TLE Series. Product Description kva / 400Vac / S1 KEY BENEFIT APPLICATIONS FEATURES

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1 TLE Series Product Description kva / 400Vac / S1 KEY BEEFIT High efficiency up to 96.5% in on-line double conversion and 99% in eboost operation mode Unity output power factor; full power for critical load without derating (kva=kw) for actual and future IT devices Saving installation space; compact design and true front access for operation and maintenance Excellent dynamic performance and low output voltage distortion with linear and non-linear loads such as IT equipment Redundant Parallel Architecture (RPA ) for reliability, redundancy & scalability. Parallel up to 6 UPS modules Enhanced communication with external BMS and embedded diagnostic software APPLICATIOS Data centers, Server farms: A data center that can t guarantee its customers continuous access to data, won t be in business for long such as Servers (LA, WA,...), Web providers, Data centers Healthcare: Protects critical equipment from power fluctuations and failures. Protect instruments from potentially harmful uncontrolled shutdowns. Industrial systems: Industrial automation equipments and controls systems rely on UPS systems for uninterruptible power to keep the process running Banking & Financial: Financial institutions use advances power quality systems to ensure that important work on personal accounts and large transactions is not lost due to system interruptions Transportation systems: Provide reliable energy to infrastructure, roads, railways, airways, to guarantee safe transportation of people and goods Critical infrastructure: Ensuring continuous and reliable power supply for critical applications, essential for public and private services FEATURES Installation Compact design small footprint Front access for operation and maintenance Input IGBT rectifier sine-wave input and unity power factor Wide voltage-frequency window Common & separate (rectifier+) input mains Output Unity power factor: full active power available for any loads. o derating required for IT applications High output stifness for output sine-wave with nonlear and pulsating loads g imagination at work Battery Multiple batteries brand/technology supported SBM (Superior Battery Managemen) for complete battery check and autonomy control Communication Easy integration with BMS (Bulding Management System) Interface via relay contact, SMP card, Modbus TCP Remote montitoring Integrated diagnostic Embedded Black box for data acquisition and analysis Enhanced service diagnostic Page 1

2 Introduction TLE Series UPS is one of the best performing three-phase UPS systems providing critical power protection for a wide range of applications. The TLE Series operates in VFI mode (Voltage Frequency Independent) and has been developed to satisfy the growing request of high efficiency through an innovative control algorithm with 3-level inverter technology. This innovative product provides best-in-class efficiency in double conversion mode as well as eboost operating mode. TLE Series represent the state of the art in UPS design by the combination of latest power conversion 3- level IGBT technology and key design elements like reliability, efficiency, installation, serviceability and connectivity. Thanks to RPA (Redundant Parallel Architecture) the system power can be expanded by paralleling units or increased in reliability by adding redundant units. Key features reduced switching and filter losses with respect to a standard two level technology. Combined with optimized magnetics, the net result is an ultimate 96.5% efficiency in double conversion. On top of this, the high level of integration and the optimized power layout result in clean commutations with no overvoltages which in turn translate into reduced component stress and increased reliability. Compact design & front access Front access for operation and maintenance are considered as key features in UPS design. This feature results in a limited installation space installation against a wall allowed and easier and fasted intervention by service engineers during maintenance activities. Modular & Draw Out Construction All the sub-assemblies for the TLE Series are designed and assembled to have slide out modular construction that allows fast maintenance and service. Standard Safety and Maintenance Feature TLE Series UPS has standard built in back-feed contactor as well as maintenance switch that avoids external installation of switches or breakers into input distribution panels for providing back-feed protection and maintenance disconnect. Improved Diagnostic and Reliability with new FLEX DSP Every TLE Series UPS incorporates improved diagnostic capabilities with the new FLEX DSP control board that provides capability of waveform capture, diagnostic and trend analysis. The TLE Series is also equipped with special hardware and monitoring capability for limited life components like fans and capacitors. Improved Diagnostic TLE Series new diagnostic features allows to store different wave forms and also provides fan failure detection as well as warning on capacitor life that improves UPS availability and enhances preventive maintenance capabilities. True On-Line Double Conversion VFI-SS-111 Double conversion guarantees the continuity of the output power supply. VFI technology (Voltage and Frequency Independent) avoids the propagation of any input mains disturbances to the critical loads. Total Cost of Ownership eboost technology Saving energy by supplying loads using automatic and protecting loads by transferring critical energy to inverter in case of trouble on input mains such as voltagedrop, black-out, frequency variation, etc. 3-level IGBT technology TLE Series UPS uses a three level technology with an Advanced eutral Point Clamped topology implemented with true Reverse Blocking IGBT. These result in Page 2

