Technology and Operations
This forum is for discussing technological & operational matters pertaining to U-boats.
Re: Valves for electronics on uboots
Posted by:
Rodney
()
Date: December 21, 2002 04:46PM
Adding to the comments:
As batteries are used for the main electrical systems in U-boats, the main generator was a DC generator. Consequently, everything else is going to be a subsystem powered off of the batteries or the central generator. In this case the drive motors doubled as DC generators when the boat was being powered by the diesels.
The voltage output of a direct current system cannot be easily adjusted up and down as needed. However, using a dynamotor solves the voltage control problem. A Dynamotor in this case is a motor/generator set that converts direct current into alternating current. The dynamotors usually have a built in speed control to provide a stable frequency output. The AC can then be distributed using a system of transformers whose voltage outputs match the application needed. I am not familiar with the electrical systems of a U-boat but I think that it would not be uncommon to have several smaller dynamotors located near the required location.
At that time, the dynamotor was the only economical method of converting DC to AC. A vibrator system was noisy (Electrical noise) and not suitable for high power applications.
Dynamotors were sized to the power application. Also, multiple phase AC voltages could easily be generated if needed.
As batteries are used for the main electrical systems in U-boats, the main generator was a DC generator. Consequently, everything else is going to be a subsystem powered off of the batteries or the central generator. In this case the drive motors doubled as DC generators when the boat was being powered by the diesels.
The voltage output of a direct current system cannot be easily adjusted up and down as needed. However, using a dynamotor solves the voltage control problem. A Dynamotor in this case is a motor/generator set that converts direct current into alternating current. The dynamotors usually have a built in speed control to provide a stable frequency output. The AC can then be distributed using a system of transformers whose voltage outputs match the application needed. I am not familiar with the electrical systems of a U-boat but I think that it would not be uncommon to have several smaller dynamotors located near the required location.
At that time, the dynamotor was the only economical method of converting DC to AC. A vibrator system was noisy (Electrical noise) and not suitable for high power applications.
Dynamotors were sized to the power application. Also, multiple phase AC voltages could easily be generated if needed.
