50 CYCLE GENERATOR

Here you see a large alternator providing 50 Cycle AC Power and is driven by a 60 Cycle motor.
Called a Motor Generator used to test equipment I occasionally design for England, Europe and Australia.

Step 1: MOTOR

The motor is an old ₇₄₂₀ Frame 115VAC 9.6 Amperes  1725 RPM  1/2 Shaft Horsepower  60 Cycle  Continuous Duty  machine.

Comments

[Foxtrot70]

AH! Excellent you constructed a power converter set. My experience with a converter set was about 30 years ago in the US Air Force when I was stationed in Germany. Our radios were set to run on 60 Hz and the German power grid is 50 Hz. The driving motor was a 600 hp 50 Hz motor direct coupled to a 60 Hz Alternator it ran very well.

[iceng]

600 HP Wow,  makes sense for the Air Force.

As frequency goes up magnetic weight goes proportionally down.
WWII bombers and many military transports use 400 Hx (cycle).

Most of the younger crowd probably have never seen an MG cycle converter.  Thanks for sharing.

A

[Foxtrot70]

Your Welcome.

The reason for the large converter set was that at that time there were 40 single channel transmitters at my base being powered. They were of the WWll tube type and the chassis were the size of footlockers. The radios were later upgraded to transistor types, then the power requirement was reduced, DRASTICALLY. The converter set was no longer needed as the power supplies of the new radios could be selected to run on 50, 60, or 400Hz, AC voltages from 90 - 265 vac. and also almost any DC configuration.

[iceng]

Electronic power supplies have com into their own since or about the time Apple got involved.
As you point out 50 through 400 Hz and 90 to 240+ VAC and sometimes DC if the device has input to that stage of the UpDownVerter.
Impressive techno world.

A

[Tkdwn]

Nice!

[iceng]

Thanks :-D