3 Efficiency TLE Series UPS are designed to optimize maximum efficiency for all operation modes, ensuring performance up to 96.5% in double conversion and 99% in eboost mode. These performances allow the optimization of ancillary equipment like air cooling, saving also direct and indirect energy costs. TLE series delivers efficiency up to 96.5% in double conversion (VFI) mode and 99% in eboost operating mode eboost technology Energy consumption is a critical issue for IT organizations as their datacentre energy demands continue to grow. Their goal is to reduce cost and keep the datacentre running. IT organizations can reduce energy consumption costs without sacrificing system reliability with GE s eboost technology. e = high efficiency up to 99% Boost= fast transfer to inverter < 2ms eboost operating mode Genset friendly IGBT rectifier guarantees the absence of current harmonics at UPS input as well as unity power factor (PF=1). This ensures compatibility with emergency generators, and limiting the oversizing to vs. UPS rating, reducing so costs and installation space. Output capability TLE Series is designed to supply all critical loads at full power without restriction or downgrades, the basic concept consists in an output active power equal to apparent power (kva = kw). This feature allows to provide full UPS power to critical loads regardless if they have inductive, unity or capacity power factor. Substantially the UPS is designed as critical power supply for actual and future generation of IT equipment. kva = kw UPS power capability chart Page 3

4 Main UPS components Rectifier The rectifier consists of a controlled 3-level IGBT bridge, which converts the 3-phase mains voltage into a controlled and regulated DC-voltage. This regulated DC-voltage is used to supply power to the inverter and to battery charger. Clean input technology IGBT rectifier bridge performs an input sinusoidal current ensuring a limited THDi (Total Current Harmonic Distortion) below 3% with power factor o additional filters to reduce current harmonics or to increase power factor are required. Soft start As standard feature the rectifier employs software control to limit the start-up current and voltage. The load power is applied to the mains gradually, preventing instable conditions for the upstream protection devices and for emergency GenSets regulation. In case of RPA configuration, the different UPS start sequentially. UPS block diagram Superior Output Voltage Dynamic Stiffness High output dynamic voltage stiffness, performing stable and pure sinusoidal voltage with non-linear and pulsating loads. Pure sine-wave output voltage guarantee the proper supply for equipment with critical power circuits without compromising functionality, performances and lifetime of the components. Rectifier input current waveform Input voltage and frequency windows TLE Series UPS are designed for nominal voltage 3x380/400/415V, 50 or 60 Hz. The wide AC input voltage ( V) and frequency (45 66Hz, 50/60Hz ±10%) accepted by the rectifier, avoids battery operation even with an unstable AC input voltage. The energy stored in the battery is so preserved for real critical mains perturbations. The reduced battery charge/ discharge cycles preserve also battery life. Different voltages are accepted by additional adaptation transformer. Hz +10% 50-10% UPS input current after mains recovery Inverter The 3-level IGBT inverter converts the DC-voltage into a three-phase AC-voltage with constant amplitude and frequency, which is completely independent and isolated from the AC-input voltage. Output voltage and frequency The UPS output voltage is set at 3x380/400/415 V + neutral, 50 or 60 Hz. Different output voltages are possible by additional adaptation transformer. Load non-linear current UPS output voltage with non-linear load -15% % V Page 4

