GE Industrial Solutions LP 33U Series 10 & 20 kVA Installation Guide - Manual (Page 18)

Modifications reserved Page 18/40
OPM_LPS_3UI_10K_20K_1US_V010.doc Installation Guide LP 33U Series 10 & 20 kVA / S1
3.7 ELECTRICAL WIRING
WARNING !
UPS installation and connection must be performed by QUALIFIED SERVICE
PERSONNEL only.
It is the responsibility of the installation technician to ensure that all local and
national electric codes are adhered to.
3.7.1 Utility input connection
WARNING !
Ensure that the AC and DC external isolators are OFF and locked out to prevent their
inadvertent operation.
Do not apply power to the equipment prior to the commissioning by a qualified
service engineer.
Before any other input connection, connect and check the grounding wire.
The UPS has available input terminations for the Rectifier and Bypass.
The unit may be powered from a common input source or dual input sources (option).
Common input Rectifier & Bypass
Fig. 3.7.1-1 Common Input Rectifier & Bypass
The same power source is to be used for both
Bypass Supply and Rectifier Input (input F1).
Bear in mind that when the Utility Fuses are
opened there is a supply failure to the Rectifier
as well as to the Bypass and Manual Bypass.
Dual input Rectifier & Bypass (option)
Fig. 3.7.1-2 Dual Input Rectifier & Bypass (option)
The Bypass and Rectifier inputs are to be
powered from different Utility supplies (F2 and
F3 inputs).
In this case, when the Rectifier Input Fuses are
opened, the Bypass and the Manual Bypass
are supplied by the other source.