skippyaust
Electrical
- May 28, 2003
- 2
Am replacing 2 x 5MW 11kV motors which are 10 years old but because they operate in desert conditions (very low humidity) exhibit very high brush wear and the carbon dust degrades the insulation of stators and rotors. They have been costly and unreliable to maintain and recently a rotor failed. Am looking for feedback on experience with BRUSH LIFTING GEAR and the pros and cons of STAR OR DELTA CONNECTED ROTORS FOR THE REPLACEMENT MOTORS