Shunt DC Motor

[mdbennett]

Hi-

If a shunt DC motor has a nameplate voltage of 325 V, is that also the armature voltage, or is the armature voltage 325 V - Ia*Ra?

Thanks...

 

[Dark Knight]

Hi-
If a shunt DC motor has a nameplate voltage of 325 V, is that also the armature voltage, or is the armature voltage 325 V - Ia*Ra?

Thanks...

The equation for the voltage at the terminals of a shunt DC motor is given by VT= EA-IARA

I am not 100% sure but I think that the voltage at a nameplate is referred to the voltage at the terminals. If that is correct then VT=325.

 

[Capt Worley PE]

Heh, heh. "Shunt."

 

[mdbennett]

The equation for the voltage at the terminals of a shunt DC motor is given by VT= EA-IARA
I am not 100% sure but I think that the voltage at a nameplate is referred to the voltage at the terminals. If that is correct then VT=325.

So, EA which is the motor EMF is also refered to as the armature voltage?

 

[Dark Knight]

So, EA which is the motor EMF is also refered to as the armature voltage?

:thumbs: