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Author Topic: Cable lengths feeding a Soladin 600  (Read 1510 times)
Cliff top
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« on: February 13, 2009, 02:54:48 PM »

Just wondering if perhaps the 6m 13amp extension I am feeding across to the inverter might be losing some of the hard earned power from my wheel.

How close should one put the inverter to the meter? do you reckon 6m is too long? I could always lengthen the PMA tails to bring the low voltage AC right across to the inverter and sit that next to the meter.
Anyone any experience/thoughts?

PMA has its 3 phase AC output for 200mm before going into the rectifier. I then have 4m very thick pure copper speaker cable to take the 24-40vDC to the inverter which is plugged into a heavy duty 6m extension.

Cliff
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Paulh_Boats
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« Reply #1 on: February 13, 2009, 03:17:42 PM »

The 17th wiring regs and best practice regs say the inverter should be wired into a final circuit direct from the fuse box, using 2.5mm and an AC isolator at the inverter, with a DC isolator on the other side.  Don't worry though as mine is plugged into a socket also!

However if you want to be paid for grid tie I think it will have to comply with the regs, otherwise the distribution company might not give you the necessary paperwork for G83 compliance.

You won't get much loss in the AC cable, much more in the DC due to higher amps so keep the DC cable shorter.

-Paul
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Justme
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« Reply #2 on: February 13, 2009, 04:22:52 PM »

You won't get much loss in the AC cable, much more in the DC due to higher amps so keep the DC cable shorter.

Or much much thicker.

If you can give us actual figures for the volts & watts/ amps & current speaker cable mm2 CSA size we can workm out the potential losses.

Justme
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Cliff top
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« Reply #3 on: February 14, 2009, 11:53:38 AM »

the worst loss will probably be the 4m of 12 gauge ofc copper speaker cable. this would have ~40vdc at 4a  so even that won't be too bad Huh surely
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