Author Topic: Classic 150 Maximum input power  (Read 2164 times)

dgd

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Re: Classic 150 Maximum input power
« Reply #15 on: March 03, 2016, 11:36:26 PM »
...
I will then be hitting the classic with an Input voltage of approx 65v...This should
Help to alleviate some of the heating issues!
You will seldom be seeing an input of 65 volts as thats the open circuit voltage, its the max power voltage
of 53v or less that you will see most often.
Thats an ideal input voltage for a 24volt battery bank

dgd
Classic 250, 150,  20 140w, 6 250w PVs, 2Kw turbine, MN ac Clipper, Epanel/MNdc, Trace SW3024E (1997), Century 1050Ah 24V FLA (1999). Arduino power monitoring and web server.  Off grid since 4/2000
West Auckland, New Zealand

Vic

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Re: Classic 150 Maximum input power
« Reply #16 on: March 05, 2016, 05:14:42 PM »
   ...I've decided from listening to you
Guys here to rework the input to the classic
To 4 parallel strings!
I will then be hitting the classic with an
Input voltage of approx 65v...This should
Help to alleviate some of the heating issues!
Also I'm thinking of reworking my 6 x 6v
12v Bank into a 4 cell-24v bank and a
2 cell-12v bank just for native 12v applications
On the RV...The 24v bank will strictly be used
For inverter AC loads!   ...

Hi S t,

OK,  just going to single PVs all in parallel (STC Vmp=54.7 V) should help considerably,  as should going to  24 V.

Have more Fun,  and Good Luck,   Vic
Off Grid - Two systems -- 4 SW+ 5548s, Surrette 4KS25 1280 AH X2@48V, 11.1 KW STC PV, 3X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes.  Thanks MN for Great Products/Service/Support!

Solar trucker

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Re: Classic 150 Maximum input power
« Reply #17 on: March 05, 2016, 10:48:10 PM »
dgd...and Vic..Thanks for the advice on the input voltage...re: parallel strings! I spent today installing
my new Kid controller...Very nice build quality with a solid case and massive heat sinks..One thing
though there is not a lot of room in there for wiring as I used 10 awg for both sides! PV in and Batt in...
A very good set of needle nose pliers came in very handy...Indeed.

Of course, just as I got all the wiring done and flipped the switch, it got cloudy and was late afternoon
but I did get a reading on the Kid's LCD...at least I was able to confirm that everything was working as
it should be...I've had 30 amp, MPPT controllers from MorningStar and Blue Sky Energy and none of them
had the Fit and Finish of "The Kid"..
Just Curious, what do you guys think of Converting 24V to 12v?  CDN-VT posted a remedy for me...
I know there is residual loss and efficiency issues involved, plus the Converter shown in the photo is
only 300 watts continuous which will just run my tv and not my microwave!
1.65 KW-RV 12V system of Sunpower Panels Classic 150 with BTS and WBJR and a Kid-6 x 6V US Batteries, 696 AH FLA-Magnum Energy MS-2812 Inverter, All Interior and Exterior Lights in the RV were replaced with LED's

Ottawa Canada (Summer) - SW Arizona (Winter)

dgd

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Re: Classic 150 Maximum input power
« Reply #18 on: March 06, 2016, 04:20:35 AM »
... and of course you realize that by reconfiguring to a 24volt battery system that you can double the PV  input wattage to the Classic, if your trailer roof has the real estate another two or three more of those 327 watt PVs would work nicely. Not only increasing the maximum PV power but on poor weather days maybe giving enough to keep the fossil fuel from charging the battery bank.

dgd
Classic 250, 150,  20 140w, 6 250w PVs, 2Kw turbine, MN ac Clipper, Epanel/MNdc, Trace SW3024E (1997), Century 1050Ah 24V FLA (1999). Arduino power monitoring and web server.  Off grid since 4/2000
West Auckland, New Zealand

