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Resources
7x24 Exchange Northwest Chapter
The leading knowledge exchange for Data Center, IT and Mission Critical professionals in the Pacific Northwest. The Chapter meets three times per year and their website contains useful archives of past meeting presentations.
Power Quality Terms & Definitions
Source Stiffness, Harmonic Pollutions, Flickering Lights, Harmonic Magnitudes, Loose Connections, Sags, Swells, Transients and much more from Dranetz.
Flywheel 101
What makes CLEANSOURCE® PLUS Systems so special?
The concept behind flywheels is quite simple; objects in motion continue in motion unless acted upon by an outside force. Flywheels have been used for more than five thousand years in applications such as textile spindles and potter's wheels, and were adapted to machine use during the industrial revolution. What's this have to do with Uninterruptible Power Supplies?
The answer is Active Power's patented integrated flywheel UPS technology. Flywheel systems store kinetic energy - energy produced by motion - by constantly spinning a compact rotor in a low-friction environment. When short-term backup power is required because utility power fluctuates or is lost, the inertia allows the rotor to continue spinning and the resulting kinetic energy is converted to electricity.
- 4.4" high; 25.5" in diameter; 600 lbs
- Flywheel constantly spins (~ 10,000 rpm) in a vacuum
- Each flywheel provides 300kW for ~20 seconds or 150kW for nearly 1 minute
