GE Industrial Solutions SG Series 100 – 120 – 150 kVA Installation Guide - Manual (Page 23)

3.8.2 Power connection with common input utility
LOAD
SGT
5000_100-
150
_U
PS conn
e
c
ti
o
n
com
m
on_GE_0
1
US
RECTIFIER & BYPASS
PE
PE
L3
-1
L2-
1
L1-
1
N
L1
N
L2
L3
1 - INPUT
Fig. 3.8.2-1 Power connections Common Input Utility
Common Input Rectifier / Bypass
L1-1 Rectifier + Bypass Phase A
L2-1 Rectifier + Bypass Phase B
L3-1 Rectifier + Bypass Phase C
N PE Neutral Ground
Output Load
L1 Load Phase A L2 Load Phase B L3 Load Phase C
N PE Load Neutral Load Ground
Bus bars BR1, BR2 and BR3 MUST REMAIN CONNECTED.
Cable terminations are to the Rectifier Input Lugs and Output Lugs as shown above.
Connect wire to the Lugs using appropriate tools and appropriate torque.
Torque specification for input/output and DC power connections on Bus Bars: see Section 3.8.1.
NOTE !
This UPS is only designed to operate in a wye-configured electrical system with a
solidly grounded neutral.
If the UPS is equipped with an input transformer, the secondary of the transformer
must be wye-configured with neutral solidly grounded.
Modifications reserved Page 23/37
OPM_SGS_ISG_M10_M15_0US_V040.doc Installation Guide SG Series 100 –120 – 150 kVA