Which Poles Do I Connect for Short Circuiting in a Wound Rotor Motor?

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SUMMARY

The discussion centers on connecting the poles of a VEB MEZ VSTEIN wound rotor motor for short circuiting in order to run it via a frequency inverter. The motor features six poles labeled a, b, c, a0, b0, and c0, which complicates the short circuiting process. The user seeks guidance on which poles to connect for effective operation. Previous experience with a standard asynchronous motor with three poles is mentioned, highlighting the user's familiarity with similar tasks.

PREREQUISITES
  • Understanding of wound rotor motor configurations
  • Familiarity with frequency inverters and their application
  • Knowledge of electrical connections and short circuiting techniques
  • Experience with asynchronous motor operation
NEXT STEPS
  • Research the specific wiring configurations for VEB MEZ VSTEIN wound rotor motors
  • Learn about frequency inverter settings for wound rotor motors
  • Investigate short circuiting methods for motors with multiple poles
  • Explore troubleshooting techniques for asynchronous motors in industrial applications
USEFUL FOR

Electrical engineers, motor control specialists, and technicians working with industrial motors and frequency inverters will benefit from this discussion.

pafkatata
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Hello,
I have problem with an old asynchronous motor with wound rotor it is VEB MEZ VSTEIN.I am intending to run the motor via frequency inverter by connecting it to the stator windings. I need to short circuit the rotor, but there are 6 poles coming out (a,b,c and a0,b0,c0) from the wound rotor collector and I don’t know which one to connect to which. Can you help me with advice?
Thank you
 
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It is quite huge motor it is in a testing facility. I t is rotating a big fan in a tunnel and its purpose is to simulate a wind with a particular speed.But the guys want to get rid of this old scheme connection and want to control it via frequency converter. Actually i did this but with a normal asynchronous motor with wound rotor with only 3 poles on the rotor which i had to get short circuit them to each other, but this monster has 6 poles as you can see on the scheme (maybe 3 for the beginning and 3 for the end of the rotor winds).
 

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