New Off Grid Inverter Charger

[Halfcrazy]

I have passed this on to my web guru

[dgd]

Nice to see the integrated MPPT modules, the one box B17 will do everything concept.
What about a nice grunty PWM only solar controller 200 to 300A at 12,24,48,120 volts?  I can see the usefulness of MPPT for wind turbine and water turbine systems but with the ever lowering cost of PVs and their easy availability there is a valid design approach  of just maxing out the number of PVs and PWM charging batteries and not be concerned about power point tracking.

dgd

[dgd]

Since this appears to be a modular plug in Chassic for various modules I was wondering if there is a power bus and a computer/data bus in the chassis? If so then will the specs and details be made available for this?
dgd

[grgdgreek]

A little too quiet here .....
Hmmm...:-) :-)

[Westbranch]

the worker bees are very buszzzzy   

[jimmyaz]

Just wish there's a more solid release date... I am dying to make the decision whether to buy the Conext SW inverter now to change my system from off grid to grid support... or wait for the Midnite Inverter/Charge controller.

I already have the Classic 150, 24v AGM 210ah bank.  Wanting to upgrade to grid support inverter and possibly go to Li-Ion.

It is worth waiting for the MNB-17 since I already have the Classic 150?

Advise anyone?

[Westbranch]

When you read the released information you might want to note that the first ones to hit the market will be 48 V systems... 

I see you have a 24 V setup as do I...  Robin said there may be a later offering in lower voltages...

[BobWhite]

Is there any word on the release of tje 48 volt?

[Vic]

Hi Jimmyaz,   welcome to,  or back to the Forum.

The B17 product line will most probably start at the higher end of the maximum power spectrum,  IMO.

It may take MN quite some time to develop a 24 V model,   as higher power systems really want to operate at higher battery voltages  --  48V.

The Schneider Conext SW (or whatever they are calling them this month),  is an inexpensive inverter.   Again,  IMO,   the B17 is not designed to compete directly with the lower end SW inverters ...

Many of the advantages of the B17 become clear at the high end of the power scale,   and the SWEs are not there.

When I tossed out the idea of the B17,   realized that it was not exactly in your  application ball park ...

FWIW,  Vic

[jimmyaz]

Hi Jimmyaz,   welcome to,  or back to the Forum.

The B17 product line will most probably start at the higher end of the maximum power spectrum,  IMO.

It may take MN quite some time to develop a 24 V model,   as higher power systems really want to operate at higher battery voltages  --  48V.

The Schneider Conext SW (or whatever they are calling them this month),  is an inexpensive inverter.   Again,  IMO,   the B17 is not designed to compete directly with the lower end SW inverters ...

Many of the advantages of the B17 become clear at the high end of the power scale,   and the SWEs are not there.

When I tossed out the idea of the B17,   realized that it was not exactly in your  application ball park ...

FWIW,  Vic

The 24v or 48v is not a problem for me as because currently I have 4x 12v battery to make up for the 24volts,so I can change it to 48volts in a flash.  Plus I wanted to go up to 48v anyway.  Soon will probably even upgrade to Li-Ion.  Kept seeing them Tesla Model S salvage battery on Ebay and very tempting.

As for price point, so the B17 would be more like in the range of the Outback Radian series? 

My other question is, the B17 is design to sit in a shelves right?  seem like the depth is at least 12 inches? 

Don't know if I can wait... Normally there's at least a 6months delay for any company to release new product... Most people saying the end of this year for the B17,so probably mean Mid 2018. 

But the 80amps AC bypass is a huge benefit, the Conext SW can only do 30amps.  I have made so many wrong decision, trying to make the right one this time, but so hard. 

[Westbranch]

Bump...

Ryan,  I think SPRING    is just around the corner....  Any news to share?

[EW Zuber]

I have noticed that on my Outback VFX3648 there is a ~20khz sine wave modulating the peaks of the 60hz sine wave. I found this when an audio lead opened up at one end on my triamped Hafler stereo and allowed enough voltage to develop at 20khz (but not enough at 60hz to cause a buzz) at the input to blow out two of my Eaton tweeters when I cranked it. Using the 20khz sig at the amp output as a trigger it sync'd perfectly with the modulated signal on the AC wave form so I know they are one in the same. The signal is inaudible to my ears.
Just thinking it would be nice to either have a built in low pass filter in the inverter or an add-on unit to provide clean power.
I know this would likely be a really low priority but just in case this signal has caused other problems I thought I'd throw this out there.

[mike90045]

A 4KVA transformer would clean that 20khz right up.   But's pricey, and heavy. 

You could try a simple pi notch filter to suck the 20Khz too, but it would have to withstand full on AC line voltage 24/7 (use 600V rated gear in it)  and the coil would have to handle 4KVA, but much less than a full transformer


http://www.calculatoredge.com/electronics/bw%20pi%20low%20pass.htm
http://www.calculatoredge.com/electronics/ch%20pi%20low%20pass.htm

[EW Zuber]

Mike, I have a couple old Best 4KW 48V inverters here from back in the 1980's that have large square wire transformers and some really large chokes. Was thinking of using a couple chokes and caps to form a low pass filter.
Actually could use two 4KW transformers back to back as a 1:1.

I was amazed to see the amplitude of this 20khz sinewave when the tweeters were open. As I recall it was up around 100 VP/P.

[onanparts]

Recycled MS prototype boards. Cuz I was bored....