SG Series UPS 10-150 kVA

GE Critical Power offers the SG Series UPS, a line of high-efficiency three-phase uninterruptible power systems designed for data centers and mission-critical applications. These systems provide robust power protection with advanced features to ensure reliability and operational cost savings.

Delivering Reliable Power in a Flexible Design

The GE SG Series stands out as a highly efficient and dependable three-phase UPS system, delivering superior output performance and critical power protection for data center requirements. These UPS solutions are engineered for optimal high efficiency, even under partial load conditions. The SG Series ensures low input current harmonic distortion and provides best-in-class output voltage regulation and dynamic response, contributing to reduced operational expenses and the implementation of environmentally conscious solutions.

Best in Class Transformer-Based UPS

• Offers excellent operating efficiency with guaranteed performance metrics.
• Features Smart Input Filters that enhance compatibility with generators.
• Incorporates innovative technologies designed to improve efficiency, reliability, and extend battery lifespan.

Easier Installation & Configuration Flexibility

• Provides options for top or bottom cable access.
• Includes matching battery and maintenance bypass cabinets for straightforward configuration.
• Features a front-access design to minimize repair time (MTTR).
• Offers seismic certifications for enhanced structural integrity.

Scalable Solution

• Utilizes Redundant Parallel Architecture (RPA) to ensure reliability, redundancy, and scalability.
• Allows for parallel connection of up to 6 UPS modules.
• Boasts extensive experience with RPA technology, which enhances system reliability by eliminating single points of failure.

Key Features

• Up to 65 kA withstand fault rating.
• Smart Input Filtering for optimal generator set compatibility.
• ZigZag Output Isolation Transformer.
• Top or bottom cable entry options.
• Continuous duty static bypass assembly.
• Front access design to minimize footprint.
• Flexible input/output cable length.

Innovative Product Technology

Space Vector Modulation (SVM)

Space Vector Modulation (SVM) represents the next generation of Pulse Width Modulation (PWM) inverter control. This advanced technique utilizes sophisticated switching methods for driving Insulated Gate Bipolar Transistors (IGBTs).

Advantages

• Higher Efficiency: Reduces switching losses and improves efficiency at partial loads.
• Improved Output Performance: Lowers Total Harmonic Distortion (THD) with non-linear loads and enhances transient response to step loads.
• Precise Paralleled System Performance: Ensures more accurate load sharing among multiple units operating in parallel.

Superior Battery Management (SBM)

Every GE UPS includes Superior Battery Management (SBM) as a standard feature. This system can be configured to conduct periodic tests of the battery system and calculate the true battery runtime based on measured temperature and load values.

Advantages

• Compatible With All Battery Types: Supports flooded, VRLA, NiCad, and Sodium (GE Durathon) batteries.
• Online Battery Test: Prevents load loss through periodic rectifier/battery testing to ensure proper operation.
• Increases Battery Life: Monitors all critical parameters of the battery plant to maximize reliability and provide early warnings of potential issues.

Digital Signal Processor (DSP)

The performance of a Digital Signal Processor (DSP) enables the high sampling rates necessary for precise current and voltage controls, crucial for an efficient double-conversion UPS.

• High-speed sampling rate for accurate RPA control.
• Faster transient response times.
• Redundant high-speed communication capabilities.
• All digital controls enhance reliability and stability.
• All system control parameters are adjustable from the front panel.

ZigZag Output Transformer

The ZigZag transformer allows the UPS to operate effectively with heavily unbalanced loads while delivering full kVA output capacity even with 100% non-linear loads. The secondary windings of the output transformer are configured in a ZigZag pattern to cancel third-order (triplen) load harmonics. This configuration reduces neutral conductor loading and minimizes losses in all conductors and the input transformer.

• Provides galvanic isolation for the load.
• Protects the inverter from non-linear loads.
• Protects the inverter from high inrush loads.

SBM – UPS Battery Management & Test

SBM is a comprehensive and programmable management and monitoring system designed to preserve the lifespan of the UPS battery string by preventing overcharging and deep discharging.

• Calculates actual battery autonomy and remaining backup time during utility outages.
• Measures the voltage per cell of the battery system, adjusting for temperature and load.
• The SBM is programmed with specific battery information during UPS startup.
• User-selectable programmable features allow for the choice of battery test frequency and type, ranging from weekly to annual tests, and from deep cycle to 3-minute discharges.
• All test results are logged in the UPS events menu, and any failures are reported on the UPS front alarm panel.
• All tests are performed automatically while the UPS is online.
• Manual tests can be initiated at any time.
• Remote programming and configuration are accessible through the SG Series UPS protection software.

High Performance

Input Performance

Robust Rectifier for Wide Input Range

The broad AC input voltage and frequency window prevents unnecessary battery discharge, even when operating from an unstable AC source, such as a diesel generator.

Programmable Soft Start

This feature enables the rectifier to ramp up over a programmable period (0-30 seconds), eliminating in-rush current. This capability reduces the need to oversize the input power system, including gensets, feeder cables, and overcurrent devices.

