The Craftmans Shop > New from Old
Puma / Dorman 6LE / MacFarlane B46B / 110 kVA Generator Resurrection
awemawson:
So power came back on after a couple of hours, but in the process seems to have fried my electric gate controller :bang: Much time wasted trying to diagnose sensor problems with a gale blowing, horizontal rain, and diagrams blowing all over the place and getting soggy. Gave up and ordered a new controller card so no food next month :(
Meanwhile big lorry dropped off the new batteries so they are now on charge awaiting time to do a test turn over of the engine.
So the Deep Sea 3110 controller: I forced my way into the rear of my container and brought out the two packages deposited there about five years ago. Reasoning that the smaller one was likely to be the controller mounted in its housing, and the larger one the contactor power fail change over chassis I unpacked the little one.
Logic worked (this time) revealing a brand new 3110 in a nice metal enclosure with what is probably a dedicated power supply (yet to investigate) tucked in the back.
So almost certainly I will retro-fit this control and eliminate the relay control of the original Puma thus simplifying the wiring considerably.
I want to be able to crank the engine over having made sure that there is no chance of it starting, to circulate some oil and check the the oil pressure comes up ok before letting it actually run.
To do this I need to investigate the alternator a bit more - it is internally excited and so far I am unclear where precisely the AVR (Automatic Voltage Control) is located. There is a grille covered clip on plate on it's side with 'something' electronicky with at least a fuse on it's pcb that I can spy in there. Once the engine is turning it will generate volts and I'd like that to be under my control at the time :clap:
awemawson:
So a bit more prodding and poking this afternoon:
First that Alternator Grille : It turns out that it just un-clips and the entire circumference of the alternator is uncovered revealing as suspected, the AVR. Now allegedly this alternator is made by MacFarlane despite not bearing their name anywhere that I have yet found, but the AVR is most definitely made by Markon (another alternator maker) and is an MS1/B 036-060 AVR. All looks in pretty good condition, and the (hopefully) class F insulation revealed in the exciter alternator looks excellent.
Then chasing some engine wiring:
A/The engine seems to have a heat exchanger oil cooler that has an electrical conduit emerging from it carrying a pair of wires, so either a temperature switch or analogue sender I suspect.
B/The 24 volt charging alternator has a remote regulator and it's wiring looks a mess - it will be tidied up or replaced by an integrated one.
C/There is a large 'universal box' bolted to the chassis holding a pair of heavy duty relays - I suspect that these are for the fuel solenoid (which is massive) and the starter solenoid as none of the other control relays look man enough for these jobs.
. . . so the fun continues :ddb:
hermetic:
I am sitting with beer, popcorn, and baited breath......................This is going to be a good one! You could even do one of those " Diesel genny, first start this millenia" YouTube videos. I must admit I am a bit of a sucker for them. GO ANDREW!!
PekkaNF:
Very interesting project.
That is one hell of the size for domestic use, we had a Lister in 1970:s till 80:s and it was in the farm, milking machines and lall - single cylinder diesel, maybe 3kW.
I am interested in starting, running and shut down sequences. Never seen that big generators in close and personal.
Pekka
awemawson:
So this morning I thought that I had better make sure that my Forklift will actually pick this beast up - I don't want to have to employ contractors to shift it about. My Hyster is rated at 2.1 tons and just the Dorman engine is said to weigh 1.15 tons according to the literature I've found.
Pleased to say that it did - forks set wide as possible as the balance isn't easily determined - but 'up she went' :clap:
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