Critical Power
Modifications reserved
Page 55/69
GE_UPS_ISG_TLE_SUL_M62_1M0_2US_V010.docx
Installation Guide
TLE Series 625 - 750 - 1000 UL S2
4.9.6
Use of TLE Series 625 - 750 - 1000 as frequency converter
NOTE !
The UPS needs the connection of the Neutral at the input Bus Bars.
Permanently running the UPS without bypass supply requires a change of
internal wiring to be performed by a
GE SERVICE TECHNICIAN
only.
When the
TLE Series 625 - 750 - 1000
is utilized for
different
output frequency compared to the input
frequency
, the
Automatic Bypass
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
eBoost™ Operation Mode
is automatically disabled.
Fig. 4.9.6-1 TLE Series 625 - 750 - 1000 - Interconnection links BR1, BR2 and BR3
In order to avoid improper operation, only the
Rectifier Utility input
should be powered
(
L1-1
,
L2-1
and
L3-1
)
, therefore the interconnection links
BR1
,
BR2
and
BR3
, on the input bus bars,
MUST BE
REMOVED
. See
Fig. 4.9.6-1
.
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 !
Only a
GE SERVICE TECHNICIAN
may change a unit from frequency converter into a
normal UPS (with bypass) or a normal UPS to a
Frequency Converter
(with bypass).
INTERCONNECTIONS LINKS
BR1, BR2 and BR3
MUST BE REMOVED
!
1
Rectifier
Utility
BR3
2
Bypass
Utility
BR2
BR1
Load
L3
Load
L2
Load
L1
BR3
BR2
BR1
L2-2
L3-2
N
Utility Neutral
Load Neutral
N
Utility Neutral
Load Neutral
L2-1
L3-1
L1-2
L1-1
Q1
Q1
TLE Series 625 & 750
TLE Series 1000