11-25-2021, 10:41 PM | #21 | |
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Re: starter amps
Quote:
The reason we build 12 volt systems, (and most modern aircraft at 24V, and tugboats at 32V) is to lower the current for the same power. Less resistive losses and as mentioned you can use smaller conductors. But it is not a power limitation. |
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11-26-2021, 08:17 AM | #22 |
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Re: starter amps
I always think of it as current draw. In other words, a load like a series wound electric starter motor will only draw the current it needs to function. The amount of current needed will vary depending on the torque it needs to turn and the condition of the motor. The voltage is just the electromotive force that the current uses to flow. A higher voltage will allow for less current being needed to do the same job even though the current changes same as the voltage so it's not quite proportional. The 6-volt starter will certainly turn faster if not modified to work with the higher voltage but it still won't have to draw as much amperage with twice the amount electromotive force and current available to it. It would have around 4X the power as on 6-volt.
Last edited by rotorwrench; 11-26-2021 at 09:29 AM. |
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11-26-2021, 04:34 PM | #23 | |
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Re: starter amps
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11-27-2021, 12:14 PM | #24 |
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Re: starter amps
These threads always seem to take on a life of their own. The man asked a simple question and I think we chased him away.
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11-28-2021, 08:38 AM | #25 |
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Re: starter amps
This starting motor data is from Dyke's Encyclopedia, and it applies to a starting motor in new condition:
Terminal Grounded (+) Normal Armature Speed 1500 RPM Amperage, Normal 175 Normal Running Torque 3 Lbs-Ft
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11-28-2021, 03:44 PM | #26 |
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Re: starter amps
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