Smart Input Filters, <7 % THDi

An optional internal input filter is available for the SG Series UPS. This “smart” filter includes a programmable feature that allows it to be deactivated during startup and low load conditions, thereby preventing a leading power factor (PF).

Generator Compatibility

User-programmable features such as slew rate, phase angle rate-of-change, and voltage rate-of-change enable the UPS to quickly synchronize with a genset during emergency backup. GE’s optional input filter also includes user-programmable features to ensure rapid and continuous synchronization with generator voltage.

Output Performance

Total Harmonic Distortion (THD)

A distorted output voltage waveform can impact the proper functioning of load equipment. The SG Series delivers very low output voltage THD, even when connected to 100% unbalanced or 100% non-linear loads.

Transient Response

Leveraging SVM and the ZigZag transformer, the GE UPS can respond rapidly to zero-to-100% step loads within 1/3 of a cycle. This capability reduces the necessity for oversizing the UPS for demanding pulse-load applications.

Overload Capabilities

The SG Series UPS features a robust inverter capable of handling 150% overload for 60 seconds.

Phase Load Imbalance

The UPS Output ZigZag transformer, due to its inherent characteristics and winding configuration, provides excellent voltage regulation against phase-to-neutral (Ph-N) load imbalances.

Redundant Parallel Architecture (RPA) System Configuration

GE offers RPA, a unique technology that enables UPS modules to operate in parallel with true redundancy by eliminating any single point of failure. RPA provides a scalable paralleling technique that reduces the operational footprint and enhances system reliability by removing the need for external paralleling equipment and cabinets, such as centralized bypass and master control units. One of the UPS modules in the system assumes a leadership role, while the other UPS modules have access to all control parameters. If a UPS module fails, the load is automatically redistributed among the remaining units. If the lead UPS fails, another module automatically assumes the leadership role. GE’s RPA technology is implemented through the distribution of control electronics within each UPS module in the system.

RPA System Advantages

• No Single Points of Failure: The RPA system offers complete redundancy for all critical components and allows for the parallel connection of up to 6 units to increase load capacity or redundancy.
• Scalable and Modular: The system can be easily expanded for higher capacity and redundancy without interrupting the critical load or requiring a transfer to bypass.
• Redundant Communication: Redundant high-speed bus and control electronics ensure higher system reliability.
• Distributed Control Logic: Each module in an RPA system possesses its own operational controller. These controllers continuously communicate with each other to manage the entire system collaboratively.

Online Maintenance

N+1 configurations permit maintenance on any single module within the system while other modules continue to provide online protection with battery backup.

Sequential Soft Start

This feature ensures a sequential soft start for each module, reducing the instantaneous load on input feeders during mains recovery. This helps prevent generator over-rating and overheating of cables and fuses.

Smaller Footprint

RPA eliminates the need for centralized control and external static bypass cabinets.

GE’s RPA System

Standard RPA Configuration: True Redundancy with Distributed Control & Bypass

Over 8,000 RPA UPS Systems installed globally!

Inside Each UPS Module is:

• RPA Control/ Communications
• 100% Rated Static Switch

Redundant Parallel Architecture (RPA) System Options

Intelligent Energy Management Integrated (IEMi)

IEMi is a software package designed to help RPA systems conserve energy and reduce operating costs during low load conditions. Inverters that are not required to support the load can be automatically switched off to achieve energy savings. The IEMi mode can be configured for various operating scenarios, allowing the customer to define the desired level of redundancy.

Intelligent Sync Module (ISM)

For System + System (2N) applications, the ISM module is used to synchronize the outputs of two modules or two groups of UPS units fed from separate and independent sources. This synchronization facilitates downstream switching. The ISM is an intelligent control unit installed externally to the UPS module. It can designate a master system and exchange permissive signals with downstream devices. Consistent with RPA’s design philosophy, the ISM incorporates redundancy in all critical components. The ISM communicates via redundant cables and offers options for redundant power supplies and control circuitry.

Software & Connectivity Solutions

Protection Software

GE’s data protection software can interface with the UPS via RS-232, USB, or SNMP to obtain status information and measurement values. In critical situations, such as extended battery operation, remaining battery autonomy time, or low battery levels, the software initiates a controlled shutdown. An advanced alarm management system allows for the initiation of applications, sending of messages, and dispatching of emails for every alarm, whether it is occurring or resolving.

Remote Monitoring & Diagnostic Solution

GE’s remote monitoring solution provides continuous, anywhere access to UPS status monitoring and alarm notification, supporting all GE UPS product lines. Accessing up-to-date site information via the web and receiving alerts through email or SMS enables users to make timely decisions in response to changing critical conditions. Comprehensive data collection and analysis capabilities enhance diagnostic accuracy and improve response times.

• 24/7 remote access to UPS data using a standard web browser.
• Automatic alerts for events sent directly to your mobile phone or email.
• Regular operational reports providing proactive information on critical data.
• Preventative information delivered through the PMAD (Preventative Maintenance & Advanced Diagnostics) feature.
• Potential to reduce on-site interventions and work.

