MGE UPS Systems GALAXY PW 100 kVA, Installation Manual

Page: 12 / 30

12 -
E-51028231XU/BH
Connection of power circuits
Before making connections,
check that switches Q1, Q4S,
Q3BP, Q5N and QF1 are in the
"open" position.
General:
Remark. See page 4 for information on
the supplied cables and wires.
◗ open the doors and remove the lower
terminal shields (secured by screws to
the cubicle chassis) of the UPS
cubicles;
◗
connect the power cables;
◗
each cubicle must be earthed;
◗ all the cubicles must be
interconnected for equipotential
bonding, forming a mesh which is itself
connected to the building structure and
earthing electrode;
◗ the connection drawings hereafter
show the cubicles with doors open and
terminal shields removed.
Important:
For parallel UPSs with an external
bypass unit, the power connections
between each UPS cubicle and the
external bypass unit must imperatively
be of the same length.
Outside the cubicles, separate the
auxiliary wiring from the power cables.
UPS cubicle
See figure 12 for 20 to 60 kVA units,
and figure 13 for 80 to 120 kVA units,
and figure 14 for 160 to 200 kVA units.
B and - cables are connected
by lugs on 8 mm diameter pins for 20 to
120 kVA units, or by lugs on 12 mm
diameter holes for 160 to 200 kVA
units.
Normal/Bypass AC input and load
cables are connected by tunnel
terminals to the 20 to 60 kVA units, or
by lugs on 10 mm diameter holes to the
80 to 120 kVA units.
Elevation of connections from ground
for 20 to 60 kVA units:
◗ normal/bypass AC input and load: 310
mm;
◗
battery: 280 mm.
Elevation of connections from ground
for 80 to 120 kVA units:
◗ normal/bypass AC input and load: 340
mm;
◗ battery: 310 mm.
Elevation of connections from ground
for 160 to 200 kVA units:
◗ normal/bypass AC input and load: 410
mm;
◗
battery: 410 mm.
Installation (cont.)
(qualified personnel only)