Eaton 9155 8-15 kVA.pdf - 第13页
UPS 8 – 15 kV A, 230V 50/60 Hz output User ’ s Guide 1 022403 Revision D 13 5. Electr ical installation The customer has to supply the wiring to connect the UPS to the local power source. The electrical installation proc…
UPS 8 – 15 kVA, 230V 50/60 Hz output
User’s Guide
1022403
Revision D
12
External battery cabinet option
It’s recommended to install external battery cabinets next to the UPS unit. The external battery
can be placed on either side of the UPS unit. Check before the installation that the battery
voltage values in the type plate of the UPS and external battery cabinets are the same. The
cables are delivered with the external battery cabinet. See External Battery Cabinet (EBC)
installation procedure.
Warning!
The UPS contains high DC voltages. A qualified person must do the connections
between the UPS and the external battery cabinet(s). The battery cabinet is
connected electrically in parallel with the internal batteries of the UPS.
Figure 11. UPS and external battery cabinets.
Battery racks
External battery racks shall be sized to take the voltage drop in the cable into account. To obtain
support and help contact the local office or agent authorised by the manufacturer.
UPS 8 – 15 kVA, 230V 50/60 Hz output
User’s Guide
1022403
Revision D
13
5. Electrical installation
The customer has to supply the wiring to connect the UPS to the local power source. The
electrical installation procedure is described in the following text. The installation inspection and
initial start up of the UPS and extra battery cabinet shall be carried out by a qualified engineer
with UPS installation experience.
Warning!
Physical injury or death may follow, or damage may occur to the UPS, or the load
equipment if these instructions are ignored.
Figure 12. Location of the power terminals.
UPS 8 – 15 kVA, 230V 50/60 Hz output
User’s Guide
1022403
Revision D
14
The UPS unit has the following power connections:
• Three-phase (L1, L2, L3) and protective earth (PE) connection for the rectifier input
or
Single-phase (L1), Neutral (N) isolated connection point (bypass N is used in the rectifier)
and protective earth (PE) connection for the rectifier input.
• Single-phase (L1), Neutral (N) and protective earth (PE) connection for the bypass input
• Single-phase (L1), Neutral (N) and protective earth (PE) connection for the load output
• Plus (+), minus (-) and protective earth (PE) connection for the external batteries
Note!
The rectifier requires a Neutral to operate. It’s connected internally from the bypass
terminal to the rectifier, see wiring diagram.
Note!
Care needs to be taken to ensure that the input supply neutral reference is not
disconnected whilst the UPS is in service.
Figure 13. Power terminals found in UPS units.
Power cables and protective fuses
Always use copper cable types to fit terminals with approximately 1.5 Nm torque for different
load currents. The Cu cable sizing is based on multi-core cables laid in conduits/trunkings on the
wall or on the floor (installation procedure C), ambient temperature 25°C, PVC insulation, surface
temperature up to 70°C. Cables of several UPS can be installed in parallel to each other.
Standards SFS 6000-5-52 (2002) and IEC 60364-5-52 (2001-08) “Electrical installations of buildings”
with normal 1.7 x Neutral conductor rating for IT loads are used as a sizing guide. For any
other conditions, size the cables according to the local safety regulations regarding installation
environment, appropriate voltage and currents of the UPS.
Fuses are sized according to local safety regulations, appropriate input voltage and the rated current
of the UPS. Therefore, protect the input and bypass cables with gG (gL) fuses or B-C-D type of circuit
breakers against overload and short-circuit.