Correction to my Regulator Posts

The Voltage Regulator relay and the Current Regulator Relay are Normally "Closed" (static). The Relay contacts provide a shorting path "across" their respective resistors. This results in the MAX Field Current (static) & smooth Switching.

The Cut-out is normally "OPEN".

IDENT: Current reg is wound with large wire (series) Voltage Reg is wound with small wire. (shunt) Cut-out is wound with both small (shunt) and
large (series) wire.

Hope This Helps,

Soundguy

Bob, The Field Resistors (2) "ARE" the regulators. they are daisy chained to ground (A Type), the Opening and Closing (viberating), of the Current or Voltage relay's, control the field Current.(Resistance in Gen field or No Resistance)

The Cut-out relay closes "long" before they begin
controlling the Field Current. Its the Series winding on the Cut-out that latches/holds the Cut-Out Relay.

When a Battery is discharged its Resistance is Low and current flows easy .

The Current Regulator (series) is the first relay to begin to Open and Close (viberate).This limits the charging current to 20 amps. The Battery Voltage increases (charging).
Why:
Ohms Law: I X R = V.. If I is held constant an increase in Resistance (as battery charges) MUST result in a increase of Voltage.

The Voltage Regulator (Shunt) begins its regulating operation (opening & closing) when the Voltage across the Battery reaches 7.5 volts. The Current rate is then reduced
Why:
Ohms Law: V/R = I.. If Voltage is held constant an increase in resistance (as Battery charges) MUST result in a decrease in Current.

Thats the way I see it,

Soundguy