Electrical Wiring; Utility Input Connection - GE Digital Energy LP 33 Installation Manual

Digital Energy™
3.7

ELECTRICAL WIRING

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

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 separate input sources (option).
Fig. 3.7.1-1 Common Input Rectifier & Bypass
Fig. 3.7.1-2 Separate Input Rectifier & Bypass (option)
OPM_LPS_3UI_10K_20K_0US_V010.doc
Common input Rectifier & Bypass
Separate input Rectifier & Bypass (option)
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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.
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.
Installation Guide LP 33 / 10 - 20 kVA
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