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Recent content by OFathaigh
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Wound Rotor Induction Motors -- Efficiency Calc
OK, thank you for the feedback! What it seems to me is that it looks like it works much like the eddy-current drive loss, where you lose the power to the resistor bank directly proportional to the slip, and that percentage slip is "power added" to the driven load to get your total load on the...- OFathaigh
- Post #6
- Forum: Electric motors & generators engineering
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Wound Rotor Induction Motors -- Efficiency Calc
I had found that other post, but that flomatch website doesn't come up with anything. I understand that power is "burned up" in the resistor banks, and that those are connected to the wound rotor. I don't understand how you can tell how much. ie, if a motor is 500hp, and is running at rated...- OFathaigh
- Post #4
- Forum: Electric motors & generators engineering
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Wound Rotor Induction Motors -- Efficiency Calc
Hello, Normally I'm a mechanical engineer by trade, so I'm having trouble putting a number on the efficiency of a wound-rotor induction motor when running at variable speeds. I have a customer that uses resistor banks for speed control operations of pumps in the range of 500-600 hp, in most...- OFathaigh
- Thread
- Replies: 8
- Forum: Electric motors & generators engineering
