[ARC5] Dynamotor Capacitor

J. Forster jfor at quikus.com
Wed Mar 26 16:07:06 EDT 2014


Au contraire! Your info tells me what I wanted to know.

> Well, first there is this statement in the Navy manual: "...The DC
> resistance of the shunt field winding is 225 ohms."

If no Series field is given, there is no series field. It a Shunt, rather
than Compound machine.

> It also states that each winding of the armature is 25 ohms on the HV
> side, and 0.4 ohms on the LV side.
>
> The schematic simply shows a shunt-field winding connected across "M"
> (motor) and none across "G" (generator).

Of cource. The field coil provides the H field for both the input and
output machines.

> Not very much help there...

Everything I wanted. Thanks.

> However, from the above it seems reasonably clear that they have simply a
> shunt field winding and no series one.

Correct.

> Besides, I thought that a series field winding was used primarily to get a
> large DC motor up to speed quicker.

It can also help stabilize the speed with increasing load.

> Ken W7EKB
>
Thanks,

-John

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