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Galaxy 5000 technical specifications Contents 1. Presentation ............................................................................................................... 2 1.1 Galaxy 5000 range.......................................................................................................... 2 1.2 The answer to the most demanding situations............................................................. 3 2. Technical specifications .................................................................
Galaxy 5000 technical specifications 1. Presentation 1.1 Galaxy 5000 range Optimised power protection offering high availability and upgradeability for data centres, telecommunications and industrial processes Galaxy 5000 7 power ratings: 20 - 30 - 40 - 60 - 80 - 100 - 120 kVA Three-phase input and output Parallel connection of up to six UPS units, i.e.
Galaxy 5000 technical specifications networks and the web make for proactive maintenance that enhances the availability of the installation.
Galaxy 5000 technical specifications Optimised protection for applications such as data centres, telecommunications and industrial processes Galaxy 5000 meets the needs of the most sensitive applications in terms of high energy availability, installation flexibility and control over operating costs through a set of specific advantages: Data centres - high energy quality and availability are combined with a wide range of power-upgrade possibilities from a few dozen to several hundred kVA, easily, in comple
Galaxy 5000 technical specifications Flexibility Galaxy 5000 can meet the upgrade needs of sites, in terms of both power increases and different types of applications, without interrupting operation. Changes in available power - the initial power rating can be multiplied by four through parallel connection, in step with the needs of the application. Tailored batteries (sealed or vented lead acid, Ni-Cad) and backup times from 5 minutes to 4 hours, fast recharging.
Galaxy 5000 technical specifications 2. Technical specifications 2.1 Operating principle Purpose These technical specifications present the Galaxy 5000 three-phase uninterruptible power system (UPS), implementing sixpack IGBT modules and installed in series between the distribution system and a set of critical loads.
Galaxy 5000 technical specifications Utility power (disturbances) Normal AC input Bypass AC input UPS Rectifier /charger Battery Maintenance bypass Static bypass Inverter Operating principle The UPS draws power from the normal AC input (disturbances are possible). It completely regenerates the power in the double-conversion process (rectifier/charger and inverter) to supply the critical loads with high-quality energy that is continuously available.
Galaxy 5000 technical specifications Input rectifier Sixpack Sixpack component D AC Input T U1 i1 U2 i2 U3 i3 Vout THDI < 3 % PF > 0.998 Fig. 4 a-b. Three-phase rectifier with sixpack IGBT modules, drawing sinusoidal current. Characteristics High input performance THDI < 3% (total distortion of the input current) PF > 0.
Galaxy 5000 technical specifications Characteristics The Galaxy 5000 charger can handle backup times from 5 minutes to 4 hours, thus making for easy selection and adaptation of backup times. The charger is sized for high battery ratings and short charge times to improve availability. For example, 10 minutes of backup time in less than 11 hours and 4 hours in less than 24 hours (complete discharge to Pn/2 and recovery of 90% of battery capacity).
Galaxy 5000 technical specifications the section on battery protection). For batteries on racks, it is necessary to take into account the voltage drop in cables (approximately 5 V). In the personalisation parameters, it is possible to disable this protection function and authorise inverter operation until destruction of the battery (contractual option). This is often the case for fire protection where continuity of service is the overriding priority.
Galaxy 5000 technical specifications (excessive discharge) when the percent load is low. This is because when loads are low, the backup time can be very long and result in battery damage without the protection system stepping in. Voltage Backup time Current Percent load Temperature Digibat Calculation Software Battery shutdown warning Service life Battery parameters Fig. 7. Digibat.
Galaxy 5000 technical specifications inverter uses sixpack IGBT modules (capacitive half bridge, not isolated). It operates at a variable frequency of approximately 5 kHz.
Galaxy 5000 technical specifications Free-frequency chopping The regulation system for the output voltage uses the free-frequency PWM (pulse width modulation) technique shown in figure 9. The chopping frequency, used to remain within the tolerances of the reference sinusoidal wave, is higher in zones with significant variations where the regulation must react more quickly. It also takes into account the load behaviour. Individual regulation of each phase that controls IGBT on and off times.
Galaxy 5000 technical specifications Imbalanced conditions For a 100% load imbalance, shift remains less than 2% of the phase-to-neutral voltage in amplitude. High efficiency even at low percent loads Up to 94% in double-conversion mode Due to the innovative technology implemented in Galaxy 5000 (sixpack IGBT modules, no transformer, hightech output filter), efficiency is high, particularly at typical percent loads.
Galaxy 5000 technical specifications Direct thermal monitoring of the sixpack IGBT modules A sensor placed directly on the base of the rectifier and inverter sixpack modules monitors the cooling system. This allows an early detection of a malfunction that, so far, could have been destructive. (i.e. : body on the heatsink). Then, the UPS transfers without a break to the bypass AC input and sends an alarm to the user. Avoiding the component to be damaged greatly improves the availability of the UPS.
