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10th June 2016, 09:35 PM
#21
I am he, fear me
Originally Posted by
dom14
snip...
sense wire have connection issues or the fuse on it dies and the alternator puts out some 18+ volts.
That kills the alternator dash warning light(assumption on my part).
Your assumption is wrong, a sense wire fault won't blow the lamp
When the alternator is running on all 3 phases the lamp has approx zero voltage drop which is why it goes out, 12, 14 or 18 volts doesn't matter
Last edited by the evil twin; 10th June 2016 at 09:40 PM.
Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.
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10th June 2016 09:35 PM
# ADS
Circuit advertisement
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10th June 2016, 09:38 PM
#22
Patrol God
So you want to run a double redundancy system? Come on , do you really think a manufacturer would do that, unless it was for the luxury or military markets?
Breakdowns keep the economy ticking over
My advice is: not to follow my advice.
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10th June 2016, 09:39 PM
#23
Legendary
Originally Posted by
the evil twin
Your assumption is wrong, a sense wire fault won't blow the lamp
I believe you. But, you still have to give me the facts behind your conclusion. Otherwise, I'll only keep annoying you here.
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10th June 2016, 09:42 PM
#24
Legendary
Originally Posted by
mudnut
So you want to run a double redundancy system? Come on , do you really think a manufacturer would do that, unless it was for the luxury or military markets?
Breakdowns keep the economy ticking over
No argument there mate.
The "typical altenator circuit" I downloaded from internet and uploaded here suggest two separate pins(wires) for warning lamp circuit & trigger/field/exciter circuit. So, I was guessing it's been already out there. It's that I just don't have it, 'cos I gota GQ?!
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10th June 2016, 10:09 PM
#25
Legendary
Originally Posted by
the evil twin
Your assumption is wrong, a sense wire fault won't blow the lamp
When the alternator is running on all 3 phases the lamp has approx zero voltage drop which is why it goes out, 12, 14 or 18 volts doesn't matter
Yeah, that would mean the regulator puts out "-18 volts"(on the lamp circuit) [or is it +18V] and that would roughly give -6V to the warning lamp(-18V+12V), so the warning lamp would come on, but nowhere near enough to cook it(I'm obviously speculating here with loose knowledge).
Yeah, my argument was apparently based on a wrong assumption as well as poor understanding.(obviously forgetting the base fact of how the warning lamp circuit works)
Does this mean mudnut's worry about alternator lamp blowing is NOT likely to happen?!!
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10th June 2016, 10:14 PM
#26
Legendary
If I disconnect the sense wire, would the dashboard alternator warning light come on?!
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10th June 2016, 10:22 PM
#27
a little knowledge can be very dangerous
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10th June 2016, 10:58 PM
#28
Patrol God
I ain't worried about it. Just thought you would like to know about it, cause that is the sort of great guy I am
Last edited by mudnut; 11th June 2016 at 12:03 AM.
My advice is: not to follow my advice.
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11th June 2016, 12:02 AM
#29
I am he, fear me
Originally Posted by
dom14
snip...
Yeah, that would mean the regulator puts out "-18 volts"(on the lamp circuit) [or is it +18V] and that would roughly give -6V to the warning lamp(-18V+12V), so the warning lamp would come on, but nowhere near enough to cook it(I'm obviously speculating here with loose knowledge).
Nope...
If the Alt is putting out 18 volts at the Reg Diode Pack then that is also the voltage that will be (WRT earth or -ve if you prefer) at the B+ and therefore the Battery positive, the Ign cct and everywhere else in the vehicle.
There will not be anywhere in the vehicle supply buss that is at 12 volts so there is no 18-12=6
Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.
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11th June 2016, 12:05 AM
#30
I am he, fear me
Originally Posted by
Makka
a little knowledge can be very dangerous
ROFL... and a lot can be bloody frightening
Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.
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