Page 219 - Electrical Equipment Handbook _ Troubleshooting and Maintenance

VARIABLE-SPEED DRIVES

10.18 CHAPTER TEN

Motor conduit box

Ground bus

Motor frame
Full 360° contact
ground
Mill
ground
FIGURE 10.18 Details of the motor conduit box to cable interface.

Stator

C sf

C rf
C rs C rf
C rs
C sf
C rs

C rs C rf

C rs C sf
C rs

C rf

FIGURE 10.19 Motor capacitances from stator to rotor.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.