William
I have a grid tie system with a Outback Radian and Xantrex 600 volt charge
controller with 4kw of modules and it sells back flawlessly. I have
revenue-grade monitoring on the system and I am very happy with the output.
David Katz
Sent from my iPhone
On Apr 16, 2012, at 6:51 AM,
David,
What did you choose for revenue-grade monitoring?
Comments?
Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094
On 18-Apr-12 4:01 AM, David Katz wrote:
William
I have a grid tie system with a Outback Radian and Xantrex 600 volt charge
controller with 4kw of modules and it sells
Nathan, the problem should not be in the size of the GFDI breaker, put the GFDI
between the array and the charge controller. certainly your array voltage is
100 or greater, meaning you have 45 amps of less through the breaker. Also if
you have a large array parallel the arrays, and run each
Hi William,
I agree with you on the GFP.
There is a work around for the larger breaker size and that is to install a
prebreaker from the array then to the GFP breaker then to the CC.
You then get to work on the smallest breaker size for wiring, if my
understanding of the code is correct.
jay
HI All,
I'm looking for a contact pressure gauge with built in switches.
( this is an example..http://www.indumart.com/P84.pdf)
I am looking to turn on/off a hydro with pressure increase/decrease.
But I just can't seem to find one to buy for anything less than $600.
SPECs:
switching 24vdc
William
I am using an Elkor meter with RS485 output connected to a SolarLog1000. There
are two current transformers connected to the Elkor meter. I ran each wire from
the 240 vac from the main load center through a current transformer to the
Radian ac input. Then I ran the Ac output line from
im curious david, how you measure the output of the radian since the system is
grid tie/w battery backup. the only way i have seen to do this is with a kv2c
meter on each 120 volt leg. is that how you are monitoring the output of the
inverter?
thanks,
todd
On Wednesday, April 18,
why not just use a well pump pressure switch?
todd
On Wednesday, April 18, 2012 8:29am, jay peltz j...@asis.com said:
HI All,
I'm looking for a contact pressure gauge with built in switches.
( this is an example..http://www.indumart.com/P84.pdf)
I am looking to turn
We have a 7 year old Outback Dual GTFX 3624 system with around 1100 AHR of
24 volt battery backup supplied by 2400 PV watts - 1200 PV watts tracked
[wins by 32% output over the fixed array] and 1200 PV watts fixed on the
roof of our office. Consistently the utility back feed is 750-900 watts/hour
William,
Square D used to make a QO breaker body without the overcurrent trip
mechanism. Internally it just had the switch contacts and it was
intended for use as a disconnect in locations where overcurrent
protection was already provided. The reason I mention this is that the
80-amp PV GFP
Hello Wrenches,
We have been asked to participate in a small bid on Washington State. I am
having a hard time finding made in Washington grid-tied inverters and solar
modules in order to fulfill their rebate requirements. So far I have come
across Silicon Energy and Itek Energy. A
A lot of good replies have come by here but here goes another one...
The GFP cannot be used for dual purpose as a disconnect for battery
or PV input and you are not allowed to un-ground the system by turning
off the DC input or output breaker.
4 AWG should be fine for 80 amps. If you need/want
I should have mentioned battery-less grid tied. Thanks!
Best regards,
Mark Dickson,
NABCEP Certified Solar PV Installer T
Oasis Montana Inc.
_
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jonathan
Hill
Sent:
Mark
Try http://bluefrogsolar.com/wa-made-solar-products I believe that they
are now shipping a Washington made micro inverter. There is one other
microinverter, but I do not believe that they have passed UL yet and have
not gone public.
Bill Hoffer
Bill Hoffer PE
NABCEP Certified Solar PV
William,
There have been too many fires where GFP failed to operate correctly to
argue that they are really good at what they are supposed to do. But, I
think it is inappropriate to say they don't really work at all. How many
fires could have or would have happened without the GFP devices?
Bob do you know of a 4x80 GFDI breaker? Midnight has a 2X80 correct? and
Outback has a 2X80
Wire size use the tap rule, 10 feet 10% of wire size.
From: b...@midnitesolar.com b...@midnitesolar.com
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Sent:
On 4/18/2012 4:41 PM, Darryl Thayer wrote:
Bob do you know of a 4x80 GFDI breaker? Midnight has a 2X80 correct?
No, but we have a 1 X 63 amp / 300 volt GFP that can be configured as 2
X 63 amp GFP.
boB
and Outback has a 2X80
Wire size use the tap rule, 10 feet 10% of wire size.
Darryl, OutBack makes GFDI in single, double and quad pole flavors: 80 Amps
per pole, 1/2 Amp between the ground and grounded conductor.
The current method of ground fault protection is an imperfect beast,
absolutely. However, it's been the industry standard and both the Code and
standards
Hi Kent,
I wanted to add a little more re positive grounding. OutBack's communication
structure, like many other manufacturers, is referenced to Negative. If you
install multiple devices in a positive ground system and connect them together
via a Hub and add disconnects/overcurrent protection
Here is Robin's 2 cents worth on this subject
In a PV input circuit to a charge controller that has a 63 or 80 amp
DC-GFP, it is perfectly legal to use a small wire. That is because you
will also have the appropriate sized breaker in series with the DC-GFP
breaker. If you want to use
Phil,
While using a dual GFDI to open both positive and negative array
conductors is the safest thing to do in battery systems, and it is
clearly compliant with 690.5 to do so, it is not consistent with the
manufacturer's instructions or the device listing. So that leads back to
a violation
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