Those devices were susceptible to catching fire. I saw a hole burned in
a roof from one of them. It is a great idea however.
_Drake Chamberlin_
_Athens Electric LLC_
_Ohio Electrical Contractor's License 44810_
_NABCEP Certified PV Installation Professional_
On 2025-04-18 11:46, Glenn via RE-wrenches wrote:
There was a company that sold a mlpe that went online with a single
module in a string, that when temps were low, would bypass the module
and prevent string overvoltage.
I don't believe the company is in business any longer.
We re powered a PV system that had been installed with them a couple
years ago. Most of the devices were charred failures.
-Glenn
On Apr 18, 2025 11:36, Travis Knipple via RE-wrenches
<[email protected]> wrote:
Has anyone encountered a system to use something like a Zener Circuit
to clamp a string input at 600Voc?
I've encountered many systems which, after designing for 600Voc, end
up with ~300-350Vmp, which is less than ideal on a long-distance run.
Since Voc should be a rare situation at the 2% temp, it seems like it
would be better to clamp the voltage in those situations, and design
for optimum performance in normal operation.
--
Travis Knipple
Senior Engineer
Hudson Solar Solutions LLC
Rhinebeck, NY 12572
518-539-8040 x408 | [email protected]
PVIP# PV-111821-013612
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