Alternators
Thread Starter
Joined: Oct 2005
Posts: 5
Likes: 0
From: Australia
Alternators
I have conflicting opinions on whether alternators should be turned off in a piston a/c when shut down. Some say doesn't matter - leave them on all the time. Others say turn on after start and off after shut down.
Any more opinions - with a reason???
Any more opinions - with a reason???
Joined: Dec 2003
Posts: 643
Likes: 30
From: Global Vagabond
Re: Alternators
Turn the power supply on before starting the engine and don't turn it off before the engine (& alt) has stopped turning, this is the safest method. The idea is to avoid surges while the unit is rotating.
The alt has a built in anti discharge device (rectifier) so can be left connected to the battery during storage etc. without discharging the batt.
The alt has a built in anti discharge device (rectifier) so can be left connected to the battery during storage etc. without discharging the batt.
Joined: Aug 2000
Posts: 1,776
Likes: 1
From: UK
Re: Alternators
On all ac I have flown, the alternaters MUST be switched off after ESD. This is because the primary coils [exciter coils? - it's been a long time!] are fed from the vital busbar, therefore draining the batteries.