Galaxy 5000 technical specifications Bypass AC source tolerances and transfer conditions When the bypass AC source is within tolerances, no-break load transfers are possible by switching from the inverter to the bypass AC input (decoupling) and back (coupling) via the static switch. Bypass AC source tolerances are defined by the following conditions: Voltage: Un -8% to Un +10% before coupling Un -20% to Un +15% after coupling. Frequency, user set to one of the following values: ± 0.
Galaxy 5000 technical specifications kVA bypass is housed in an enclosure and the 360 and 600 kVA versions are housed in a cubicle (see section 3.4). 2.8 UMI (User-machine interface) Galaxy 5000 has an intuitive user-machine interface based on graphics and pictograms to enhance safety and comfort. Black and white graphic display, wide (quarter VGA, 120 x 93 mm) and high resolution (320 x 240 pixels), easy to read under all lighting conditions. It displays measurements and status conditions.
Galaxy 5000 technical specifications Low-battery warning. General alarm. Battery fault. 2.9 Communication and software Communication Galaxy 5000 offers the entire MGE UPS SYSTEMS range of communication systems designed to meet three essential needs: Inform on UPS operation and its environment, warn the user wherever he/she may by concerning any potential and existing problems Protect server data by automatic, clean shutdown of operating systems Actively supervise an entire set of UPSs.
Galaxy 5000 technical specifications 3. Parallel connection The modular design of Galaxy 5000 enables parallel connection of units with identical ratings in order to increase the available power or provide redundancy. 3.1 Redundancy with two UPS units Active redundancy through parallel connection of two UPS units In this case, parallel connection is intended to increase the availability of energy. Two identical UPS units, each with its built-in manual bypass, supply the load in parallel.
Galaxy 5000 technical specifications Réseau AC by-pass COFFRET BYPASS EXTERN E Normal AC input Bypass AC input Réseau AC normal ASI1 P1(kVA) Réseau AC normal Réseau AC normal ASI2 ASI3 P1(kVA) P1(kVA) Load Utilisation Fig. 17. Manual bypass for a singleUPS unit. Fig. 18. Bypass for a parallel UPS system (higher power rating) with a common bypass AC source. 3.
Galaxy 5000 technical specifications 4. Functions Main standard functions Double-conversion topology (VFI as per standard EN50091) with built-in static switch and manual bypass. Detection of phase sequence. PFC rectifier with sixpack IGBT modules to eliminate harmonic injection upstream. Rectifier/charger walk-in and current limiting to ensure compatibility with gensets. Backup times up to four hours. Battery charger adapts to ambient temperature. Start on battery power (cold start).
Galaxy 5000 technical specifications UPS cabinet without battery (in separate cabinet) - width 710 mm H x W x D: 1900 x 710 x 850 mm Same dimensions for the entire range from 20 to 120 kVA. Battery cabinets - two widths, 710 and 1000 mm For 20 - 30 - 40 - 60 kVA: H x L x P: 1900 x 710 x 850 mm For 80 - 100 - 120 kVA: H x L x P: 1900 x 1000 x 850 mm. Dimensions and weight: See details in table on page 25.
Galaxy 5000 technical specifications > 250 mm > 1000 mm 710 mm Fig. 22. Installation with separate battery cabinets. Fig. 21. No major constraints on installation. Electrical characteristics Power rating Pn (kVA at PF = 0.
Galaxy 5000 technical specifications Battery Type Service life Backup time Built-in battery (max. avail. backup time) Recharge time (hours) 5 minutes for different backup 10 minutes times (complete 15 minutes discharge at Pn/2 and 30 minutes recharge to 90%) Sealed lead-acid or optional vented lead-acid or nickel-cadmium Up to 10 years or more 5 - 10 - 15 - 30 min. (standard) or 1 - 2 - 4 - 8 hours (optional) 5 min. for 80 kVA, 10 min. for 60 kVA, 15 min. for 40 kVA and 30 min.
Galaxy 5000 technical specifications Communication Power rating Pn (kVA at PF = 0.
Galaxy 5000 technical specifications Physical characteristics - environment and standards Power rating Pn (kVA at PF = 0.
Galaxy 5000 technical specifications Current and protection characteristics Power rating Pn (kVA at PF = 0.8) (rated output apparent power) Active power (kW) Input currents 20 30 40 60 80 100 120 16 24 32 48 64 80 96 Currents and measurement conditions I1: current at normal AC input N.B. Currents are measured at: - full rated load, PF = 0.8 - rated voltage of normal AC source is 400 V - battery float charging.
MGE UPS SYSTEMS 140 avenue Jean-Kuntzmann Zirst Montbonnot Saint-Martin 38334 SAINT-ISMIER Cedex France Tel: +33 (0) 4 76 18 30 00 www.mgeups.com SPTC5 500 UK As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication. Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies. Publication: MGE UPS SYSTEMS – 08/2005 Design and writing: P.