5 Bypass The automatic consists of a static semiconductor-switch (SSM: Static Switch Module), used to provide an uninterrupted transfer of the load from inverter to mains and vice-versa. It also transfers the load to input mains in case of overload, load short-circuit, inverter fault condition or based on manual input. During overload and short-circuit, re-transfer to inverter is automatically initiated once normal load conditions are restored. The load can be transferred to provided that the input supply is within the voltage and frequency tolerances (adjustable); otherwise the inverter operates with its internal frequency (free running) and the transfer to mains inhibited. Bypass The manual consists of a pair of manual switches (Q1 and ), which remove the UPS from the load for maintenance, while still supplying the load with power directly from the mains. Back-feed protection TLE Series is equipped, as standard feature, by a back-feed protection tool installed inside the UPS cabinet. The back-feed protection is a safety requirement for servicing personnel, according to IEC (General and Safety Requirements for UPS), realized by an electromagnetic contactor in series with the static switch of the line. It avoids back-feed current, via the automatic, in case of SSM failure during operation in battery mode. This protection works automatically by opening contactor (in series with the thyristors of the static switch) and eventually K7, and acts in case of internal defects of the system, or due to wrong manipulations on the manual. Battery The battery supplies the DC power to the inverter when the mains is missing or out of acceptable tolerances. It is normally sized to supply the inverter at rated load for the required back-up time. TLE Series can operate with different battery technologies Pb sealed (VRLA) Pb vented icd for short to long autonomy time. Superior Battery Management (SBM) The battery system of a UPS is a critical element, which defines system reliability and must be effectively maintained and monitored to ensure optimum reliability and protection of the critical load. To preserve UPS system reliability and battery lifetime, TLE Series provides a battery management feature know as SBM (Superior Battery Management). SBM is a programmable management feature that monitors the battery by periodically testing the battery system. The programmable features of SBM allow the user to select the frequency and type of battery tests that are to be performed. The frequency can range from once a week to once a year and the type of test can range from deep cycle to a short time discharge. All tests are performed automatically with the UPS in normal operation mode. The tests data are logged in the UPS events menu and any failure of the battery system is reported by alarm on the front panel alarm. SBM also gives the user the ability to perform a manual test at any time. True battery autonomy SBM also performs the ability to calculate true battery autonomy and remaining back up time, during a mains outage, based on effective UPS load. Based on real autonomy time, the UPS initiate the shutdown procedure, named stop operation, starting when the remaining time is limited to 3 min. (adjustable) generating an alarm to warn the operator or to start-up the load shut down procedure. Battery voltage compensation Battery floating voltage is compensated according to effective operating temperature; this feature preserve battery from aging do to temperature effects. Fault current back to mains Inv erte r Battery charging/discharging current monitoring via iupsguard Page 5

6 Mimic touch screen display TLE Series UPS is equipped with menu-driven touch screen display panel, easy to read, with UPS status, metering, parameter settings and configuration. This user-friendly display panel provides: Critical measurement of input, output and battery included with mimic diagram Quick operational status Measurement and operational status of RPA system Different access level for user and service Multilanguage communication interface supporting: English, German, Italian, Spanish, French, Finnish, Polish, Portuguese, Czech, Slovakian, Chinese, Swedish, Russian and Dutch Functionality can be programmed to meet customer needs by changing parameters. Integration with BMS TLE Series can be easily integrated into a BMS (Building Management System) by Customer Interface board, RS232 port or SMP card which help to exchange information about the status of the UPS. Serial Port J35μP - RS2332 Total remote management of the system using software GE Power Diagnostics, GE Data Protection or GE Service Software for system protection and management of the UPS systems. Customer Interface board UPS supervision capability RJ45 connector for communication 6 programmable potential free alarm contacts Emergency Power OFF contact Gen-O Input contact Control Input contact The Gen-O contact integrated, allows operating in combination with an external emergency generator by defining the operation mode of the UPS by programmable setting. battery charging enable / disable on generator enable / disable synchronization on generator enabled / disable SMP card This optional SMP (Standard etwork Management Protocol) Plug In Card allows the UPS to communicate over a LA or interface through all major building management systems (BMS). Integrates a modern web server for UPS monitoring via LA, drives remote server shutdown in case of critical UPS alarms and works as Modbus TCP Converter as well as Modbus RTU 485. SMP is available as option. Page 6

7 Operation modes ormal operation mode VFI (Voltage Frequency Independent) Under normal conditions the load is permanently powered by the inverter with constant amplitude and frequency. The rectifier, powered by the mains, supplies the inverter and the battery-charger keeps the battery fully charged. The inverter converts the DC voltage in a new AC sine wave voltage with constant amplitude and frequency independently from the input mains power. eboost operation mode - eboost high efficiency (up to 99%) - fast power transfer (< 2ms) When the eboost operation mode is selected, and the mains power is available, the load is normally powered through the automatic. When the mains voltage is detected out of the prescribed tolerances, the load is automatically transferred to the Inverter. When the mains recovers, the load returns to the automatic after a variable time defined by the control unit. charge r charge r Inv erte r Inv erte r M a nual by p ass eboost TM can be operated in in single and in RPA mode, up to 6 UPS modules in parallel, with all units operating and switching as one through redundant communication bus. Mains failure operation When the mains is no longer within acceptable tolerances, the battery will provide the DC power to the inverter. The inverter will maintain continuous AC power to the load until the battery voltage reaches the lower limit of the Inverter operation capability. During the discharge, the displays shows the estimated time that the battery can support the critical load. Prior to complete battery discharge, the "stop operation" alarm (shutdown imminent) warns the operator that the battery is almost discharged and the UPS is about to shut down. Mains recovery operation As soon as the AC input power recovers, the rectifier will start automatically, supplying DC power to the inverter and recharging the battery. If the inverter was previously shut down due to low battery, the load will be initially supplied by mains through the automatic. When the battery is sufficiently recharged to ensure a minimum time of operation with the present load, the inverter will start automatically and the load will be transferred back to the inverter. charge r Inv erte r Inv erte r In normal operation, the load is supplied by the inverter. When the control system detects a fault in the inverter, an overload condition or a short-circuit condition, the automatic will transfer the critical load to the mains without interruption. When the inverter recovers, or the overload or short-circuit condition is corrected, the load will be automatically transferred back to the inverter. If the UPS is unable to return to normal mode following an automatic transfer to mode, an alarm condition will be initiated. A manual (operator initiated) will not be considered as an alarm condition. The manual circuit consists of manual switches Q1 and, which permit transfer of the load directly to the unconditioned AC power without interruption, leaving the UPS available for maintenance. Frequency converter TLE Series can run as frequency converter 50 to 60 Hz or vice-versa. and manual functions are inhibited, therefore the load cannot be transferred to mains in case of overload, short circuit, or inverter failure. Rectifier charge r Battery charger Battery charge r Inverter Inv erter Inv erte r Page 7

