Re: [RE-wrenches] 120 Vac and 12Vdc mixed distribution system

John; I had quite a few Trace DR series in the field back in the day, but only one left alive today, fortunately in my guest cabin and not at a client's house. They had a pretty OK waveform for a modified square wave inverter, but some modern appliances were just a no-go with a DR, including some

Re: [RE-wrenches] 120 Vac and 12Vdc mixed distribution system

I have a new client wanting to upgrade an old system with DR inverter, 4 golf cart batteries Trace C40 CC and two small PV panels. The system was definitely installed by a professional with breakers and switched and I am looking at the photo the customer emailed to me and other than upsizing the

Re: [RE-wrenches] Large transformer losses

Should be easy enough to look up on the manufacturer’s website. William Miller Miller Solar.com 805-438-5600 www.millersolar.com On Fri, Apr 26, 2024 at 3:54 PM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi all. > > Anyone know what the tare loss and efficiency is of a

Re: [RE-wrenches] Large transformer losses

According to the nameplate 6% @ 170°cOn Apr 26, 2024, at 4:33 PM, Darryl Thayer via RE-wrenches wrote:Do you know the transformer impedance?On Fri, Apr 26, 2024, 5:54 PM Jay via RE-wrenches wrote:Hi all. Anyone know what the tare loss and efficiency is of a

Re: [RE-wrenches] Large transformer losses

Do you know the transformer impedance? On Fri, Apr 26, 2024, 5:54 PM Jay via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi all. > > Anyone know what the tare loss and efficiency is of a 75 kw transformer? > And it would be run mostly at 1-10kw max. > > This one specifically. >

Re: [RE-wrenches] Large transformer losses

Hi Jay I have gotten this type of information directly from Hammond, I would think from transformer to House line loss should be considered. From my Experiance, people go to 400 amp services mostly for circuit count. I have measured a few transformers in past but I don't know where data is now.

[RE-wrenches] Large transformer losses

Hi all. Anyone know what the tare loss and efficiency is of a 75 kw transformer? And it would be run mostly at 1-10kw max. This one specifically. hammond SG3L0075PE I’m just curious about it. The situation is 240vac grid at the street, 600’ to the house 400 amps. Why 400 amps on a house

Re: [RE-wrenches] 120 Vac and 12Vdc mixed distribution system

I’ve had no issues with qo over the years for 12v except if they get dirt in them from mud dobber wasps. JayOn Apr 26, 2024, at 9:05 AM, Darryl Thayer via RE-wrenches wrote:I agree with John also.  one of the better-performing off-grid houses I worked on used a 48 to 12-V Samlex converter. The

Re: [RE-wrenches] 120 Vac and 12Vdc mixed distribution system

I agree with John also. one of the better-performing off-grid houses I worked on used a 48 to 12-V Samlex converter. The 12-volt thick-walled refrigerator was about 4 amps at 12 volts. The lights, radio, and small TV drew very few amps each/ I also used an Outback 3648 inverter, which the

Re: [RE-wrenches] Grid-Tied Radian Force Discharge

Maverick and Mac I am using Flextime here so that we are only using Grid Zero mode from 2-6am, when there is no solar coming in. The rest of the time, the system is in Grid tied mode so that we can take advantage of as much solar as possible. But the battery bank is two strings of the NSB190 FT

Re: [RE-wrenches] Grid-Tied Radian Force Discharge

Hello Dave, Be sure you calibrate the flexnet and the inverter voltage. My gut feeling is that the Delta voltage you have is too tight. If you have the system on Optics, I'd set the LBCO pretty low, then observe how much voltage sag (or where your voltage cliff is) you are getting at the