Re: [RE-wrenches] Charging a HUP

Sounds like there is a need for a bigger generator, my gut tells me there is almost enough (but not quite), with 12kw to almost max the chargers and nothing left to feed the other loads. I have found that “on paper” and reality do not always mix well. Getting max theoretical charging capacity

Re: [RE-wrenches] Charging a HUP

Hi guys, The HUP manual specifies minimum charge rate of 136 amps, max at 272, jay peltz power On Feb 9, 2014, at 1:38 AM, RE Ellison wrote: > Sounds like there is a need for a bigger generator, my gut tells me there is > almost enough (but not quite), with 12kw to almost max the chargers and

Re: [RE-wrenches] Charging a HUP

Thanks Jay, We used to be able to figure the max charge rate at 25% of the packs capacity. That might not work with the HUP packs. Glad you have a manual! It is always a good idea to follow the directions in the manuals! Later, Bob Ellison From: re-wrenches-boun...@lists.re-wr

Re: [RE-wrenches] Solaredge inverters w/ backup generator

That's total nonsense. Most of our installs involve a generator, as generators are very common here due to intermittent electrical supply and hurricanes. We also sell and install generators and I am a tech. A decent heavy generator will produce electricity that will fall within the IEEE 1547 specif

Re: [RE-wrenches] Charging a HUP

Hi Bob, While I did see on this list earlier about batteries preferring to charge slowly, some manufactures feel very differently. In my experience the industrial type require a C10ish minimum charge rate, some higher even. The info was on the HUP website jay peltz power On Feb 9, 2014, at

Re: [RE-wrenches] Charging a HUP

Roger the 136-272 charge amps, and the theoretical max of 295 with this system. Hoping for reality of 160 - 200. Fortunately it's a 'good' customer with very efficient running loads, just a bit of a power tool habit and the hydronic heating recirc pump loads. Unfortunately, there have been 3 trades

Re: [RE-wrenches] Charging a HUP

"Has anybody scoped ac line to VFX's under full charge load? I'm curious about harmonics possibly being the culprit " Yes, it's pretty nasty. This is why we stopped using Outback products for off-grid sites with significant use of generator charging. Not only are the chargers really wimpy, we

Re: [RE-wrenches] Charging a HUP

You may also try re-torquing the generator breaker. I have found a gen breaker that would trip intermittently and the culprit was a loose connection on the factory side. On Feb 9, 2014 10:39 AM, "Kevin Pegg" wrote: > "Has anybody scoped ac line to VFX's under full charge load? I'm curious > abou

Re: [RE-wrenches] Charging a HUP

A 12KW generator can produce 250A at 48V, and the breaker should be 12KW *125% or 62.5 amps. You may have an unbalanced load, you probably can only put 6KW per leg of the 240V feed. On Sat, Feb 8, 2014 at 2:46 AM, wrote: > Hi All, > > 3 VFX 3648 > 2 FM 80 > 6.5 kw solar > 12 kw generator > PSX

Re: [RE-wrenches] Charging a HUP

True that on the DC genset, Kevin, but more or less removes the bypass option. Strongly considered breaker replacement as many are susceptible to harmonics, but a real PIA on this generator and haven't gotten around to it yet. Also going to run the gen shed ventilators off the line side of the gen

Re: [RE-wrenches] Charging a HUP

So the breaker is not the generator output breaker? I would put a clamp amp meter on the breaker leads set on Max to record the maximum current when it trips. On Sun, Feb 9, 2014 at 2:23 PM, wrote: > True that on the DC genset, Kevin, but more or less removes the bypass > option. Strongly consi

Re: [RE-wrenches] Charging a HUP

Yes Chris. I've got about 42 on one leg and 35-37 on the other. The transformer keeps the legs balanced to within about 5 amps.Bruce Original Message Subject: Re: [RE-wrenches] Charging a HUP From: Chris Mason Date: Sun, February 09, 2014 11:13 am

[RE-wrenches] 208 V 240 in residential applications

Friends: I feel sort of stupid asking this, but it has never come up for me before: I have inherited an off-grid install gone-wrong. The system is 208 three phase with Sunny Boys and Sunny Islands on a mini grid. It was designed as three phase. I presume this was to increase capability w

Re: [RE-wrenches] 208 V 240 in residential applications

Anything with a motor wants to be intended for 208 three-phase Any heating elements would want to be for three-phase also If you try running 240 stuff on 208 it will ultimately take out the motors they just don't run as well! In a past life I had a chain of convenience stores and one of them wa

[RE-wrenches] Min grid with no direct DC charging

Friends: I have inherited an off-grid install gone wrong. This is a mini-grid with Sunny Islands and Sunny boy inverters. All of the PV is connected in AC coupled mode. There is no direct DC battery charging through a standard charge controller. Is there any downside to this? Thinking

Re: [RE-wrenches] Min grid with no direct DC charging

William, Years ago I designed a large SB/SI system for a high-mountain lodge but never got the job, so this is not tempered by experience. (Years later I was hired as a third-party consultant to review the suggested upgrade to the installation when it didn't

Re: [RE-wrenches] Sunny Island Battery Disconnects

Yes, they make a 3 pole class T fused disconnect. You could have 3 strings fused separately and then combined in a single pull disco, UL listed too. I even have one here, or I can provide their contact info. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electr

Re: [RE-wrenches] 208 V 240 in residential applications

So is this 3-phase system up and running and providing power to single-phase (120 to ground) circuits AND split-phase-requiring circuits (240 phase to phase)? I would think that there would be no problem with the single-phase circuits (if there are any). But what about those split-phase circui

Re: [RE-wrenches] 208 V 240 in residential applications

It depends on the appliance. Some pure resistance heating units will work okay but with a lower thermal output. Other appliances will work if there are internal jumpers that can be reset for 208V operation or terminal blocks that can be rewired for 208V. This is especially true for appliances tha

Re: [RE-wrenches] 208 V 240 in residential applications

Yes, no problem. Lots of commercial installations are 208. Chris Mason Comet Systems Anguilla (264) 235-5670 St. Kitts (869) 662-5670 skype netconcepts NABCEP Certified Solar PV Installer(tm) Renewable Energy Systems professional Generac Generators Factory technician On Feb 9, 2014 4:20 PM, wro

Re: [RE-wrenches] DC Fusing/Breakers for Battery Circuits

Of course the objective in locating fuses is almost a catch-22. On the one hand they should be as close as possible to the batteries, on the other hand you can't locate the fuses in the same enclosure as the batteries as there is a chance that if they were to open, the arcing may ignite any hydroge

Re: [RE-wrenches] Min grid with no direct DC charging

There is a way to override the first battery preservation mode that the SI enters to allow a brief period of operation before killing the batteries (all programmable setpoints) which would allow charging again. -Glenn From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun.

Re: [RE-wrenches] Charging a HUP

We dialed the inverters back to 3.6 kw charge and got a full bulk and EQ with no breaker trip today. Finally got the SG back up to 1.275 - 1.285 after 4 hours @ 61.5. It had me real nervous for a week, being able to get bulk voltage but still only 1.220 - 1.223 SG. Now looking at putting in a capac