Table of Contents
Advertisement
Chapter 4 Prerequisites for the UPS installation
Chapter 4 Prerequisites for the UPS installation
Attention! Before installing the UPS unit, check the Lenovo DCG support site at
http://datacentersupport.lenovo.com/
for any relevant installation Tips!
Search for either the UPS MT (5594) or the UPS serial number and press the magnifier
icon
This tips can be find in the category "Knowledge Base & Guides".
UPS Units overview
RT8kVA 6U Rack or Tower UPS (200-240V
•
RT11kVA 6U Rack or Tower UPS (200-240V
•
RT8kVA 6U 3:1 Phase Rack or Tower UPS (380-415V
•
RT11kVA 6U 3:1 Phase Rack or Tower UPS (380-415V
•
Important considerations
These are the important areas of consideration before installing any of these UPS units:
1. No power cord is shipped with these UPS units as they have to be hardwired to utility
power. Providing the hardwired power connection is customer responsibility
2. The correct earthing system must be present, the earthing system should be TN-S. For
further information see the section
3. No Residual Circuit Device (RCD) or differential circuit breaker is to be used. For further
information see
4. The maximum leak current can get very big. For the 8 kVA UPS units the maximum leak
current is 2 Ampères and for the 11 kVA UPS units the maximum leak current is 2.5
Ampères. For further information see
5. In case the UPS unit is fed by a Power Generator in order to bridge longer utility power
outages the slew rate of the Power Generator must be adjusted. For these UPS units the
slew rate is 1 Hz / s. See also
6. If the UPS unit is run in High Efficiency mode, then it is strongly recommended to install
voltage and frequency stabilisers as the UPS works in line-interactive mode. See also
Line interactive or VI UPS units
7. RCDs are not to be used to protect any of the UPS units listed. If, however due to legal
requirements an RCD must be used, then a D curve 420 mA RCD is to be installed. For
further details refer to
30
on the far right hand side of the search bar.
Earth leakage considerations using an RCD
Power Generator and UPS units
Chapter 4
), 5594-8KX
AC
), 5594-9KX
AC
"Required electrical earthing
Leak current information
in
Chapter
12.
in the section
Recommended upstream
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
), 5594-8PX
AC
), 5594-9PX
AC
systems".
in
Chapter
12.
in
Chapter
in
Chapter
12.
12.
protection.
Advertisement
Table of Contents
