QUOTE: (start)
NORTON:
For your consideration. A DC motor that has not overheated and shorted out its windings will never draw more than its stall current.
If the load is too great causing it to stop moving it will simply draw its stall current. Nothing more. As long as its moving it will draw less than its stall current.
Most DC motors are NOT stall motors. They will draw their stall current until they overheat and short out.
Tortoise uses stall motors. Not to be confused with the motors in your engines.
Pete
QUOTE: (end)
Thanks for the detailed helpful information. This would have resolved many issues if brought up much sooner.
The stall motor rated (stop stall amperage) is rated the same as the (start-up amperage).
Completely knowing how a Tortoise switch machine actually functions, will resolve many issues.
I did some re-search when it comes to the Tortoise switch machine. I wanted to know exactly how it electrically functions.
A switch machine stall motor is always drawing DC voltage.
Tortoise switch machine: (3 pole stall motor) (12 VDC) (0.016 amperage) (750 ohms) (0.192 watts) = (0.00026 mechanic HP)
In comparison: (2 pole motor) (12 VDC) (.50 amperage) (24 ohms) (6 watts) = (0.008 mechanic HP)
A regular DC motor has around (0.008 mechanic HP), while a Tortoise switch machine has only (0.00026 mechanic HP).
That is why there are many so many step down gears (ratio 275:1) being required to operate this switch machine.
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