4.1.6 Notes
The following points are for general guidance only. If there are relevant local regulations, the local regulations shall prevail.
1.
The cable size of the protective earth cable shall be selected according to the AC power failure level, cable
length, and protection type. The grounding wire connection must use the shortest connection route.
2.
For the cables with large current, parallel connection of small cables can be adopted to facilitate the
installation.
3.
When selecting the battery cable size, the current value in Table 4.1 on the previous page shall be referred to,
and a maximum voltage drop of 4 Vdc is allowed.
4. Do not form coils, so as to minimize the formation of EMI.
4.1.7 Power Cable Connecting Terminal
The rectifier input, bypass input, output, and battery power cables are connected to the corresponding terminals shown in
Figure 4.2 on page 43.
4.1.8 Protection Ground
The protective earth cable is reliably connected to the PE input terminal (see Figure 4.2 on page 43) via the fixing bolt. All
the cabinets and cable troughs shall be grounded according to the local regulations. The grounding wires shall be tied up
reliably to prevent the loosening of the grounding wire tightening screws when the grounding wires are pulled.
W A R N IN G ! F ailu re to gro u n d as requ ired m ay cau se EM I, electric sh o ck , o r fire risk .
4.1.9 External Protective Device
To ensure the safety, it is necessary to install external circuit breaker for the input and battery of the UPS. Because of the
difference of the specific installations, this section only provides general practical information for the installation engineer.
The qualified installation engineer should have the knowledge of the local wiring regulations on the equipment to be
installed.
Input power supply of rectifier and bypass
1.
Input overcurrent and short circuit protection
Install suitable protective devices in the distribution line of the incoming mains supply. The protective devices
should provide functions such as the overcurrent protection, short circuit protection, isolation protection, and
tripping upon backfeed. When selecting the protective devices, consider the power cable current-carrying
capacity, system overload capacity (see Table 12.6 on page 174 and Table 12.7 on page 175) and the short
circuit capability of the upstream power distribution.
2.
Split bypass configuration
If the UPS adopts split bypass configuration, independent protective device shall be installed respectively on
the rectifier input and bypass input distribution lines.
N O T E: T h e rectifier in pu t an d bypass in pu t m u st u se th e sam e n eu tral lin e.
N O T E: F o r IT grid system , 4-po le pro tective co m po n en ts m u st be in stalled fo r th e UP S extern al in pu t
po wer distribu tio n .
4 Electrical Installation
41
Vertiv™ Liebert® APM Plus User Manual
Summary of Contents for APM Plus 0500kMK16FN02000
Page 1: ...Vertiv Liebert APM Plus User Manual 50 500 kVA UPS...
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Page 34: ...2 Overview 26 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 45: ...Four switches 500 kVA 3 Mechanical Installation 37 Vertiv Liebert APM Plus User Manual...
Page 76: ...Figure 5 11 Customize the display 5 Touch Screen 68 Vertiv Liebert APM Plus User Manual...
Page 86: ...Figure 5 20 Enable module redundancy 5 Touch Screen 78 Vertiv Liebert APM Plus User Manual...
Page 91: ...Figure 5 24 Status Gauge setting options 5 Touch Screen 83 Vertiv Liebert APM Plus User Manual...
Page 92: ...5 Touch Screen 84 Vertiv Liebert APM Plus User Manual...
Page 94: ...5 Touch Screen 86 Vertiv Liebert APM Plus User Manual...
Page 95: ...Figure 5 26 Unit status Bypass details 5 Touch Screen 87 Vertiv Liebert APM Plus User Manual...
Page 96: ...Figure 5 27 Unit status Battery details 5 Touch Screen 88 Vertiv Liebert APM Plus User Manual...
Page 97: ...Figure 5 28 Unit status Load details 5 Touch Screen 89 Vertiv Liebert APM Plus User Manual...
Page 100: ...5 Touch Screen 92 Vertiv Liebert APM Plus User Manual...
Page 112: ...5 Touch Screen 104 This page intentionally left blank Vertiv Liebert APM Plus User Manual...
Page 184: ...12 Specifications 176 This page intentionally left blank Vertiv Liebert APM Plus User Manual...