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GE Digital Energy’s SG Series is one of the best performing and most reliable three-phase UPS systems providing critical power protection for a wide range of applications. The SG Series 60-600kVA is an Online Double Conversion UPS with clean input IGBT rectifier with (Pure Pulse Technology) that provides best in class input performances. The SG Series 600kVA UPS with built-in filters provide clean input performances. The SG Series system operates in VFI mode (Voltage Frequency Independent) yielding the maximum levels of power reliability for all mission-critical processes. The Digital Energy SG Series was developed using GE's Design for Six Sigma methodology to ensure that the SG Series measures up to customer requirements and expectations. With proven technology the SG Series UPS provides top class reliability and performance. With backfeed protection and compliance to EMC standards. Reliability can be further increased by paralleling up to (6) six UPS units utilizing GE's unique RPA technology (Redundant Parallel Architecture). With RPA every UPS is controlled in a true peer-to-peer configuration with redundancy in all critical elements and functions, minimizes single points of failure. The decentralized bypass offers great flexibility to upgrade the system in case future facility needs change.. Through their complete life cycle, all GE UPS systems are fully supported by service teams which provide world-class, 24x7 preventive and corrective services, training and application expertise.
PurePulse- IGBT rectifier clean input performance GE’s SG Series UPS in the range from 60-500 kVA is available either with traditional thyristor rectifier technology, or with a rectifier based on GE’s cutting edge PurePulse technology. PurePulse is an innovative control algorithm applied on the IGBT rectifier. This current source rectifier assures an Input Total Harmonic Distortion (THDi) of less than 2%, and draws a pure sinusoidal waveform from the mains. The advantages of GE’s PurePulse technology span from savings in the sizing of up-front equipment (such as generator sets, cabling and circuit breakers) to a total elimination of costs for additional active or passive input filters. PurePulse is a breakthrough innovation from GE.   
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