 Today's business climate requires UPS Systems that offer not only
Reliability but also Flexibility. Mitsubishi Electric Multi-Module Systems
(MMS) utilize UPSs with independent parallel control and bypass circuits,
and a unique Critical Load Cabinet (CLC) to offer complete System
Reliability and Flexibility.
Parallel control circuitry, system static bypass and control circuitry
reside in each individual Multi-Module System UPS, optimizing control
redundancy and eliminating common control single points of failure. This
results in highly reliable system architecture.
For many installations, System Expansion with the addition of UPS modules is
required if future load demand becomes apparent. For most MMS available
today, the reverse scenario of System Reduction with the capability of
utilizing the removed UPS module is not possible without UPS module
modification. With the Mitsubishi Electric MMS, not only System Expansion
but also System Reduction is possible, with the capability to utilize the
removed UPS module for Single Module System (SMS) applications, because each
UPS module has independent static bypass and control circuitry. This System
Expansion and Reduction results in a highly flexible system configuration.
 9800AD Brochure
(.pdf)
| IGBT - Excellent Performance Characteristics |
 Mitsubishi Electric is the leading manufacturer of Insulated Gate Bipolar
Transistors (IGBT). IGBTs are utilized in the 9800AD Series UPS Systems.
These advanced, high-performance transistors provide a variety of
intelligent features:
- Large power capabilities
- High speed switching
- Low control power consumption
|
| Low Input Current Harmonics (THD) |
| 6% Typical (100% Load) |
| Heat Loss/High Efficiency |
| Use of IGBTs for the Inverter permits efficient switching speed (2kHz), thus
reducing heat dissipation in the UPS. (Higher efficiency means lower cost
per kilowatt to the customer.) |
| Operator-Friendly Control Panel Features |
- Mimic flow diagram
- Operator control station
- Touch panel input
|
| LCD Monitor |
- UPS metering
- Voltage/Current /Power status levels
- Simple start /stop operation
- History of events
|
| Critical Load Cabinet (CLC) |
 Independent Static Bypass Switch Circuit within each UPS module- Independent Parallel and Static Bypass Control Circuitry within each
UPS module
- Elimination of common control single points of failure
- System Maintenance Bypass Circuit with Electrical Mechanical
Interlocks as standard
- UPS MMS monitoring system
| CLC Monitoring System Features |
- Monitors complete UPS Multi-Module System
- Utilizes Ethernet and 10BaseT
- Touch screen operator terminal
- MMS mimic flow diagram and color status display
- MMS UPS module metering
- System Voltage/Current /Power
|
| Measurement displays |
- Individual UPS module and battery data screen
- System event and alarm screens
- Alarm history screens
- Remote web monitoring
- Trend data screens
- Operator function screens
- High communication capability
|
|
| UPS Module KVA Capacity |
| 100, 150, 225, 300, 375, 500 and 750kVA Modules |
| Standard Features |
- UL1778 / cUL, UL891 approved
- IGBT
- Conformally coated boards (industrial environment)
- Front access only (serviceability)
- DiamondSense battery self-test
|
| MMS Features |
- Parallel redundant or capacity system configuration
- MMS Capacity: Up to 8 UPS modules in parallel
- nstantaneous equal load sharing
- Individual UPS modules can be removed from an on-line system for
maintenance.
(Note: redundancy will be lost)
- System maintenance bypass as standard
- System load bank test circuit (optional)
- System flexibility
- Central system monitoring system Battery DC Link 480V DC
|
| Operating Environment |
- Low acoustic noise
- Temperature: 0~40C
- Relative humidity: 5~95% (non-condensing)
- Altitude: 0-9,000 feet (no derating)
- AC Input Rating
- -15%~ +15%
- Power: Rated kVA at 1:1.1 ratio
- 480 VAC (600 VAC using input transformer)
- THD (reflected current): 6% typical (100% load) 9% typical (50%
load)
- 3-phase, 4-wire, plus ground (Bypass: 4-wire, Rectifier: 3-wire)
- Frequency: 60Hz (±5%)
- Surge withstand: Meets IEEE C62.41-1991
|
| AC Output Rating |
- 480Y/ 277 VAC or 600Y/ 347 VAC
- 3-phase, 4-wire, plus ground
- Output power factor rating: (100-225kVA) 0.8~1.0 Lag (within output kW
rating) (300-750kVA) 0.9~1.0 Lag (within output kW rating)
- Frequency: 60Hz (±0.05%) (free running)
- Voltage accuracy: ±1%
- Transient recovery time: Less than 20 ms
- Load unbalance: 100% ±1% or less
- Step load change: 0~100% ±2%
- Load / Return of AC power: ±1% (at 100% load)
- UPS load transfer, bypass: 5% (at 100% load)
- THD (voltage): 2% (100% linear load); 5% (100% non-linear load)
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| One-Line Diagram |
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