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Feb 1, 2008 12:00 PM

Double-conversion UPS

The Digital Energy LP-33U Series double-conversion UPS with true online voltage and frequency-independent operation provides 97% system efficiency, according to the company. Available in 10kVA to 60kVA ratings, the UPS incorporates Redundant Parallel Technology, enabling up to four units to be paralleled. Additional product features include a high input factor of greater than 0.98 and less than 10% low input distortion; a PWM IGBT; and remote monitoring and management with connections via LAN, modem, SNMP, RS232, Modbus RTU, programmable alarm contacts, and TCP/IP.
GE Consumer & Industrial
Circle 150
freeproductinfo.net/ecm

3-phase UPS

The FirstLine 924 3-phase UPS central emergency lighting system is designed for 8kW to 16kW applications. In addition to providing a continuous 90-min minimum power supply, the UPS protects the connected load from sags, swells, harmonics, noise, and voltage imbalances in the primary AC supply. Input voltage rating is 208VAC or 480VAC with ±20% range for an input range of 166VAC to 250VAC and 384VAC to 576VAC, respectively, at 60Hz. Output voltage is regulated to ±1% of nominal at full load, and THD is less than or equal to 5% for nonlinear loads and less than or equal to 3% for linear loads. A front panel display includes 2 × 24 character display that shows system status and alarms.
Staco Energy Products
Circle 151

Active harmonic filter

The Square D AccuSine PCS active harmonic filter (AHF) now includes a Telemecanique Magelis XBT-G 3.8-in. graphical touchscreen terminal that supports high-end HMI applications and multiple languages and font sizes. In addition, the touchscreen integrates Ethernet; can be connected on Uni-Telway/Modbus, Modbus TCP/IP; and includes an alarm function with fault logging. Available with 50A, 100A, and 300A ratings, the AHF can be configured into different capacities and carries UL, CSA, CE, and ABS certifications.
Schneider Electric
Circle 152

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