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
4.8.5
Use of TLE Scalable Series 40 - 150 as frequency converter
NOTE !
The UPS needs the connection of the Neutral at the input Bus Bars.
When the TLE Scalable Series 40 - 150 is utilized for different output frequency compared to the input
frequency, the Automatic Bypass function is disabled, therefore the Load cannot be transferred to Utility
in case of overload, short circuit, or inverter failure.
In situations where the UPS needs to be powered down for maintenance purposes, the critical Load
must also be powered down during this time.
When the set-up parameters of the UPS are set for frequency converter, the
SEM Operation Mode
is
automatically disabled.
Fig. 4.8.5-1 Interconnection links BR1, BR2 and BR3
In order to avoid improper operation, only the Rectifier input should be powered (
L1-1
,
L2-1
and
L3-1
/ Fig. 4.8.2-1)
, therefore the interconnection links
BR1
,
BR2
and
BR3
, on the input bus bars, MUST BE
REMOVED. See pictures above and Fig. 4.8.2-1.
Special care must be taken in choosing the fuse ratings installed in the output distribution (max.
20% of the UPS rated current).
Avoid high inrush current due to transformer magnetization or motor starting.
NOTE !
At site only a QUALIFIED SERVICE ENGINEER may change a unit, initially delivered
as a frequency converter, into a normally operating “standard” UPS.
Battery
_
+
Q1
PE
L1 L2
Load
L3
L1-1 L2-1 L3-1
1 - Rectifier Utility
L1-2 L2-2 L3-2
2 - Bypass Utility
BR1
BR2
BR3
N
INTERCONNECTIONS LINKS
BR1, BR2 and BR3
MUST BE REMOVED
EP
O
EP
O
-
+
XA
Q1
TLES
_UL
_04
0-15
0_S
1_U
PS c
onn
ecti
on s
epa
rate
_01
US