Generator

[solarman216]

Well finally got my head around the control system today, one key switch turn on and the rest is automatic, the the decompression levers are set due to the shut down procedure on last shut down, so injector pump solenoid is energised, contractor is energised to put 24v into DC side of alternator, and it spins up to a fair speed, enough to produce AC which operates a relay to power the decompresser solenoid, engine fires straight away, as full AC is produced another relay powers the main AC contactor, ... on turning key switch off injector and decompresser solenoids drop out and main AC contactor drops as well, the spring controlled de compressors revert to the start condition, engineering at its best, well pleased, and so is the Mrs as she can control it from home with only one switch, even she can get her head round that, on/off simples, Rick

[rustic]

Originally Posted by solarman216

What a difference between this and the SDMO rubbish, stuck a 3 Kw load on it and it hardly noticed, the big test will be my electric air compressor, not been able to use it on the SDMO, this is the control box, but do not need lots of what is in there, so will sort it out when more time, Rick

Wow, looking at that control panel, it looks like Faraday designed it.
Selenium plate rectifiers, I've not seen them for a long time.
They were popular in the 60's before semi conductor diodes became popular.
I also noted a replacement electrolytic capacitor, cable tied at the top.
Keep an eye on this, capacitors in warm environments have a habit of leaking, and then going short circuit as they dry out. Often splitting the case.
It was probably a later replacement for an earlier wax coated paper capacitor.

So note the details on it, operating voltage and capacitance in uf just in case it breaks down. Capacitors are usually the first item to fail in any power supply application.

This is true old fashioned engineering, I'm sure it will provide many years of service.



Rustic

[solarman216]

Originally Posted by rustic

Wow, looking at that control panel, it looks like Faraday designed it.
Selenium plate rectifiers, I've not seen them for a long time.
They were popular in the 60's before semi conductor diodes became popular.
I also noted a replacement electrolytic capacitor, cable tied at the top.
Keep an eye on this, capacitors in warm environments have a habit of leaking, and then going short circuit as they dry out. Often splitting the case.
It was probably a later replacement for an earlier wax coated paper capacitor.

So note the details on it, operating voltage and capacitance in uf just in case it breaks down. Capacitors are usually the first item to fail in any power supply application.

This is true old fashioned engineering, I'm sure it will provide many years of service.



Rustic

points noted, the reason it is cable tied is because it had suffered vibration damage and lost one of its wires as I pulled it about the other became detached, as it is Ali both ends could not solder new wires on but found some push on type that with a bit of modification held quite well but wrapped it with cable ties to make sure, the solder ends of this are still coated with the yelowish varnish/shelack of the original so leads me to believe it is original equipment, I would have replaced it but had nothing of similar value, but yes it will out last me that is for sure, when it starts it is a dream, and rock solid, Rick