Friday, August 26, 2016

SSPA Project - 50Vdc @ 200 Amp - First Power ON

"Smoke test" = OK :-)  So that's good.  I didn't mux anything up.  I checked and tripple checked everything.  Trying NOT to explode anything.  And that effort appeared to pay off.

I worked most of the day on getting things ready to fire up tonight.  The only thing I don't have wired up is "bank2" as well as the Ammeter.  I have the shunt, and wire just have to wire that all up.  I'm waiting for some large battery posts to run DC wire out of the case.

So there are basically 2 'banks' (1 and 2) each 'bank' had 4 dps-1200fb supplies running 12.5vdc in series.  Which equals 50.0vdc.  Then the two banks are setup in parallel.  Each bank is capable of 100 amps, combined the entire system is capable of 200 amps.

The new Step-Start works, but needs some tweaking.  It has the INRUSH down from 11 amps to 8.5.  But I think with some more attention to it I can get that down below 1/2 of that.  I didn't have anything setup as a jig to test that function until now, so I should be able to make some good progress on that.

I'm using 2 AWG to run < 6 ft up to where the Amps will be located.

Here is a video showing the state of things during the test.  And how it went.



Tuesday, August 23, 2016

SSPA Project - 50Vdc @ 200 Amp Power Supply UPDATE

Top left to bottom right....

40A 240v Relays on heatsinks
40A 240v Relays w/Thermistors (relays short after 3 seconds)
Center 240v 60A EMI Filter
400A/50mv ammeter shunt
250A Distribution Block
12vdc Supply
(2) Timers (for 40a/240V RELAYS)
-------
(4) dps-1200fb (2 banks) 



SSPA Project - 50Vdc @ 200 Amp Power Supply UPDATE

Top left to bottom right....

40A 240v Relays on heatsinks
40A 240v Relays w/Thermistors (relays short after 3 seconds)
Center 240v 60A EMI Filter
400A/50mv ammeter shunt
250A Distribution Block
12vdc Supply
(2) Timers (for 40a/240V RELAYS)
-------
(4) dps-1200fb (2 banks) 



Monday, August 15, 2016

SSPA Project - 50Vdc @ 200 Amp Power Supply CASE

Over the weekend I started building the case for this power supply.  It's a 4U Computer Server Case that I got for $70.00 off Ebay from NewEgg.  I gutted it completely and using some aluminum angle stock I made some pseudo rails.  Using bits from the guts that came with the case I was able to 'stack' the dsp-1200fb's so that air can flow around them a bit, and still gives me room for other things require to operate this power supply.

Here's some Photos of where the project is now.  Everything is still rough as I'm just test-fitting all the bits and pieces still.  But you'll get the idea.









SSPA Project - 50Vdc @ 200 Amp Power Supply CASE

Over the weekend I started building the case for this power supply.  It's a 4U Computer Server Case that I got for $70.00 off Ebay from NewEgg.  I gutted it completely and using some aluminum angle stock I made some pseudo rails.  Using bits from the guts that came with the case I was able to 'stack' the dsp-1200fb's so that air can flow around them a bit, and still gives me room for other things require to operate this power supply.

Here's some Photos of where the project is now.  Everything is still rough as I'm just test-fitting all the bits and pieces still.  But you'll get the idea.