Ultracapacitor-based backup power module for UPSs

A 56-volt ultracapacitor module addresses the short-term ridethrough and bridge power requirements of uninterruptible power supply (UPS) systems for critical installations. Maxwell Technologies Inc developed the UPS module after consulting with UPS system integrators to mitigate the effects of brief power disturbances on digital systems and sensitive medical and manufacturing equipment, and to provide bridge power to a generator or other long-term backup power source in the event of a complete power outage. A few key features and benefits include:

• Maintenance-free operation and an estimated 14-year life ensure low cost of ownership
• 3U and 4U rack-mount form factors for easy integration into standard equipment racks
• Available in 4, 5, 6.5, and 10-kW versions to easily configure for UPS system requirements
• Series connectable for systems requiring up to 750 Voltage
• Rugged construction meets IBC Zone 4 earthquake resistance standard, and
• No heavy metals or toxic substances requiring special recycling.

Maxwell ultracapacitor cells range in capacitance from 5 to 3,000 farads and multi-cell modules ranging from 16 to 125 volts (pictured).

“Most of power disturbances last a second or less, so ultracapacitors provide an excellent technical solution and their projected 14-year life in a typical UPS installation makes for a compelling value proposition,” says Maxwell Senior VP Van Andrews.

Unlike batteries, which produce and store energy by means of a chemical reaction, Maxwell’s Boostcap ultracapacitors store energy in an electric field. This electrostatic energy storage mechanism lets ultracapacitors charge and discharge in fractions of a second and perform normally over a broad temperature range (-40 to +65C), operate reliably through one million or more charge-discharge cycles and resist shock, vibration, and overcharging.

Maxwell Technologies Inc.
www.maxwell.com