Electric motor control in submarines

juk321 · 04-26-17, 02:22 AM

I have a very technical question for all real (or armchair) Machinist and/or Electrician Mates over here. The question is: How electric motor power output was adjusted on a WW2 diesel -electric submarine?

Because in electric locomotives, for example, the motor RPM is controlled by means of connecting and disconecting resistors from the motor's circuit
I first thought it is the same on a submarine, but then i realized that those resistors on a locomotive are cooled either by airflow at speed or powerful fans and i seen neither of those on any submarine. So how was it done ?

04-26-17, 02:22 AM	#1
juk321 Swabbie Join Date: Nov 2015 Posts: 6 Downloads: 14 Uploads: 0	Electric motor control in submarines I have a very technical question for all real (or armchair) Machinist and/or Electrician Mates over here. The question is: How electric motor power output was adjusted on a WW2 diesel -electric submarine? Because in electric locomotives, for example, the motor RPM is controlled by means of connecting and disconecting resistors from the motor's circuit I first thought it is the same on a submarine, but then i realized that those resistors on a locomotive are cooled either by airflow at speed or powerful fans and i seen neither of those on any submarine. So how was it done ?