Hopefully? Another 48vdc-240vac Toriod Inverter build.


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KeepIS

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Joined: 13/10/2014
Location: Australia
Posts: 1798
Posted: 10:56pm 01 Jun 2023      

This is true of course, I made a clamp sleeve and "partly" solved the resistance problem for the Cable clamping part. The Fuse connection itself was not the problem.

I've decided that using any fuse in this location is not really useful in any case.

Anyway, I've fitted the Sensor I mentioned. The Sensor supply is via an isolated 12v module, in keeping with the design of the inverter to stop unneeded ground problems, the connection for current trip is ready to be tested and is simple.

Note: The supply drop out is around 15v Inverter DC input, and it's the first thing to power up "before" the Contactor has energized. There are no output glitches under any condition. Any fault during power up and run will trip the Drive and kill the Big Contractor and isolate the Inverter from the Batteries.  

A nice addition made easy by using this type of sensor is an Analogue meter showing Peak DC input. Meter FSD is 600A and it indicates the 540A startup correctly, along with most big loads, it just needs a Peak "Hold & Decay" mod to show the very fast spike from certian switched loads.
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Edited 2023-06-02 09:57 by KeepIS