Critical Power
Modifications reserved
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GE_UPS_ISG_TLE_SUL_40K_M15_1US_V010.docx
Installation Guide TLE Scalable Series 40 - 150 UL S1
4.7
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.
Refer to the “
Safety prescriptions - Installation
” described on
Section 1
.
4.7.1
Utility input connection
NOTE !
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 if desired.
Common Input Utility Rectifier & Bypass
Fig. 4.7.1-1 Common Input Utility Rectifier & Bypass
The same power source is to be used for both
Bypass Supply
and Rectifier Input (input
F33
)
.
Bear in mind that when the Utility fuses are
opened there is a supply failure to the Rectifier
as well as to the Automatic Bypass.
In this case, the interconnection links
BR1
,
BR2
and
BR3
on the input terminals or bus
bars MUST REMAIN CONNECTED.
Dual Input Utility Configuration Rectifier & Bypass
Fig. 4.7.1-2 Dual Input Utility Rectifier & Bypass
The Bypass and Rectifier use different power
sources (
F31
and
F32
inputs).
In this case, when the Rectifier-input fuses are
opened, the Automatic Bypass is supplied by
the other connection.
Always verify that the received UPS is as per the configuration ordered.
While installing UPS dual input utility, the interconnection links
BR1
,
BR2
and
BR3
MUST BE REMOVED. See
Fig. 4.8.2-2
.
Connect a single input
Neutral
to
Bypass Utility
(inside the UPS, common
Neutral
for
Bypass
and
Rectifier)
.