GE Products BuyLog Smart Catalog

Uninterruptible Power Supplies Energy Connections SG Series 225-300 kVA, Three-Phase Flywheel Systems Notes —DC Energy Storage Flywheels are typically used in lieu of Battery Plants, for short term backup time and green solution. If project requires DC Flywheel and Battery backup for same UPS Module, consult factory for application support and pricing. —External DC Cabling from the DC Flywheel to UPS Module is supplied and installed by others. Contractor to provide single, 250Amp 600VDC feeder from the UPS Module to the Battery System, unless noted otherwise. —In multiple DC Flywheel applications, it is not possible to tie all Flywheel cabling to one UPS Module bus landing area. The use of a DC Paralleling Cabinet is recommended. This DC Paralleling Cabinet will allow one feeder from the UPS Module to the Paral- leling Cabinet, and multiple feeders from the DC Paralleling Cab- inet to each Flywheel. All feeder cabling is supplied and installed by others. We recommend quoting the DC Paralleling Cabinet as an OPTION ADDER, as competitors may not quote this cabinet, thinking that the installing contractor will provide. —DC Flywheels are made in Cerritos, CA. DC Paralleling Cabinets are made in Carol Stream, IL. Leadtime ARO for both items is approx 5-7 weeks, and are drop-shipped to the jobsite.

Section 20

Backup Time Chart (in seconds) Enhanced Flywheel SG UPS

UL SG 225

UL SG 300

kW

202

270

No. of Flywheels

↓

↓

1

22

2

54

39

3

81

62

Standard Flywheel SG UPS

UL SG 225

UL SG 300

kW

202

270

No. of Flywheels

↓

↓

1

16

2

35

26

3

53

40

Chart Notes: 1. Run times are rounded off to the nearest second and are based on UPS with 540Vdc float voltage for modules 160kVA and higher. 2. DC-AC Efficiencies (battery to output) are based on battery power data at rated power factor from Technical Data Sheets 3. Runtimes take into account the minimum 2 sec rectifier walk-in time

Rev. 1/19 Data subject to change without notice

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