8 Reduntant Parallel Architecture (RPA ) Parallel System Operation Whenever a UPS are applied in mission critical applications, a single unit protection is no longer sufficient. To respond to this requirement for the highest level of reliability, GE developed a redundant-parallel system, known as RPA (Redundant Parallel Architecture), a GE exclusivity. All the inverters equally share the load. Two or more equal power units can be paralleled to increase the output power (paralleling for capacity) or to improve the overall reliability of an UPS system (paralleling for redundancy). The outputs of parallel units are connected to a common power bus, and in normal operation the units connected on the parallel bus share the load equally. The modular concept of TLE Series allows parallel operation of up to 6 units, without using paralleling switchgear, external circuits or common control circuitry. Parallel for power capacity Several units can be paralleled in order to achieve output power greater than the maximum power of a single unit. The maximum total power shared between the paralleled units is equal to the total installed nominal power. In the event of a failure of one unit, the power supplied by the UPS system becomes insufficient and the load will be transferred to the mains source. Parallel units for redundancy The nominal power rating of the n out of n+1 redundant paralleled modules must be equal to or higher than the required load power. The load will be equally shared by the n+1 units connected on the output bus. In case of one of the n+1-paralleled units trip off-line, the remaining (n) modules will supply the load, maintaining conditioned power to the critical load. From this results higher reliability and security for the load plus a higher MTBF (Mean Time Between Failures). RPA features The TLE Series parallel system is designed to provide a complete Redundant Parallel Architecture, and is free from common equipment. ot only the inverters but also the functions are redundant. When one UPS needs maintenance or service, the load is powered by the other units. The redundant communication bus to which all units are connected keeps each unit informed about the status of all the other units. The control panel located on each unit allows controlling and monitoring the status of this unit. System control A high-speed redundant, serial communication bus guarantees the exchange of data and thus the communication between the CPU's of each unit. Each module controls is own function and operational status and communicates with all other modules, in order to act or react if necessary, adapting to the new conditions. Synchronization All units are identical, but one unit is arbitrarily selected as the reference and all the other units synchronize to this unit, which in turn synchronizes to the mains voltage, as long as the latter is within tolerances. In case of reference failure, another unit in the parallel system is automatically chosen to take over the reference role. The input for all the units of the parallel system must be supplied from the same AC source (no phase shift allowed between them). Load sharing On each unit of the parallel system, inverter output voltage and current are measured and applied to a load sharing bus. An eventual difference between the units is therefore automatically equalized. Page 8

