Selecting the power cables
■
General rules
Select the input power and motor cables according to local regulations. Obey these rules:
•
Select a cable capable of carrying the drive nominal current.
•
Select a cable rated for at least 70 °C maximum permissible temperature of conductor
in continuous use.
•
The inductance and impedance of the PE conductor/cable (grounding wire) must be
rated according to permissible touch voltage appearing under fault conditions (so that
the fault point voltage will not rise excessively when a ground fault occurs).
•
600 V AC cable is accepted for up to 500 V AC. 750 V AC cable is accepted for up to
600 V AC. For 690 V AC rated equipment, the rated voltage between the conductors
of the cable should be at least 1 kV.
•
With US installations, consider the additional US requirements.
Use symmetrical shielded motor cable. Ground motor cable shields 360° at both ends. Keep
the motor cable and its PE pigtail (twisted shield) as short as possible to reduce
high-frequency electromagnetic emissions.
Note:
When continuous metal conduit is employed, shielded cable is not required. The
conduit must have bonding at both ends.
We recommend symmetrical shielded cable for the input cabling, but a four-conductor
system is also possible.
Compared to a four-conductor system, the use of symmetrical shielded cable reduces
electromagnetic emission of the whole drive system as well as the stress on motor insulation,
bearing currents and wear.
The protective conductor must always have an adequate conductivity. Unless local wiring
regulations state otherwise, the cross-sectional area of the protective conductor must agree
with the conditions that require automatic disconnection of the supply required in 411.3.2.
of IEC 60364-4-41:2005 and be capable of withstanding the prospective fault current during
the disconnection time of the protective device. The cross-sectional area of the protective
conductor can either be selected from the table below or calculated according to 543.1 of
IEC 60364-5-54.
This table shows the minimum cross-sectional area related to the phase conductor size
according to IEC 61800-5-1 when the phase conductor and the protective conductor are
made of the same metal. If this is not so, the cross-sectional area of the protective earthing
conductor shall be determined in a manner which produces a conductance equivalent to
that which results from the application of this table.
Minimum cross-sectional area of the corresponding
protective conductor
Sp (mm
2
)
Cross-sectional area of the phase conductors
S (mm
2
)
S
S ≤ 16
16
16 < S ≤ 35
S/2
35 < S
■
Typical power cable sizes
See the technical data in the appropriate hardware manual for the typical power cable sizes
for each drive or unit type.
82 Guidelines for planning the electrical installation
Summary of Contents for ACS880-07
Page 1: ...ABB industrial drives Hardware manual ACS880 07 drives 560 to 2800 kW ...
Page 2: ......
Page 4: ......
Page 22: ...22 ...
Page 28: ...28 ...
Page 94: ...94 ...
Page 112: ...Electrical installation 109 5 6 4 3 112 Electrical installation ...
Page 113: ...110 Electrical installation 7 8 8 Electrical installation 113 ...
Page 114: ...Electrical installation 111 9 10 114 Electrical installation ...
Page 116: ...Electrical installation 113 4 5 3 6 7 116 Electrical installation ...
Page 118: ...2 11 b PE 10 7 5 6 8 a 360 grounding detail 118 Electrical installation ...
Page 128: ...128 ...
Page 146: ...146 ...
Page 148: ...148 ...
Page 159: ...12 Install and tighten the two M4 12 T20 screws 10 11 12 Maintenance 159 ...
Page 162: ...6 6a 6a 6b 7a 7b 7 8 8a 8b 162 Maintenance ...
Page 166: ...166 Maintenance 6 6 7 8 7 166 Maintenance ...
Page 173: ...6 Reinstall the cover removed earlier and close the cubicle door 4 4 D7T D8T Maintenance 173 ...
Page 213: ... Dimension drawing examples Frame 2 D7T 2 R8i 12 pulse A004 Dimensions 213 ...
Page 214: ...Frame 1 D8T 2 R8i IP22 214 Dimensions ...
Page 215: ...Frame 1 D8T 2 R8i IP54 B055 Dimensions 215 ...
Page 216: ...Frame 1 D8T 2 R8i with common motor terminal cubicle H359 1 2 216 Dimensions ...
Page 217: ...Frame 1 D8T 2 R8i with common motor terminal cubicle H359 2 2 Dimensions 217 ...
Page 218: ...Frame 1 D8T 2 R8i with brake choppers and resistors D150 D151 1 2 218 Dimensions ...
Page 219: ...Frame 1 D8T 2 R8i with brake choppers and resistors D150 D151 2 2 Dimensions 219 ...
Page 220: ...Frame 1 D8T 2 R8i with sine output filter E206 1 2 220 Dimensions ...
Page 221: ...Frame 1 D8T 2 R8i with sine output filter E206 2 2 Dimensions 221 ...
Page 222: ...Frame 2 D8T 2 R8i 12 pulse A004 with grounding switch F259 222 Dimensions ...
Page 223: ...Frame 2 D8T 3 R8i 1 2 Dimensions 223 ...
Page 224: ...Frame 2 D8T 3 R8i 2 2 224 Dimensions ...
Page 225: ...Frame 2 D8T 3 R8i with common motor terminal cubicle H359 1 2 Dimensions 225 ...
Page 226: ...Frame 2 D8T 3 R8i with common motor terminal cubicle H359 2 2 226 Dimensions ...
Page 227: ...Frame 2 D8T 3 R8i with top entry top exit H351 H353 1 2 Dimensions 227 ...
Page 228: ...Frame 2 D8T 3 R8i with top entry top exit 2 2 228 Dimensions ...
Page 229: ...Frame 3 D8T 4 R8i 1 2 Dimensions 229 ...
Page 230: ...Frame 3 D8T 4 R8i 2 2 230 Dimensions ...
Page 231: ...Frame 3 D8T 4 R8i with common motor terminal cubicle H359 1 2 Dimensions 231 ...
Page 232: ...Frame 3 D8T 4 R8i with common motor terminal cubicle H359 2 2 232 Dimensions ...
Page 233: ...Frame 3 D8T 4 R8i with top entry top exit H351 H353 1 2 Dimensions 233 ...
Page 234: ...Frame 3 D8T 4 R8i with top entry top exit H351 H353 2 2 234 Dimensions ...
Page 235: ...Frame 4 D8T 5 R8i 6 pulse with top entry exit UL Listed C129 1 2 Dimensions 235 ...
Page 236: ...Frame 4 D8T 5 R8i 6 pulse with top entry exit UL Listed C129 2 2 236 Dimensions ...
Page 237: ... Dimensions of empty cubicles options C199 C200 C201 IP22 IP42 Dimensions 237 ...
Page 238: ...IP54 238 Dimensions ...
Page 243: ... 1000 mm UL CSA top cable entry Dimensions 243 ...
Page 244: ... 1000 mm UL CSA bottom cable entry 244 Dimensions ...
Page 264: ...264 ...
Page 272: ... 272 ...