navitron
 
Renewable Energy and Sustainability Forum
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Anyone wishing to register as a new member on the forum is strongly recommended to use a "proper" email address - following recent spam/hack attempts on the forum, all security is set to "high", and "disposable" email addresses like Gmail, Yahoo and Hotmail tend to be viewed with suspicion, and the application rejected if there is any doubt whatsoever
 
Recent Articles: Navitron Partners With Solax to Help Create A More Sustainable Future | Navitron Calls for Increased Carbon Footprint Reduction In Light of Earth Overshoot Day | A plea from The David School - Issue 18
   Home   Help Search Login Register  
Pages: 1 [2] 3 4   Go Down
  Print  
Author Topic: tristar mppt60  (Read 10461 times)
billi
Global Moderator
Hero Member
*****
Offline Offline

Posts: 8923



WWW
« Reply #15 on: January 14, 2012, 11:45:50 AM »

Do you have  the  recent  temperatures from your area in France ?  Is it getting down to -10   during the day ?
Logged

1.6 kw and 2.4 kw   PV array  , Outback MX 60 and FM80 charge controller  ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw  windturbine
eabadger
Hero Member
*****
Offline Offline

Posts: 895


« Reply #16 on: January 14, 2012, 01:13:31 PM »

lowest so far since november was today at 8am (still dark) it was -1, by the time the sun got round to the pv, it was 8*.
does get cold here, but so far this winter very good weather, due to get down to -3 on Monday.

so chance of voltage going above 150v is slim in my opinion, and even if it did, protection? maybe i just got a dud one, dont mind as long as it is replaced, and soon, as very sunny today.

Thank for other messages, I am an electronics engineer by trade, but have been off work due to an eyesight problem, used to repair down to SMD level, now have a job seeing where the digger bucket is, perfect eyesight in right eye, but all perception of depth lost due to bad left eye, if they come the old will cost route, I will get it back and repair it myself, but thought at 590 and only 4 months old I would return it, lets see, maybe I am worrying for no reason.
Make of the panels, not sure, oem, I have monitored voltage over the last few days, and today which is cold and sunny, no more than 21v.



steve
Logged

1600w PV main array at 24v, excide 2v 1000a forklift cells now x 2, 320w PV secondary array at 12v. Enfield 1944 ex RAF 5.6kw diesel genset (now in pieces, big ends gone), Petter AC1 28v diesel charging set at 2.8kw.
1kw wind turbine.
26kw wood stove back boiler to underfloor heating and dhw
billi
Global Moderator
Hero Member
*****
Offline Offline

Posts: 8923



WWW
« Reply #17 on: January 14, 2012, 01:26:53 PM »

Morningstar have a string sizing calculator on their Website  and  at -10  it looks borderline all right,  with 6 modules in series

At 0  it says  configuration optimal

But do not know your Modul ..... so used a standard 80 Watt one

Perhaps  it would help to indicate that there where no  such low degrees

Just a thought

Billi
Logged

1.6 kw and 2.4 kw   PV array  , Outback MX 60 and FM80 charge controller  ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw  windturbine
eabadger
Hero Member
*****
Offline Offline

Posts: 895


« Reply #18 on: January 14, 2012, 01:35:30 PM »

my last reply was to that effect, stopped working at 11*, but had no reply to this email, maybe they will post me a new unit now? i used the string calculator before going for the 6 x3 strings.
i have all the logs since fitting in late August and see no volts above 126v. but some errors saying high array current volatge, but again volts below limit, well below, in the manaul it shows the current being clipped when the array volts go above 140v, going back to my orriginal post, i ahave never seen above 1090w from a 1440w array, so maybe it was clipping to low? and then commited suicide due to being incorect?

steve
Logged

1600w PV main array at 24v, excide 2v 1000a forklift cells now x 2, 320w PV secondary array at 12v. Enfield 1944 ex RAF 5.6kw diesel genset (now in pieces, big ends gone), Petter AC1 28v diesel charging set at 2.8kw.
1kw wind turbine.
26kw wood stove back boiler to underfloor heating and dhw
eabadger
Hero Member
*****
Offline Offline

Posts: 895


« Reply #19 on: January 25, 2012, 10:36:29 AM »

Ok, company have now said a new unit will be sent, the Tristar MPPT has a over voltage safety circuit, so in theory no matter how high the array voltage it will not pop.
I think mine had been dud from new, but how do you know, when it is all new? And no comparison?

