Stormin 4,458 #1 Posted May 9, 2017 I acquired an Allam generator with a Petter AA1 diesel engine some time ago. Dragged it out from it's hiding place in the workshop today, while having a sort out/move around. I don't know what year it is, but guess around the 1980's. Details of the genny are as follows. KVA 2.5. COS 0.8. Serial No. 1022 2P. 110 - 230V. Single phase. Cycles 50. AMPS 17.4 - 8.7. Made by E.P.Allam & Co. Ltd. Arterial Rd, Eastwood, Leigh-on-Sea. Essex. The Petter details are... AA1 No74343 AA1. 3 BHP. 3,000 RPM. Runs and generates like a good 'un. Noisy beast though. Haven't a clue what the excitation socket is for. I'll just leave it to the imagination. Any ideas of age anyone? Had a bit of a Google, but drew a blank. 2 S1g and pmackellow reacted to this Share this post Link to post Share on other sites
the showman 4,074 #2 Posted May 9, 2017 Its where you plug your ear phones in to see if you get excitation, 1 Stormin reacted to this Share this post Link to post Share on other sites
pmackellow 2,738 #3 Posted May 9, 2017 Hefty looking piece of kit Norm Good workhorse though Share this post Link to post Share on other sites
S1g 579 #4 Posted May 9, 2017 From the bits ive done with generators, the excitation sockect is to re excite the capacitor. Used to do it with a 12 volt battery on quite a few generators that I purchased dead, half the time it would get them working again and a nice tidy profit. Share this post Link to post Share on other sites
Wristpin 400 #5 Posted May 9, 2017 (edited) Substantial bit of kit. Possibly spent its working life on construction sites etc. Very interesting that it has a built in Excitation socket to make it easy to restore the residual magnetism when lost. So much easier than having to take the end cover off the alternator to "flash" it. EDIT Some additional reading on the subject!! http://www.dieselduck.info/machine/03 electricity/flashing_generator.htm Edited May 9, 2017 by Wristpin Additional material Share this post Link to post Share on other sites
the showman 4,074 #6 Posted May 10, 2017 Put the engine in your Raider 10 project and put the genny on the front of Blackhorse . Share this post Link to post Share on other sites
Stormin 4,458 #7 Posted May 10, 2017 Thanks Angus. Useful info. Yeah! Anything like that, Chris. Share this post Link to post Share on other sites