MGE UPS Systems EPS 6000, Руководство по установке

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Electrical connections and cabinet interconnections will vary
depending upon the configuration of your EPS 6000 shared
UPS system. Refer to the installation drawings supplied with your equipment. General
information follows.
Before making any electrical connection, verify that the SSC’s circuit breakers and switches
Q5N, Q3BP, SW1, and SW2 are in the OFF (open) position. For each UPS module, verify that
the main AC input circuit breaker Q1, the UPS module isolation circuit breaker Q5N, and all
the battery disconnect circuit breakers QF1 are in the OFF (open) position. Customer-supplied
upstream (Q4S) and downstream protective devices and distribution circuits should be OFF
(open).
The lugs used to secure the cables should be torqued as per the recommendation listed in
“Cable preparation for field wiring,” MGE document 9-00038-00.
The connections to be made are the three phase and
ground cables from the utility AC power source to each
UPS module. Complete wiring instructions for your installa-
tion are provided on the installation drawings supplied with
the equipment.
For systems without input isolation, the input power connections will terminate at the busbars
leading to circuit breaker Q1. In systems with input isolation, the input power connection will be
made to an isolation transformer.
The bypass AC input source is connected to the SSC. The
connections to be made are the three phases, optional
neutral, and ground connections. Termination of these
connections within the SSC are marked on the installation
drawings supplied with the equipment.
If the maintenance bypass option is included, the maintenance bypass AC input source is
connected to the MBC. The connections to be made are the three phases, optional neutral,
and ground connections. Termination of these connections within the MBP are marked on the
installation drawings supplied with the equipment.
3.5.2.2
Bypass AC Input
(Mains 2) Customer
Connections
3.5.2.1
Main AC Input
(Mains 1) Customer
Connections
3.5.2 Connection
3 — 4 Installation, Shared Systems
EPS 6000 Uninterruptible Power System