Re 190's.
Not much to learn from dissecting a swollen 190. Most of the time the
swelling is caused by electrolytic capacitors that have failed. Some
very high current capacitors actually have brackets to bolt them down to
minimize swelling.
Frank BZP.
BZ Products INC.
8801 Gravois Rd.
St.Louis MO 63123 USA
314-644-2490
www.bz-products.net
On 9/14/2016 1:58 PM, Benn Kilburn wrote:
You guys should really cut one of those swelled up ones and share the
photos with us :)
Benn Kilburn
SkyFire Energy Inc.
780-906-7807
On Sep 14, 2016, at 11:14 AM, Jerry Shafer <jerrysgarag...@gmail.com
<mailto:jerrysgarag...@gmail.com>> wrote:
The 190's had component issues which case them to balloon up
Jerry
On Sep 14, 2016 10:11 AM, "William Miller" <will...@millersolar.com
<mailto:will...@millersolar.com>> wrote:
Colleagues:
We have M190s fail in beach installations. Some have had the
cases swell up like there is a tumor inside. I haven't cut them
open to see what's inside because they need to go back to
manufacturer.
William
On Sep 14, 2016, at 9:32 AM, Jerry Shafer
<jerrysgarag...@gmail.com <mailto:jerrysgarag...@gmail.com>> wrote:
Mike
I also work near the ocean, its all around me here in Hawaii, we
have had the 190's fail but not to environmental conditions and
very few issues with 215's. Do you have any pics of the damage
as l have seen very little salt issues.
Jerry
On Sep 13, 2016 9:11 PM, "Mike Nelson"
<mdelectricso...@gmail.com <mailto:mdelectricso...@gmail.com>>
wrote:
I've had so many Enphase failures it's kind of ridiculous.
We install most of our systems near the ocean so corrosion
has played a big factor. The newer micro inverters are
holding a much better, 215 and 250's. I have learned over
the years that SMA makes the best product, and I mostly
stick with them. Sometimes micro inverters are requested or
really fit the installation particulars, so I still use them
occasionally. I haven't yet tried solar edge.
Michael D Nelson
MD Electric & Solar, Inc.
707-684-0064 <tel:707-684-0064> mobile
707-884-1862 <tel:707-884-1862> office
www.mdelectricsolar.com <http://www.mdelectricsolar.com>
Sent from my iPhone
On Sep 13, 2016, at 6:23 PM, Rebecca Lundberg
<rebecca.lundb...@gmail.com
<mailto:rebecca.lundb...@gmail.com>> wrote:
Esteemed wrenches,
I'm hoping the experience of this list can help give us a
broader perspective on the current market performance and
as a secondary concern, tech support (or lack thereof),
from solar micro-inverter manufacturers.
Are others having much trouble with micro-inverters? We
have had repeated issues with several different brands on
our systems in Minnesota:
- 8 Enphase systems with mostly M210 and M215, have had to
repeatedly go back to sites to replace units. The new
replacement ones seem to be lasting better (we sure hope
they will). Enphase is harder to contact in recent years,
but we're happy they at least provide a predictable
stipend. Are you also having to replace a lot of this brand
of product? Are the newer models holding up better?
- We gave a new inverter busbar design concept a try
(tenKsolar) and though the micro-inverters were supposed to
take turns and be 'redundant,' the ones with APS
micro-inverters needed 100% replacement and the ones with
Lead Solar micro-inverters have a problem where if one of
them fails it appears to send a signal to all the rest so
the entire busbar stops working -- in action it's far from
redundant. When we purchased the tenKsolar Rais Inverter
Bus (RIB) the spec sheet didn't tell us what brand of
micro-inverter they would use as the OEM so we couldn't
research the viability of the product or company or
warranty stipend (or lack there-of) of the micro-inverter
OEM. We assumed it was a tenKsolar product and they would
provide warranty replacements, service, and tech support,
but our experience has been far from that. When something
goes wrong tenK says 'it's not our product that's failing'
because they don't actually manufacture the micro-inverter
(it's an OEM), the micro-inverter company says 'it's not
our product' because tenKsolar has it wired and used in a
very unique manner specific to the tenKsolar product, so
both manufacturers are backing away from any
responsibility. A 25-year warranty on the inverter busbar
is a great concept but if/when something goes wrong there
is no support and no apparent warranty at all except maybe
they will send us a new component that needs several hours
of work to re-install, so either the installer does the
warranty work for free or the customer has a very
unexpected expense to get their system back up and running
a year or two after it was installed; we think both
scenarios are unacceptable (from our installer perspective
:-), do any of you have experiences you can share here?
I'm wondering if the climate in MN makes us an anomaly.
Based on these micro-inverter experiences we feel like the
Rapid Shutdown rule has forced us to use dc optimizers on
residential applications whether we want to or not -- is
that pretty much what all of you are doing too?
Rebecca Lundberg
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