Today's Message Index:
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1. 08:44 AM - Re: Voltage Regulator Questions (farmrjohn)
2. 09:39 AM - Re: Voltage Regulator Questions (user9253)
3. 11:19 AM - Re: Voltage Regulator Questions (user9253)
Message 1
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| Subject: | Re: Voltage Regulator Questions |
Thanks all for the replies.
To clarify question 1 about combining the A and S lead, the circuit breaker protection
is a 5 amp fuse vs. the 2 amp shown on the diagram, which is consistent
with Zeftronics instructions. In that case would it be OK to combine per the
Z-11 diagram?
I was asking about replacing the wire because there really isn't that much available
extra length on the existing to replace the existing faston connectors.
I do have the pidg connectors.
John
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=506377#506377
Message 2
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| Subject: | Re: Voltage Regulator Questions |
About jumping terminals "A" and "S" together: The short answer is yes. The long
answer is:
Those two terminals already do get connected together when the alternator switch
is on. The path is from terminal "A" to the alternator "B" lead, to the 60
amp current limiter, to the main power bus, through the small fuse to the alternator
switch, to terminal "S". Since the 2 amp fuse has been replaced with a
5 amp fuse, terminals "A" and "S" can be jumped together and the wire from "A"
to "B" can be removed. Everything should work fine for a few years. There
could be a future problem if resistance develops due to corrosion in the circuit
between the main power bus and terminal "S". The voltage dropped across that
resistance will be greater now that the circuit is also carrying alternator
field current. The voltage regulator will then sense a lower voltage than bus
voltage. And the voltage regulator will increase field current to increase
the voltage on terminal "S". This will result in over voltage on the main power
bus. During the annual condition inspection, measure the voltage drop while
under load between the main power bus and voltage regulator terminal "S".
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Joe Gores
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http://forums.matronics.com/viewtopic.php?p=506378#506378
Message 3
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| Subject: | Re: Voltage Regulator Questions |
Oops, I was wrong. Looking at the schematic in post #1 above, it is not clear
how the relay is wired. So I take back what I said about terminals "A" and "S"
already being connected together when the alternator switch is turned on.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=506380#506380
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