Specifications
98AEtypMMSspec_RevB.doc
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Copyright © 2007, Mitsubishi Electric Power Products Inc.
SP-0011 Rev. B 9/5/09
SECTION 16610
UNINTERRUPTIBLE POWER SUPPLY MULTI-MODULE SYSTEM (UPS MMS)
1. GENERAL
1.1. SUMMARY
A. This specification describes a three-phase, continuous duty, on-line solid-state
Uninterruptible Power Supply Multi-Module System, hereafter referred to as the UPS
MMS and a Critical Load Cabinet (CLC) that parallel connects individual UPS Module
power circuits to offer system capacity or redundancy to support the critical load.
B. The UPS shall operate utilizing the existing power distribution system to provide a high
quality, reserve source of power to electronic equipment loads. The system shall consist
of a rectifier, system battery; solid-state inverter, automatic static bypass transfer circuit
and integral maintenance bypass circuit.
C. The manufacturer shall design and furnish all materials and equipment to be fully
compatible with electrical, environmental, and space conditions at the site. It shall include
all equipment to properly interface the AC power source to the intended load and be
designed for unattended operation. The CLC cabinet shall be manufactured with a
modular design to allow for ease of system expansion with the addition of like rated UPS
Modules.
1.2. STANDARD
The UPS MMS has been designed in accordance with and complies with the following
standards:
A. UL 1778 - (Underwriters Laboratories) Standards for UPS Equipment.
B. CSA 22.2 - (Canadian Standards Association - CUL Equivalent). [UL1778 and CSA 22.2
labels attached to each UPS Module.]
C. IEC - (International Electro-technical Commission) Semiconductor Converter Standards
(#62040-3.2.16).
D. IEEE 587, ANSI C62.41 1991 Standards for Surge Withstand Ability.
E. UL 891 [CLC manufactured for UL891 compliance]
F. ISO 9001 Quality Assurance program.
1.3. UPS MMS SYSTEM DESCRIPTION
1.3.1. Components
The UPS system shall consist of the following major equipment and can be divided
into two sections and shall be comprised of the following:
A. Hybrid Converter Section:
1. AC input
2. Converter input contactor
3. Converter input fuses
4. Input harmonic filter
5. Hybrid converter utilizing high power diode bridge rectifier insulated Gate
Bipolar transistor (IGBT) applied charger/booster.










