MGE UPS Systems EPS 7000, Installation Manual

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Description
EPS 7000 Single and Shared Systems
page 3 — 2
3.2 Connections
Install conduits and cables starting from the rear of the cabinet working your way to the front. Preferred conduit
layout is shown on the installation drawing.
3.2.1 Single Module Connections
Electrical connections and cabinet interconnection will vary depending upon the configuration of your EPS 7000
system. Refer to the installation drawings supplied with your equipment. General information follows.
Before making any electrical connections, verify that the UPS circuit breakers Q1, Q4S, and optional Q3BP and
Q5N are in the OFF (open) position. The battery disconnect circuit breaker QF1 should be in the OFF (open)
position (if there is more than one, all should be in the OFF position). Optional distribution circuit breakers should
be in the OFF (open) position. Customer-supplied 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.
3.2.2 Shared Systems Connections
Electrical connections and cabinet interconnection will vary depending upon the configuration of your EPS 7000
shared UPS system. Refer to the installation drawings supplied with your equipment. General information follows.
Before making any electrical connection, verify that the SSCs 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.