Remote Connectivity to Building Management Systems

This optional Standard Network Management Protocol (SNMP) Plug-In Card enables the UPS to communicate over a LAN or interface with major building management systems (BMS). It integrates a modern web server for UPS monitoring via LAN, facilitates remote server shutdown in the event of critical UPS alarms, and functions as a Modbus TCP Converter and Modbus RTU 485 converter.

Options & Accessories

UPS Rectifier

The 6-Pulse Rectifier is the standard configuration for the SG Series 10-150 kVA UPS Modules.

Input Harmonic Filters

The 5th harmonic input filter is utilized to reduce the 5th harmonic generated by the 6-pulse Rectifier. This filter lowers the input harmonic distortion to below 7% THD and improves the output power factor to 0.93.

FCC EMI Filters

GE offers an internal FCC EMI filter as an economical option for installations requiring FCC Class A certification (for 150 kVA and below).

Module Fault Withstand Rating

SG Series UPS modules are designed with Fault Withstand ratings up to a maximum of 65 kA.

Remote Alarm Status Panels

GE provides both single and multi-module versions of a Remote Alarm Status Panel for remote summary status of key UPS parameters.

4×2 Combo Cabinets

GE offers integrated cabinets that include 3CB maintenance bypass capability at 480V, with a downstream step-down transformer to 208/120V. Feature options include SKRU kirk key interlocks and 208V output subfeed circuit breakers or panelboards.

Battery Cabinets

GE provides line-and-match VRLA Battery cabinet systems with integrated overcurrent protection, available in various backup time configurations. Optional battery monitoring or seismic certifications are available for these cabinets.

Maintenance Bypass Cabinets

GE offers line-and-match Maintenance Bypass cabinets or switchgear-design non-matching cabinets. Feature options include SKRU kirk key interlocks and integration with RPA Output Panels for paralleled UPS Systems.

Seismic Certification

GE has obtained certification for numerous UPS Modules to meet the requirements of the healthcare vertical market and its OSHPD standards, making them suitable for seismic applications throughout North America.

Surge Protection Devices

GE offers a comprehensive range of wall-mount Surge Protection devices, with ratings up to 300 kA, designed to provide enhanced surge protection for switchgear, panelboards, and UPS systems. Transient voltage surges, originating from both external and internal sources, directly impact the performance and lifespan of electronic equipment. From electronic lighting ballasts to computer servers, any device containing a printed circuit board is vulnerable to transient voltage surge damage. As microprocessors and components become smaller and faster with each generation, their susceptibility to transient voltage surge damage increases significantly. Available in ratings from 65 kA to 300 kA per mode (130 kA to 600 kA per phase), the TR7000 series is an ideal surge suppression product for safeguarding critical, sensitive electronic equipment throughout a facility. Recommended installation locations include service entrance switchboards, panelboards, and UPS systems.

Factory Testing & Customer Witness Testing

Factory testing may encompass, but is not limited to, the following:

• Functional testing of the full parallel RPA system, including transfers to bypass, utility failure simulations, and EPO (Emergency Power Off) functionality.
• Comprehensive functional testing of the parallel RPA system, including simulations of master failure and communication failures.
• Steady-state measurements from 0-100% load, including voltage, current, output voltage regulation, input/output power factor, output voltage THD, input current THD, and frequency.
• Overload testing of the full system up to 150%.
• 100% utility failure testing with waveform capture.
• 0-100% step load testing with waveform capture.
• 0-100% bypass transfer testing with waveform capture.
• Output short circuit testing with waveform capture.
• Module removal from the system testing with waveform capture.
• Inverter or power supply failure simulations.
• Full functional testing of the RPA output switchgear, including transfers into and out of main bypass mode.

Field Testing & Service Capabilities

On-Site Services that include:

• UPS Module Startup & Test
• Battery Measurement & Monitoring
• Load Bank Testing
• Thermography Testing
• Project Management
• Site Commissioning Assistance
• Repair, Upgrade, Retrofit
• Site Audits & Assessments

Our UPS Backs Up Your Load, Our Service Backs Up Your UPS

GE’s UPS Services extend beyond standard product support, offering on-site services for risk-mitigating installation and startup, as well as availability services to proactively reduce downtime and meet service-level commitments. From installation to product retirement, warranty upgrades to remote monitoring, and proactive care to 24/7 problem resolution, GE’s field service organization is equipped to support all your electrical infrastructure needs.

On-Site & Emergency Services

• 24/7 Emergency Hotline

Spare Parts

• Spare Part Kits
• Product Replacement / Return
• Equipment Rentals
• Battery & Capacitor Replacements

Contractual Services

• Maintenance Service Contracts
• Remote Monitoring & Diagnostics
• Technical Services

Training

• Training for Operators
• Training for Maintenance Staff
• Product Training
• Web-Based Training

The availability, stability, and adaptability of your electrical infrastructure are vital to your business success. Rely on the support professionals who understand your system best.

Customer Service Support

Toll-Free: +1 877 546 3243
US-Based Customer Service
Answered Live 24/7

Technical Specifications

For more technical information, please refer to the applicable product Technical Datasheet.