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Author Topic: A serious battery bank  (Read 16302 times)
todthedog
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« Reply #30 on: January 01, 2014, 02:35:01 PM »

 facepalm hysteria  hysteria  hysteria
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Kidwelly South Wales
camillitech
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« Reply #31 on: January 04, 2014, 06:48:58 PM »

Hi Luke,

I wonder what rate a commercial consumer gets I did see the rate but for the life in me cannot remember what it was, I was just surprised it was so much, but then I've been 'off grid' for that long and my parents electricity bill is unfathomable to me. When I lived on the grid you got charged a certain price per kwh and that was that.

are you allowed access to the battery rooms continuously, or are there restrictions? Do you have any specialist fire fighting gear - fixed or portable?

They're a complete 'no go' area, kept permanently locked and the door is alarmed. Access is via a 'permit to work' and only allowed if accompanied and with the drives/chargers disengaged. There are two Stat-X http://www.statx.com/ generators in each room, one fell off at sea trials and it cost over a grand to replace it  Shocked

Hi Philip,

I'm the unfortunate sad person that just loves looking at batteries  Roll Eyes

The battery volume is much greater than a cubic metre of diesel, althought invertor, motor is probably comparable to a diesel engine in size including all the auxilliaries, any views on this?

I guess that at the end of the day the whole system takes up far more space because it is in essence a standard diesel/electric ship with batteries, however the beauty of using wires instead of shafts is that you can stick your generators and batteries anywhere. The actual 375kW permanent magnet motors that drive the Voith untis though are incredibly compact, far more so than a 500hp diesel and marine gearbox.



They, like all the drive cabinets and inverters are water cooled  Shocked


Hi CM, if you don't get anywhere with buying them online, PM me and I'll post you some.



Cheers, Paul


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http://lifeattheendoftheroad.wordpress.com/

'Off grid' since 1985,  Proven 2.5kW, Proven 6kW direct heating, SMA SI6.OH, 800ah Rolls, 9kW PV ,4xTS45, Lister HR2 12kW, , Powerspout pelton, Stream Engine turgo, 60 x Navitron toobs and a 1500lt store. Outback VFX3048 and 950ah forklifts for backup,
biff
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« Reply #32 on: January 04, 2014, 08:52:38 PM »

Do they travel Paul,?
                Or do they just play locally.Antrim has a very good shinty team.In fact one of the best in Ulster.I had two uncles who were founder members of one very famous shinty club1928.
                                      Biff
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camillitech
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« Reply #33 on: January 04, 2014, 09:15:02 PM »

Do they travel Paul,?
                Or do they just play locally.Antrim has a very good shinty team.In fact one of the best in Ulster.I had two uncles who were founder members of one very famous shinty club1928.
                                      Biff

Well I never Biff, I must confess at not knowing anything about the game, other than it makes footie, basketball  and rugger look like croquet. It has a devout and serious following in these parts but I steer well clear of 'team sports', in fact any sport for that matter. My only forays into the whole 'league' type thing have been escorting the Dude to various inter school football fixtures and I just don't 'get it'. Normally sane parents start screaming profanities and talking in a language I don't understand, it's nay wonder the Arabs and Jews cannae get on.

Cheers, Paul 
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http://lifeattheendoftheroad.wordpress.com/

'Off grid' since 1985,  Proven 2.5kW, Proven 6kW direct heating, SMA SI6.OH, 800ah Rolls, 9kW PV ,4xTS45, Lister HR2 12kW, , Powerspout pelton, Stream Engine turgo, 60 x Navitron toobs and a 1500lt store. Outback VFX3048 and 950ah forklifts for backup,
Philip R
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« Reply #34 on: January 05, 2014, 12:14:31 AM »

Hi Paul,

I like the look of your battery bank too. Grin It in something to be proud to be associated with, it is not sad.

I would like to show you a picture of the 1900Ah 240 V batteries that I replaced when I worked in the power industry back along. Problem is that I cannot show them on such a forum. However, what I can say is a constructive criticism of the design of the battery bank aboard your ship, namely the apparent lack of bracing of the cells to the racks, and the racks to the floor. Should the unfortunate vessel suffer a sideways impact, say into quay in a gale or some bad driving, the battery cells could fall off the side of the rack, or the rack tip over on the floor, renderring the installation unusable and at risk of short circuit and fire.

Back along, when my station batteries were replaced with new, the existing Corsican pine battery racks had to go (back to my place) and be replaced with steel bolted frames with side bracing to stop cells falling out (plante type). The design was to satisfy a seismic requirement ( do not quote me) used in california. The stands were quite impressive.  The ones aboard the ship, unfortunately, although impressed with the ships batteries, the stands look a tad unstable (bit like a supermarket shelf!)
I Like the motor room & the voith thrusters, who makes the motors?
No problem with water cooled motors and power electronics. Just need to keep an eye on any loss of water from the system, and when making any repairs to leaks, do not compromise any galvanic isolation by use of conducting hoses in place of insulating types fitted.   
What is going on having a pert clamp on overhead steel pipe on a new ship. thought these clamps were for repairs after commisioning and away from repair shop for proper repair ( gasket in flange)?

Regards, Philip R
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camillitech
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« Reply #35 on: January 05, 2014, 08:48:04 AM »

Yes Philip, I see what you mean about the bracing, the individual modules are only held in by two M6 studs and that perspex shield. The racks themselves are quite well secured though, albeit with rubber mounts. As for the 'Axilock' couplings, the only welded flanges are on fuel and exhaust fittings!!! I guess the skill of proper pipe fitting has been lost along with the rest of the shipbuilding industry.



Just look at that pipe hanger  fume

Best you didn't show a picture on here of a 240v battery, Biff would be wanting one  Grin Mind you that bank is 740v when fully charged  Shocked

Cheers, Paul
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http://lifeattheendoftheroad.wordpress.com/

'Off grid' since 1985,  Proven 2.5kW, Proven 6kW direct heating, SMA SI6.OH, 800ah Rolls, 9kW PV ,4xTS45, Lister HR2 12kW, , Powerspout pelton, Stream Engine turgo, 60 x Navitron toobs and a 1500lt store. Outback VFX3048 and 950ah forklifts for backup,
todthedog
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« Reply #36 on: January 05, 2014, 03:39:12 PM »

Not sad but really interesting. Love the pics Paul. Spent an hour in the summer with a couple of mates looking at a heavy duty tug stationed at Brest. Couldn't work out what certain bits did asked a passing sailor, soberingly told to auto wash off nuclear fallout.

Re shinty. A long time ago at primary school, the lads played footie, the girls shinty. Some bright teacher suggested the boys play the girls at shinty, this is long before equality. Naturally the boys were banned from wearing shin pads, unmanly,they are after all only GIRLS. You can guess the result stuffed out of sight, bruised and bloodied. Perhaps that was the idea, more of likely a staff room bet, lesson learnt. If there is nasty heavy work to be done get a woman to do it.  Grin

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Kidwelly South Wales
Fionn
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« Reply #37 on: March 06, 2014, 01:59:06 PM »

A visit to the battery manufacturer's website suggests they have gone into liquidation, hopefully replacements will be available in a similar form factor when the time comes!
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PV - 2.75kW East, 1.5kW South, 2.5kW West. 3 x Flat Plate Solar Thermal with side arm FPHE on 268L cylinder
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