[ARC5] Dynamotor Capacitor

[Kenneth G. Gordon]

On 26 Mar 2014 at 9:31, J. Forster wrote:

> The dynamotor is actually more complex than I thought originally. It has
> been pointed out to me that the armature and field are not independent, as
> assumed in most analyses. Rather, they are coupled by their mutual
> inductance.
> 
> I would like to know if the input side of the dynamotors (mainly for the
> receivers) are Shunt or Compound wound (ie, do they have shunt or shunt &
> series fields).

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

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).

Not very much help there...

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

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

Ken W7EKB