I will report back and update status of Tristar mppt output, but I am going to drop strings down from 6 to 5 by adding some extra pv, we have some that are miss sited in the winter, with very little output, so could have full 1600w, 20x 80w units.

steve

Logged

1600w PV main array at 24v, excide 2v 1000a forklift cells now x 2, 320w PV secondary array at 12v. Enfield 1944 ex RAF 5.6kw diesel genset (now in pieces, big ends gone), Petter AC1 28v diesel charging set at 2.8kw.
1kw wind turbine.
26kw wood stove back boiler to underfloor heating and dhw
nick disjunkt
Newbie
*
Offline Offline

Posts: 21



WWW
« Reply #20 on: February 01, 2012, 04:07:21 PM »

Sorry to hijack the thread, but I recently brought a morningstar MPPT 45a and 8 x 100w (18v vmp) panels. I had intended to run 2 strings @48v nominal (well within the 150v max) but the morningstar string calculator is saying to use 4 strings of 2 panels with 800w, or just 2 panels per string with 2 strings. Why is this? I would rather use 4 per string to keep the voltage drop down and cable size to a minimum.
Logged

billi
Global Moderator
Hero Member
*****
Offline Offline

Posts: 8923



WWW
« Reply #21 on: February 01, 2012, 04:39:56 PM »

Hi  

can it be  that you used the Tristar  45  instead  in the morningstar string calculator and NOT the Tristar MPPT 45


  Wink  Billi
« Last Edit: February 01, 2012, 04:41:36 PM by billi » Logged

1.6 kw and 2.4 kw   PV array  , Outback MX 60 and FM80 charge controller  ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw  windturbine
nick disjunkt
Newbie
*
Offline Offline

Posts: 21



WWW
« Reply #22 on: February 02, 2012, 09:30:09 AM »

Hi  can it be  that you used the Tristar  45  instead  in the morningstar string calculator and NOT the Tristar MPPT 45
  Wink  Billi

 whistlie I hope you're not accusing someone of my intellect of making a stupid mistake like that  whistlie

On an unrelated note, I have resolved the issue.
Logged

billi
Global Moderator
Hero Member
*****
Offline Offline

Posts: 8923



WWW
« Reply #23 on: February 02, 2012, 09:57:39 AM »

Stupid   is only Morningstar ......  for not giving a  new advanced/different   product  another name, than one of their  older products  fight
Logged

1.6 kw and 2.4 kw   PV array  , Outback MX 60 and FM80 charge controller  ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw  windturbine
nick disjunkt
Newbie
*
Offline Offline

Posts: 21



WWW
« Reply #24 on: February 02, 2012, 01:41:58 PM »

Stupid   is only Morningstar ......  for not giving a  new advanced/different   product  another name, than one of their  older products  fight

very true. The supplier initially sent me the old PWM controller by mistake so it's not just me that gets them muddled up.
Logged

Tinbum
Hero Member
*****
Offline Offline

Posts: 1164


« Reply #25 on: June 24, 2014, 09:26:19 PM »

Old thread but my Tristar mppt60 seems to have gone phut. Cry

I've been having lots of problems with my broadband line and was trying some things with the router, the problem is actually the bt line but thought I'd see if I could temporarily improve things. Somehow it changed the static IP of the Morningstar so I uploaded the correct settings, turned the Morningstar off and then when I turned it back on the MCB to the batteries blew. Tried another MCB, as  I know these draw quite a current when first connected, but no joy.
Logged

85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
clockmanFR
Hero Member
*****
Offline Offline

Posts: 3584



WWW
« Reply #26 on: June 24, 2014, 10:54:41 PM »

Sorry to here Tinbum, that's a b.ugger.
Logged

Everything is possible, just give me TIME.
Tinbum
Hero Member
*****
Offline Offline

Posts: 1164


« Reply #27 on: June 24, 2014, 11:20:56 PM »

Well, the good side to it is and despite what others have said about them, Morningstar replied to my e mail within about 2 minutes asking me to check the resistance between the battery + and - terminals on it and that if it was less than 10Kohm the unit is damaged and should be replaced under warranty. It measured 0.2!!
Logged

85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
Tinbum
Hero Member
*****
Offline Offline

Posts: 1164


« Reply #28 on: June 27, 2014, 07:25:13 PM »

Well I have just received tracking information for the new unit being sent to me from America. Can't fault them one little bit- they have been fantastic. extrahappy
Logged

85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
Tinbum
Hero Member
*****
Offline Offline

Posts: 1164


« Reply #29 on: June 30, 2014, 07:33:07 PM »

Having now taken the old unit apart I have found one 0.25 (+vat) failed component, so the parts on order and then once that's fitted tomorrow I'll see if anything else is damaged.
Logged

85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
Pages: 1 [2] 3 4   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines
SMFAds for Free Forums
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!