High Frequency Generator 5

[BoyNaruto]

Gentlemen,

Do anybody here uses a High Frequency Generator (combination of a driver motor and a generator)? The mains as described in the motor plate is 380V/50Hz 33A, Exciter Field is 380V 15A, and the output rotor voltage is 135V 200Hz, 22KVA. This high freq. generator is used to power our Bosch High Frequency Angle Grinders in our Fabrication shop. The problem is we have 60Hz here in our location and the output freq. is reaching up to 230Hz. This makes our grinders hotter and overheating at prolonged time of use. Do you have any suggestions on how can I control the output frequency down to 200Hz? Thanks guys.

 

[electricuwe]

You will be able to justify buying a VFD (or solid state power supply for the grinders) if you replace the machine set by it.

Efficiency of rotating machinery for generating high frequency is quite poor and you will be able to save a lot of operating cost.

 

[ScottyUK]

On the other hand rotating plant is much more tolerant of overloads and short circuits than the electronic equivalent.


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