MGE UPS Systems Comet TM 5 - 30 kVA user manual Battery duration, Return of AC input power

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operation (cont')

3

AC input

2

6

load

7

5

Fig. 20

battery duration

During an AC input power failure, the duration of inverter operation on battery power depends on:

■ the rated capacity of the battery; ■ the power drawn by the load; ■ the battery temperature;

■ the age of the battery.

The rated backup time corresponds to a minimum for a new battery and with the inverter operating at the rated load.

The real backup time, which depends on the power drawn, may be greater if the inverter operates at less than full rated load. It is possible, during operation on battery power, to increase the battery backup time by reducing the power drawn by the load (shedding of non-priority circuits).

Comet has a battery monitoring function that calculates the remaining backup time. This function may be implemented with a communications option.

A low battery shutdown warning signal is available via the standard communication connector 15 for remote indications. It warns the user of upcoming battery shutdown at a user-determined level of remaining power.

On the UPS itself, the buzzer

17 beeps louder and more rapidly, and the

orange "battery status" light

20 flashes.

The end of battery power occurs when the battery is fully discharged. At this

point, the inverter 7 shuts down.

The recharge time required to restore the battery to its rated backup power varies between 4 and 16 hours depending on the Comet model.

return of AC input power

When the AC input power failure ends or power returns to within tolerances: ■ if the end of battery backup power was not reached, Comet returns to the operating status described above (figure 19);

■ if the end of battery backup power was reached, the rectifier 2 , the charger 6 and the inverter 7 automatically start up (the inverter must be manually started if the system is in manual start mode).

6.2

Comet installation and user manual: E-6761200XT/FA

Merlin Gerin by MGE UPS SYSTEMS

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Contents Merlin Gerin Comet 30 kVASafety recommendations Norsk SikkerhedsforskrifterPortuguês Recomendações de segurançaSuomalainen TurvallisuusohjeetSvensk SäkerhetsföreskrifterContents Appendices Maintenance and servicingOptions GlossaryIntroduction to Comet Safety information Identification to CometConfiguration Identification plateFunctional diagram Key for figures 2 toComet layout seen from above GeneralFinal positioning figure Electrical diagram for power connections InstallationSpecial precautions Connection diagram for a single AC inputConnection of power cables figures 10 to Connection sequence for 5 kVA CometConnections for Comet series 11 5kVA Connections for Comet series 31 5kVAConnection sequence for Comet other than 5kVA Connections for Comet series 11 7.5/10kVAConnections for Comet series 31 7.5/10/15/20kVA Connections for Comet series 33 10/15/20/30kVAControls and indications Controls and indicationsBasic controls and indications Key to figureThis light indicates that Comet is Buzzer Inverter on button Inverter off buttonFault reset Controls and diagnostics display figureBuzzer reset Diagnostics displayStart-up Powering up to CometManual maintenance bypass switch Preliminary checksInverter start-upsystem in manual start-up mode Inverter shutdown Powering downShutdown Merlin Gerin by MGE UPS Systems Normal operation Operation on battery power figureOperation Battery duration Return of AC input powerBattery monitoring tests Inverter Overload curveStatic bypass Overload curve When an overload occursOverloads on 5 kVA Comet S11 or S31 Mains 2 out of tolerance Merlin Gerin by MGE UPS Systems Status or action producing the indication AlarmsAlarm indications table Battery circuit breaker in off position End of battery powerChopper overtemperature see fault Manual bypassManual bypass switch Communication SUB-D 15-pin connector connectionSUB-D 15-pin connector Standard functionsTalk Monitor PlusContact Jbus / RS232 and Jbus / RS485Battery maintenance Maintenance and servicingSafety reminder Preventive maintenance by user Visual checkAnnual check Maintenance contractsCustomer training Options Extended battery cabinetAdditional battery cell characterisitics Connection of an additional battery cabinet Connection of an additional battery cabinetShunt trip connection Connection diagram for MX shunt trip to terminal block XR3Emergency off Power connection diagrams Full galvanic isolation transformer standard Comet equipmentPower connection diagram Separate Mains 2 transformer AC bypass inputFrequency converter Hot standby system Harmonics filter Full isolation transformer and harmonics filter Combined optionsFull isolation transformer and separate Mains 2 transformer Example of a Comet seriesSeparate Mains 2 transformer and harmonics filter Relative positions of the various cubiclesAppendices General characteristicsRange characteristics Comet series 11 general characteristics Comet series 31 general characteristics Comet series 33 general characteristics Selection of cable cross-sections Schematic diagram for protection devices Selection of protection devices11.7 Connection of the cable shielding Glossary 12.2 6761200XT MGE UPS Systems S.A

Comet TM 5 - 30 kVA specifications

MGE UPS Systems Comet TM 5 - 30 kVA is a reliable and efficient uninterruptible power supply (UPS) designed to ensure the smooth operation of critical systems in various applications. This UPS is particularly suited for data centers, telecommunications, and industrial environments that require high availability and robust power protection.

One of the main features of the Comet TM series is its modular design, which allows users to scale the UPS capacity as needed. This flexibility is crucial for businesses that anticipate growth or fluctuating power requirements. The UPS is available in a range of capacities, from 5 kVA to 30 kVA, allowing for tailored solutions that fit specific power needs.

The Comet TM is equipped with advanced double conversion technology, which provides clean and reliable power, isolating the connected equipment from input voltage disturbances. This technology ensures that any fluctuations in the mains supply, such as voltage sags or surges, do not affect the operation of sensitive electronic devices. Additionally, this UPS features a wide input voltage range that contributes to improved efficiency and reduced energy consumption.

An impressive aspect of the Comet TM is its high-efficiency mode, which optimizes energy consumption while maintaining power quality. This mode reduces operating costs and contributes to lower carbon footprints, making it an environmentally friendly choice. Furthermore, the UPS incorporates intelligent battery management systems, which enhance battery performance and extend their lifespan. This is essential in minimizing downtime and ensuring that backup power is readily available when needed.

The user-friendly interface of the Comet TM allows for easy monitoring and management of the system. With graphical displays and comprehensive alarms, users can promptly identify potential issues and take corrective actions. Remote management capabilities are also built into the system, enabling users to monitor and control the UPS remotely, which is particularly beneficial for businesses that operate across multiple locations.

In summary, the MGE UPS Systems Comet TM 5 - 30 kVA is designed for organizations that need reliable power protection and high efficiency. With its modular scalability, advanced double conversion technology, high-efficiency mode, intelligent battery management, and user-friendly interface, the Comet TM series stands out as a robust solution for critical power applications. Its combination of features ensures that businesses can maintain uninterrupted operations while benefiting from cost savings and a reduced environmental impact.
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