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Sparks between shaft and casing on DC motor
Hi everybody, Thanks for your answers. I just wanted to add some details : Yes, we have a DC motor, probabely not designed for a use with VSD (!) as it's a refurbished one... At the moment, we only use the motor with no-load. The sparking problem appears only at low speed. Over 500rpm, the...- Wildseuil
- Post #6
- Forum: Electric motors & generators engineering
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Sparks between shaft and casing on DC motor
Hi everybody, First of all, sorry if there are some mistakes in my english, I'm french... We've recently bought a DC motor (400V/400kW/3200rpm) as spare part. The original motor was smaller (250kW/3000rpm). This motor is driven with an ABB variable speed drive, which is designed for the bigger...- Wildseuil
- Thread
- Replies: 7
- Forum: Electric motors & generators engineering
