ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades PTO generator source

It appears in the picture that there is some sort of gearbox that might speed the RPMs up to the generator. It's a pretty nice-looking and quality-built unit, but I can't imagine that it would be very efficient to operate.

So, is it safe to assume that the large connector can handle an 80 amp/ 230 volt load? That is pretty impressive when you think about it and it sure could come in handy in an emergency.

I have that feeling most days of the working week.

Yes, it gears up from 430 r.p.m. to the 3000 r.p.m. needed to obtain 50Hz from a 2-pole generator.



Yes, the big blue connector is a 125A IEC309/BS4343 type, 2-pole plus earth. These are the standard industrial connectors here these days. The smaller connector on the right is the 16A version, like these.

The pin configuration and locating lug position determine the voltage, 1ph/3ph, etc. The higher-rated connectors have the same general lug/pin positions as the 16A versions but are just physically larger.

The connectors are also color-coded for the highest voltage present (phase-to-phase or phase-to-neutral/ground).

Paul. This ATN series mecc alte alternator is specifically built by the OEM as a PTO tractor generator and is not something cobbled together by a backstreet shop. As far as my translation can ascertain, there should be electronic voltage control of +/- 1% of unloaded voltage on board, capable of holding the voltage steady with from -5 to +30% of nominal rated PTO speed. Frequency will be up and down though I suppose. On checking, I found that mecc alte also built my 6kva 3-phase workshop alternator, which has run as sweet as a nut for over 2 years.

Alan