Specifications
98AEtypMMSspec_RevB.doc
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Copyright © 2007, Mitsubishi Electric Power Products Inc.
SP-0011 Rev. B 9/5/09
A. Configuration: 3-phase, 4-Wire
B. Nominal Output Voltage: 480V, 600V
C. Nominal Dynamic Voltage Regulation: 1% for Unbalanced Load
D. Manually Adjustable Output : 5%, Voltage Range:
E. Voltage Transient Response:
1. 100% Step Load: 2%
2. Loss or Return of AC Input: 1%
3. Inverter Bypass Transfer: 5%
[Voltage Transient Response shall not exceed the above and shall recover to
within: Nominal Voltage Regulation tolerance within 16.7 msec.]
F. Output Frequency: 60 Hz [0.05% UPS Module in asynchronous mode -
bypass source unavailable] (Synchronization Master UPS Module)
G. Output Frequency Slew Rate: 1 through 10 Hz/second [Selectable in 1
Hz/second increments] [UPS Module inverter main synchronization reference -
bypass source] (Synchronization Master UPS Module)
H. Voltage Phase Angle Displacement:
1. 1°for 100% balanced Load
2. 3°for 100% unbalanced Load
I. Output Voltage Total Harmonic Distortion:
1. 2% Maximum at 100% Linear load
2. 5% Maximum at 100% Non-linear load
J. Output Overload Capability:
1. 105% to 125% for 10 minutes (Voltage Regulation maintained)
2. 126% to 150% for 1 minute (Voltage Regulation maintained)
K. Output Fault Clearing:
1. Typically 1000% for 1 cycle (Utilizing bypass source)(100kVA to 225kVA)
2. Typically 500% for 1 cycle (Utilizing bypass source)(300kVA to 750kVA)
2.1.5. UPS Module DC Input and Battery System Specification
1. Voltage: 480V DC Nominal, 400V DC Minimum
2. DC Ripple (Normal Operation): Less than 2% of DC Voltage
A. The Battery System shall be sized to provide the specified back-up time to the
inverter when the UPS is supplying 100% rated load.
B. Each Battery System shall include a disconnect 600V DC circuit breaker to
facilitate isolation of UPS Module DC Input and the Battery System. The DC
Circuit breaker shall incorporate an UVT relay and auxiliary contact
connections to the UPS Module control for prevention of incorrect start up and
shutdown sequencing.
C. The battery system shall be capable of operating in an average ambient
temperature of 25°C, with excursions of 16°C to 32°C and shall be sized as
follows:
Float Voltage: 545V DC (2.25 to 2.27 V/cell)
Final Voltage: 400V DC (1.67 V/cell)
2.1.6. UPS Module Efficiency
UPS Module
Capacity (kVA)
Battery to AC
(100% Load)
AC to AC
(100% Load)
100 93.5 93.5