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First Page. Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas UPS Uninterruptible Power Supply PM#05 20-21 Jun 2006. Power Requirements. Antenna UPS Power Requirements 15 KVA , 400 VAC, 50 Hz, 10 minutes

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  1. First Page • Design, Manufacture, Transport and Integration on-site in Chile of ALMA Antennas • UPS • Uninterruptible Power Supply • PM#05 20-21 Jun 2006

  2. Power Requirements • Antenna UPS Power Requirements • 15 KVA , 400 VAC, 50 Hz, 10 minutes • UPS Dimensioning due to the critical environmental conditions and altitude requirements. • 30 KVA , 400 VAC, 50 Hz, 10 minutes

  3. Location Details • Location Details UPS Main Unit (U1) UPS Batteries Unit (U2)

  4. U1 Dimensions • UPS Main Unit (U1) Dimensions 800 mm 900 mm 1200 mm

  5. U2 Dimensions • UPS Batteries Unit (U2) Dimensions 968 mm 800 mm 1900 mm

  6. UPS Choise 1 UPS Baseline Proposal World Wide Group Brand

  7. UPS Choise 2 UPS Choice Brand : Liebert Model :NX (30KVA,24KW)

  8. UPS characteristics UPS characteristics • Liebert NX has: • True on line with double conversion: It delivers 100% protection, full separation between Input and Output, Power regeneration. • DSP Control : Digital Signal Processor supply full stability control in the years. • Rectifier with sinusoidal absorption with PFC Vector Control (power factor correction). • THD < 3%. • Power Factor >= 0,99. • Full tolerance to the grid floatation : from 305 to 477 V and from 40 to 70 Hz. • Ripple < 5%.

  9. UPS Batteries1 UPS Batteries - Baseline Proposal NorthStar NSB 40 High cycle life capability +500 C/3 @ 80% DOD 10 Years float life at 25°C. 15 years at 20°C Flame retardant 3 step terminal seal

  10. UPS Batteries2 UPS Batteries NorthStar NSB 40 20 Hour capacity: 41Ah to 1.80 VPC 15 minut power: 194 W/cell to 1.67 VPC Float recharge 2.29 @20°c Cyclic recharge 2.45 VPC @ 25°, no current limit

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