GE Industrial Solutions LP 33 Series 50 & 60 kVA Installation Guide - Manual (Page 30)

Modifications reserved Page 30/42
OPM_LPS_3UI_50K_60K_0US_V010.doc Installation Guide LP 33 Series 50-60 kVA
3.9.2 Dual input utility (option)
Fig. 3.9.2-1 Dual input utility (option)
Dual input utility
On request, the UPS can be delivered for dual input
utility.
Two independent lines (F2 and F3) supply separately
the rectifier and the bypass inputs
With this configuration, when the rectifier-input fuses
are opened, the automatic bypass and the
maintenance bypass are supplied by the other line.
Fig. 3.9.2-2 Terminals for dual input utility
X1 Mains 1 - Rectifier input utility connection
L1-1 = Rectifier Phase A
L2-1 = Rectifier Phase B
L3-1 = Rectifier Phase C
N1 =
Mains Neutral
PE = Main Ground
X2 Mains 2 - Bypass input utility connection
L1-2 = Bypass Phase A
L2-2 = Bypass Phase B
L3-2 = Bypass Phase C
N =
Mains Neutral
X3 Load - Output load connection
L1 = Load Phase A
L2 = Load Phase B
L3 = Load Phase C
N2 = Load Neutral GND = Load Ground
Connect wire to the terminals by using
appropriate tools and appropriate torque.
Torque specification for Input / Output and DC
power connections on Terminals: Section 3.8.1.
LP 33 Series / 50 kVA 350 MCM Max. rating X1, X2 , X3 and X4 terminals:
LP 33 Series / 60 kVA 350 MCM
NOTE !
For UPS correct operation, the input utility phase rotation must be clock-wise.
Inside the UPS, all neutrals N1 and N2 are connected together.
NOTE !
This UPS is designed to operate in a wye-configured electrical system with a solidly
grounded neutral.