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Is this a correct connection schematic | 11 comments (11 topical, editorial)

Re: Is this a correct connection schematic (3.00 / 0) (#6)
by Volvo farmer on Tue Mar 11th, 2008 at 02:05:33 PM MST
(User Info)

He cannot wire for 96V with an MX60

Maximum Voc for a MX60 is 150V, I believe it suspends operation at anything over 140V as well. KC130s have a Voc of 21.9V Eight in series would be over 175Voc at STC of 77F.

If he lives in a cold climate, it would not be advisable to even wire for 72V, as Voc at 77F would be 131.4V. KC130's temperature coefficient is .0821V/degree C. So at 0F Voc per panel is 23.95V x 6 (for 72V nominal) = 143.7V

With 20 panels he should be able to wire for 60V without bumping up against the MX60s limits.

Which brings me back to my original point :-)

Volvo Farmer

May you always have success in your quest to irritate those who you despise. -Ben Goode
[ Parent ]

Re: Is this a correct connection schematic (3.00 / 0) (#8)
by DanB (danb@*no spam*otherpower.com) on Tue Mar 11th, 2008 at 04:05:50 PM MST
(User Info) http://www.otherpower.com/

ah - yes, forgot. Your dead right Volvo Farmer!
He should definitely hire a professional and not be listening to people 'round here ;-) (but he should get an MX60)

[ Parent ]

Is this a correct connection schematic | 11 comments (11 topical, 0 editorial)

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