Page 231 - Uninterruptible Power Supplies

Kinetic Energy as an Alternative Power Source
Kinetic Energy as an Alternative Power Source 229

than for a battery complete with a full battery monitoring system. The
advantage of reduced space is, however, attractive. As regards reliabil-
ity, exhaustive testing has been carried out on the designs and at least
200 sets were in operation at time of going to print.

Acknowledgment
Technical support for writing this chapter was provided by Active Power
Inc., Austin, Texas, and Anton Piller, Osterode, Germany.

Solenoid actuator
Top bearing
Top catch-bearing
Rotating rectifier
Main machine exciter

Main machine

Flywheel

Bottom catch-bearing
Bottom bearing

Figure 8.8

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.