Solar trucker

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Re: Classic 150 Maximum input power
« Reply #19 on: March 06, 2016, 08:43:39 AM »
Yes..That's a good point! It's always easy to charge on sunny days, but when the weather is less than
ideal, ie: quite overcast, it's nice to have more cells! 
1.65 KW-RV 12V system of Sunpower Panels Classic 150 with BTS and WBJR and a Kid-6 x 6V US Batteries, 696 AH FLA-Magnum Energy MS-2812 Inverter, All Interior and Exterior Lights in the RV were replaced with LED's

Ottawa Canada (Summer) - SW Arizona (Winter)

CDN-VT

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Re: Classic 150 Maximum input power
« Reply #20 on: March 06, 2016, 11:51:55 PM »

Just Curious, what do you guys think of Converting 24V to 12v?  CDN-VT posted a remedy for me...
I know there is residual loss and efficiency issues involved, plus the Converter shown in the photo is
only 300 watts continuous which will just run my tv and not my microwave!

You have a 12Vdc microwave ? Your not using any inverter? I I would doing a 24Vdc inverter up 120Vac .
The 12V should be for lighting & the 12Vdc water pump etc.. AC I would be on a mini split & drive it off the solar , as I do in my non moving house.

VT

EDIT ADD:
I don't think ST understands that the Converter is not running his OLD inverter.
24Vdc would use a 24Vdc inverter  ST.
« Last Edit: March 08, 2016, 11:48:31 AM by CDN-VT »
Canadian Solar 350W 37.6 VOC  30.6 VMP 8.22 ISC 7.87 IMP ,-15 c +30c max  4 strings in 2 in Series for 24v Classic 150 -1020 Ah  Freezers & fridges ~~~ Second Array same panels of 3sx3 parallel for 24 V Classic 150 -440 Ah Outback Barns & out blds.
48Vdc almost done,11Strings up of 3s11P same panels

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Re: Classic 150 Maximum input power
« Reply #21 on: March 09, 2016, 10:11:00 PM »
yeah I do understand...
1.65 KW-RV 12V system of Sunpower Panels Classic 150 with BTS and WBJR and a Kid-6 x 6V US Batteries, 696 AH FLA-Magnum Energy MS-2812 Inverter, All Interior and Exterior Lights in the RV were replaced with LED's

Ottawa Canada (Summer) - SW Arizona (Winter)

Solar trucker

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Re: Classic 150 Maximum input power
« Reply #22 on: March 09, 2016, 10:13:33 PM »
If you look back on the first page, you'll see that I'm looking for a 24v inverter??
1.65 KW-RV 12V system of Sunpower Panels Classic 150 with BTS and WBJR and a Kid-6 x 6V US Batteries, 696 AH FLA-Magnum Energy MS-2812 Inverter, All Interior and Exterior Lights in the RV were replaced with LED's

Ottawa Canada (Summer) - SW Arizona (Winter)

CDN-VT

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Re: Classic 150 Maximum input power
« Reply #23 on: March 10, 2016, 01:18:24 AM »
Yes I did read that , but when you said that the 300W continuous converter was to small for the microwave , is what stumbled me.
my 720 converter is great , I run a 480 ,720,240 all off of 24V systems .

VT 
Canadian Solar 350W 37.6 VOC  30.6 VMP 8.22 ISC 7.87 IMP ,-15 c +30c max  4 strings in 2 in Series for 24v Classic 150 -1020 Ah  Freezers & fridges ~~~ Second Array same panels of 3sx3 parallel for 24 V Classic 150 -440 Ah Outback Barns & out blds.
48Vdc almost done,11Strings up of 3s11P same panels

Solar trucker

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Re: Classic 150 Maximum input power
« Reply #24 on: March 10, 2016, 10:40:41 AM »
Got all the Re-Wiring done yesterday(changed the series setup to parallel strings)...Did notice a change
in the Heat generated in the Classic!

Woke up this morning and saw this beautiful Sunrise!  Just had to share it with everyone!...Enjoy!
1.65 KW-RV 12V system of Sunpower Panels Classic 150 with BTS and WBJR and a Kid-6 x 6V US Batteries, 696 AH FLA-Magnum Energy MS-2812 Inverter, All Interior and Exterior Lights in the RV were replaced with LED's

Ottawa Canada (Summer) - SW Arizona (Winter)