Inverter building using Wiseguys Power board and the Nano drive board


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KeepIS

Guru

Joined: 13/10/2014
Location: Australia
Posts: 1846
Posted: 01:18am 22 Jul 2024      

This 2AWG 35mm2 cable is rated at 188A continuous. The Weld Flex rated at 220A is a bit thicker and did not feel as flexible in cold weather, decided to go with first cable.

Each toriod will only be required to handle around 3kw continuous, and that would be for around 1 hour a day worst case, so a total of 6kW continuous for 1 hour, the current single 3 stack inverter can do that, and start huge Induction motor loads.

A lot of 2AWG cable from typical electronic and electrical outlets appears to have a very thick but still flexible covering, however some of it is only rated to 150A with no indication of duty cycle.

That 150A tinned copper cable (I know tinned is dearer) is currently almost twice the price that I payed for the 188A cable, and 15 months ago the 150A cable was 30% cheaper, even then it was still a lot dearer than this higher rated.

2 B&S (35mm2) 188 amp Copper Cable Single Core Australian Made
Nom Area: 32.07mm2
Rated to 188 amps Continuous Use
Applications: Battery and Starter Cable, Inverter, Dc-Dc Systems
Conductor: OXYGEN FREE Plain Copper Wire to AS/NZS 1125
Insulation: V90 PVC to AS/NZS 3808
Australian Made
UV Stable
5V90 PVC Cable

As with the first 3 stack toriod, a heat gun on low heat is used to warm the cable on each pass through the toroid, especially each bend, it sure makes it easy to pull straight and get tight curves around the toroids, and shortly after removing heat, the cable holds shape and does not try to unravel.
 
I will also seal the crimp connectors when final lenght has been determined.




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Edited 2024-07-22 11:20 by KeepIS