meni sa iba prud ...

P=U*I

P=20W
U=12V
I=1,66A

Kapacita baterky 100Ah
100/1,66=60 hodin

P=20W
U=24V
I=0,83A
Kapacita baterky 50Ah
50/0,83A=60 hodin
 
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yeager
Post subject: RE: Napajanie  PostPosted: 13.11.2014 - 15:53 #107755
Guru


Joined: Jún 19, 2005
Posts: 1019

airbilly wrote: ›
yeager wrote: ›nie celkom, lebo 20-24W spotreba sa nemeni ... meni sa iba prud ...

P=U*I

P=20W
U=12V
I=1,66A

Kapacita baterky 100Ah
100/1,66=60 hodin

P=20W
U=24V
I=0,83A
Kapacita baterky 50Ah
50/0,83A=60 hodin


jasne ... som sa sekol Smile
 
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yeager
Post subject: RE: Napajanie  PostPosted: 15.11.2014 - 08:05 #107764
Guru


Joined: Jún 19, 2005
Posts: 1019

Cele zle, dal som si vyrobit skrinku 50*40*20. Problem je v tom, ze 2*48Ah baterka ma sirku 42cm a 2*55Ah baterka 48cm. Su to klasicke autobaterie, vy ake pouzivate, nemate link na mensie?
 
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server3
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 10:31 #108019
Ucen


Joined: Aug 11, 2008
Posts: 537

Čaute,potrebujem vyrátať aká bude spotreba dvoch Rocketov M5.

Zdroje sú tam 24V 0,5 A.Pri Rocketoch píšu spotrebu 8W,čiže pri dvoch to bude 16W.PoE má spotrebu pri 230V 0,2A.Nejak sa mi nedarí vypočítať normálnu spotrebu za rok,koľko to proste celé zožerie za 1 deň/1 rok,aby som získal cenu za 1KWH.Potrebujem to pre bytové družstvo.Vie mi s tým niekto pomôcť?Ďakujem.
 
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rado3105
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 11:12 #108020
Majster


Joined: Júl 11, 2008
Posts: 2311

To ohladom toho vyssieho vykonu rocketa na 24V oproti 12V je aj realne overene?
cez to 8 port poe mam pocit ze mame viacero bodov kde pustame viac ako 5A....co to moze sposobiť?
 
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midnight_man
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 11:22 #108021
Majster


Joined: Feb 14, 2011
Posts: 2544

skape ti to časom, všetky vyhadz do smeti a prerob sajty na 24V... Wink
 
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rado3105
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 11:32 #108022
Majster


Joined: Júl 11, 2008
Posts: 2311

a to s tym rocketom na 12 a 24V mate niekto overene?
 
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midnight_man
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 11:38 #108024
Majster


Joined: Feb 14, 2011
Posts: 2544

tak neskusal som to ale pocul som od viacerých, cize na tom nieco bude.
 
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rado3105
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 13:22 #108029
Majster


Joined: Júl 11, 2008
Posts: 2311

http://community.ubnt.com/t5/Wireless-N ... lse#M46259
tu som to hodil....
plati to aj pre ptp? ak ano tak tam uz len 20% vyssia priepustnost dost pomoze...
 
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psichac
Post subject: RE: Napajanie  PostPosted: 29.12.2014 - 17:58 #108032
Basic


Joined: Júl 20, 2012
Posts: 94
Location: Bratislava
server3 :
mas tam teda 16W spotrebu, teraz ide o to ci sa jedna o spotrebu z 230V alebo z 24V.
berme najskor ze je to spotreba z 24V. berme ucinnost zdroja (pritiahnem za vlasy) 70% a teda 16W na 24V ti bude znamenat 20,8W na 230V.
z toho sa da vypocitat ze za jeden den nonstop prevazdky potiahne 0,5kWh a za rok teda 182,5kWh.

ak je to spotreba na 230V, tak je vypocet jednoduchsi - vtedy by ti za den spalili len 0,384kWh a za rok 140,16kWh

vypocet den = spotreba x 24h
vypocet rok = vypocet den x 365
jednoduche...
 
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airbilly
Post subject: RE: Napajanie  PostPosted: 30.12.2014 - 22:58 #108057
Guru


Joined: Mar 13, 2005
Posts: 1867
Location: Nitra
rado3105 wrote: ›http://community.ubnt.com/t5/Wireless-Networking/Rocket-lower-power-using-12V-true/m-p/1137530/highlight/false#M46259
tu som to hodil....
plati to aj pre ptp? ak ano tak tam uz len 20% vyssia priepustnost dost pomoze...

je to tak, overene na viacerych bodoch. s nano m5 ten problem nemame. pri nanobeam to neviem.
 
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server3
Post subject: RE: Napajanie  PostPosted: 01.01.2015 - 12:29 #108064
Ucen


Joined: Aug 11, 2008
Posts: 537

psichac wrote: ›server3 :
mas tam teda 16W spotrebu, teraz ide o to ci sa jedna o spotrebu z 230V alebo z 24V.
berme najskor ze je to spotreba z 24V. berme ucinnost zdroja (pritiahnem za vlasy) 70% a teda 16W na 24V ti bude znamenat 20,8W na 230V.
z toho sa da vypocitat ze za jeden den nonstop prevazdky potiahne 0,5kWh a za rok teda 182,5kWh.

ak je to spotreba na 230V, tak je vypocet jednoduchsi - vtedy by ti za den spalili len 0,384kWh a za rok 140,16kWh

vypocet den = spotreba x 24h
vypocet rok = vypocet den x 365
jednoduche...


Diky moc za info.Dako tak mi to tiez vychadzalo,ale nebol som si isty ci to pocitam spravne.Dohodli sme sa na rocnom najme aj s elektrikou 25€ čo mi vyhovuje,kedze tam nebudem pridavat dalsie zariadenia.
 
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