9 RPA operation modes ormal operation mode When the system is in normal operation mode, all the rectifiers as well as all the inverters of the installation are operating. The mains supplies the parallelconnected rectifiers. Each rectifier supplies both battery and inverter by converting the mains AC voltage into a DC voltage. All the inverters equally share the load. Inv erte r Inv erte r Rectifier failure Rectifier disturbance mode is recognised by a disturbance in one or more rectifiers. The disturbed rectifier(s) do not supply any energy. Depending on the set-up, defined by the customer, the inverters of those single units having disturbed rectifiers, will draw their energy from the battery or RPA will immediately isolate the disturbed unit. The other installations continue in normal operation mode. All the inverters acting jointly, as described under normal operation mode' sustain the load. Inv erte r Rectifier Inv erte r Bypass mode Bypass mode is triggered when all the available inverters are unable to sustain the load due to overload or due to failure on UPS units. All inverter output contactors (K7) are opened automatically and the inverters, depending on the type of disturbance, continue to operate and the rectifiers continue to charge the batteries. Once the load level returns in normal condition the UPS switch back to normal operation mode. Q4 K7 Q1 Inverter Q4 K7 Q1 Inverter Battery mode A mains failure will trigger battery mode. The rectifiers do not supply any energy. The batteries supply the inverters with the required energy. The inverters supply the load as described under normal operation mode. If the mains do not recover and the batteries are used up, the load will be cut off. In this situation, when the mains recover, the parallel will supply the load. For security reasons, the inverters will have to be switched O manually. Rectifier Inv erte r Inverter disturbance 'Inverter disturbance mode' is triggered by a disturbance in one or more inverters. As long as the output of the remaining single units is sufficient to sustain the load, RPA remains in normal operation mode but the system may become parallel and is no longer redundant. The inverter output contactors (K7) of the disturbed unit open automatically to isolate the disturbed unit from the load. The rectifier of the disturbed unit, depending on the nature of the disturbance, will continue to charge the battery. The disturbed unit can also be completely separated from the mains for service operation. Inv erte r eboost in RPA All the UPS run on eboost supplying the load via the. In case of perturbation on input mains all the UPS switch to normal operation till the normal situation is recovered. Maintenance mode The maintenance mode is used in case, all units are switched off and the system output has to remain powered. One maintenance for each UPS. Maintenance on each UPS subcomponents can be made voltage free. During this mode of operation the load is supplied directly by mains. Rectifier Inverter Battery Rectifier Inv erte r Inverter Rectifier Inverter Battery Page 9

10 Typical connections Single unit - Common input mains Single unit - Separate input mains UPS automatic 3-pole rectifier inverter L1,L2,L3 load 3-pole 3-pole UPS automatic rectifier inverter L1,L2,L3 load battery battery Common input mains for rectifier and (internal bridge). Separate input mains for rectifier and ; increased load reliability by providing two separate energy sources or different input mains paths. Parallel unit (RPA) - Common input mains Parallel unit (RPA) - Separate input mains UPS 1 automatic 3-pole rectifier inverter L1,L2,L3 3-pole 3-pole UPS automatic rectifier inverter L1,L2,L3 battery UPS 2 automatic 3-pole rectifier inverter L1,L2,L3 load 3-pole 3-pole battery UPS 2 automatic rectifier inverter L1,L2,L3 load battery battery Common input mains for rectifier and. Separate input mains for rectifier and. Rectifier can have different power sources while shall have the same sources for all the units in parallel. OTE The UPS is designed for T System. The input neutral shall be grounded at source and shall never be disconnected. 4 pole breaker shall not be used at the UPS input (see also IEC 60364, IEC 61140, IEC 61557). The protection of the UPS mains input must be exclusively with 3 pole breakers. Disconnection of the eutral is not permitted. The UPS needs the connection of the eutral to the input, to guarantee the function in T mode (eutral-earth). Page 10

11 Integrated diagnostic black box Black box far data acquisition and analysis: Waveform capture, diagnostic and trend analysis. Simultaneous acquisition of 32 channels. Sampling frequency up to 10kHz. Smart trigger capability with up to 16 independent trigger sources to record only specific events with pre/post trigger data acquisition. Buffer depth of 1000 samples per channel: each event is recorded for s.f. 10kHz 8 buffers to record up to 8 events, extended with external USB mass storage devices. Software & Connectivity Remote monitoring GE remote monitoring solution is an anytime, anywhere concept in UPS status monitoring and alarm notification supporting all GE UPS product lines. Accessing the latest site information via Web and being alerted by or SMS, it enables the user to make timely decisions in case of changing critical conditions. With comprehensive data collection and analysis it improves diagnostics capability and enhances response time. 24*7 remote access to your UPS data using standard web browser alerting in case of event direct and immediately to you cell phone or by Regularly operational reports with proactive information on critical data Preventative information using PMAD (Preventative Maintenance & Advanced Diagnostics) feature Possibility to reduce intervention and onsite work GE Data protection software GE Data Protection software can communicate with the UPS over RS-232, USB or SMP to receive status information and measurement values of the UPS. In case of a critical condition (time on battery, remaining battery autonomy time or low battery) for the load, the software starts a controlled shutdown. An enhanced alarm management system provides the possibility to start applications, send messages, and send s for every upcoming or disappearing alarm. Page 11

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