Joel,
I agree with Ray. I did the exact same thing with an MX 60 upgrade and some
more modules. Customer was very happy with the improved performance. I had no
luck getting a replacement PM-60 and that was several years ago.
John Blittersdorf
-Original Message-
From: Joel David
Hello Ray,
Thank you for the quick reply. You are right. It's time to move on from the
Pulse stuff. I will recommend this solution to my customer. I did something
similar to my Trace system when I replaced the C40 that came with the Trace
Modular Cabinet with an externally mounted Outback MX60
On 11/7/2011 11:15 AM, Larry Crutcher, Starlight Solar Power Systems wrote:
Hi Glen,
That model is a disconnect switch. What the system needs is a 4 pole
transfer switch, automatic or manual, to connect the PV source to the
charge controller.
Hello Gary Willit,
Yes, you've grasped my concept
Could you use the old Dankoff trick of running through 2 poles in series of a
300 v rated switch? That used to be approved, before we had all these 600 v
rated equipment.
R. Walters
r...@solarray.com
Solar Engineer
On Nov 7, 2011, at 1:16 PM, Larry Crutcher, Starlight Solar Power Systems wr
Ray,
Yes, the idea was for a low cost way to add battery backup to existing high
voltage PV grid tie systems, not new construction.
The second inverter does not need to be able to sell since that is handled by
the grid tie inverter. It simple passes grid power to loads and maintains the
battery
Just curious, what's the advantage of switching at the array vs. just
using a Sunny Island or Outback system? Seems this would cost more, and
have less efficiency, since you would still have the battery float
losses, backup inverter idle losses, in addition to the 2nd grid tie
inverter losses.
Hi Glen,
That model is a disconnect switch. What the system needs is a 4 pole transfer
switch, automatic or manual, to connect the PV source to the charge controller.
Hello Gary Willit,
Yes, you've grasped my concept precisely and I agree, getting a high voltage DC
transfer switch may nix this
Today's controllers are so much better both in terms of battery
management, and power efficiency, that I replace the old Pulse stuff
even if they're not dead. I usually keep the PC250 as a DC load center,
and pop a new controller off the top. This is often a good time to add a
few modules to th
Wrenches,
My customer has a circa 2001 Pulse PC250 with a faulty PM-60 circuit board
TC-750, REV D2 (the microprocessor U1 has v2.5 and v1.01 written on a label
on it). Does anyone repair or have replacements for PC250 PM-60 circuit
boards? If not, what do you recommend? Thank you in advance
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