Service Manual Of High Frequency Ups
Delivering Best-in-Class Efficiency with eBoost Technology The GE SG Series is one of the most efficient and reliable Three Phase UPS Systems, providing best-in-class output performance and critical power protection for your data center needs. The SG Series UPS solutions are designed and optimized to provide high efficiency at part load conditions. The SG Series UPS assures low input current harmonic distortion and best-in-class output voltage regulation and dynamic response. This helps customers save operational costs while implementing environmentally-friendly solutions. High Efficiency Energy Efficiency is Our Focus The GE SG Series is one of the most energy efficient double-conversion UPS with output transformer topology in the industry, and provides world-class energy efficiency across the operating load range. GE's UPS performance is optimized at 50-75% load operation, as this is the most common operating range.
The optimization of the SG Series includes selecting all major power chain components based on maximizing the component efficiency at part load conditions. See the Technical Specifications tab for efficiencies of the different SG UPS models. The following table compares GE's UPS efficiency vs other transformer-based double conversion UPS Our UPS efficiency is taken up another notch by operating the system in eBoost™ mode. This efficiency is the highest in the UPS industry, yet its multi-mode function still allows the UPS to act as a double conversion UPS as needed under electric anomaly scenarios. Ultra-High Efficiency Mode What is eBoost.? E = high efficiency up to 99% Boost = fast transfer to inverter. Input Performance Robust Rectifier for Wide Input Range The wide AC input voltage and frequency window avoids unnecessary battery discharge even when operating from an unstable AC source (i.e.
Diesel generator). Programmable Soft Start Allows the rectifier to ramp up in a programmable time period (0-30 seconds) eliminating in-rush current. This feature reduces the need of oversizing the input power system (gensets, feeder cables, and overcurrent devices). Smart Input Filters, low THDi GE offers an optional internal input filter with the SG Series UPS. The 'smart' filter has a programmable feature that allows the filter to be switched off during start-up and low load conditions, preventing leading power factor (PF).
THDi in the 500-750KVA models is less 5%. THDi in the 50-400 KVA models is less than 7%. Generator Compatibility User-programmable features such as slew rate, phase angle rate-of-change and voltage rate-of-change allow the UPS to quickly sync to a genset during emergency back-up. GE's optional input filter also has user-programmable features ensuring quick and continuous synchronization to generator voltage. Output Performance Total Harmonic Distortion (THD) A distorted output voltage waveform affects the proper function of the load's equipment. The SG Series has very low output voltage THD, even with connected 100% unbalanced or 100% non-linear loads.
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Transient Response With the use of SVM and the ZigZag transformer, the GE UPS can react very quickly to zero-100% step loads (within 1/3 cycle). This reduces the need to oversize the UPS for severe pulse-load applications. Overload Capabilities The SG Series UPS has a robust inverter capable of delivering 150% overload for 60 seconds. Phase Load Imbalance The UPS Output ZigZag transformer, via its inherent characteristics and windings configuration, provides excellent voltage regulation against phase-to-neutral (Ph-N) load imbalances. Parallel Architecture.
Redundant Parallel Architecture™ (RPA) System Configuration GE provides RPA, a unique technology that can parallel UPS modules with true redundancy by eliminating any single point of failure. RPA provides a scalable paralleling technique that reduces operating footprint and increases system reliability by eliminating the need for external paralleling equipment and cabinets (centralized bypass and master control). One of the UPS modules in the system intelligently takes the leadership role, while the other UPS modules have access to all control parameters. If one UPS fails to operate, the load is automatically redistributed among the others. If the lead UPS fails to operate, then another UPS automatically takes on the leadership role. GE's RPA technology is implemented by distributing the control electronics within each UPS module in the system. RPA System Advantages.
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No Single Points of Failure. Scalable and Modular. Redundant Communication. Distributed Control Logic. Online Maintenance. Sequential Soft Start. Smaller Footprint GE's RPA System Inside each UPS Module is:.
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RPA Control/Communications. 100% Rated Static Switch Over 8,000 RPA UPS Systems installed globally! Intelligent Energy Management Integrated (IEMi) IEMi is a software package which allows RPA systems to save energy and reduce operating costs ($) during low load conditions. Individual inverters, which are not required to support the load, can automatically be switched off to save energy costs ($).
The IEMi mode can be programmed for various operating modes and the customer defines the degree of redundancy required. Intelligent Sync Module (ISM) For System + System (2N) applications, the ISM module is utilized to synchronize the outputs of two modules or two groups of UPS's that are fed from separate and independent sources. This allows the two systems to be synchronized for down-stream switching. The ISM is an intelligent control that is mounted external from the UPS module. It has the ability to select which system is master and can also send/receive permissive signals from downstream devices.
Additionally, the ISM follows the same tradition as RPA with redundancy in all critical components. The ISM communicates via redundant communication cables and has options for redundant power supplies and control circuitry. Technical Specifications SG Series 10-150 kVA high efficiency UPS Systems.
Key features: ►True online double conversion technology ►Wide input voltage range ►Zero transfer time ►Protection against all types of power problems ►No add-on CNTL unit required for parallel connection ►Low initial investment and flexible for future expansion ►Highest reliability and maximum performance for power sharing and redundancy ►Equipped with maintenance bypass switch The best charger is designed to recharge low battery as quickly as possible with out damaging batteries in 2 amp up to 8 amp and 192VDC. Allowing 90% recharge in as little as 10 hours after a total drain. ►True double conversion technology with zero transfer time This advance design provides the closest you can get to pure constant power in the industry. Technical specifications: Model H10KL3/1 H15KL3/1 H20KL3/1 Rated power VA/W 10KVA/8KW 15KVA/12KW 20KVA/16KW Input Nominal voltage 380VAC Voltage range 304478VAC Phase 3 phase(4 wires plus ground) Frequency range 4654Hz Power efficiency 0.95 Connection Hard wired Output Voltage 220VAC±1%, single phase Frequency 50Hz±0.1%(battery mode) Waveform Pure sine wave Power factor 0.8 Voltage distortion 2% under linear load Overload capability 105%130% for 10 min., 130% for 1 min. Current crest ratio 3:1 Max.