电缆选型计算表

Contactor 3TF40-45 can be replaced by 3TF30-35.
}
}
A
B
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
400V, 50Hz
3807 5030 3530 5112-0BC 50/1A 2.5VA 4022-0XP0
3812 5030 3530 5112-0BC 50/1A 2.5VA 4122-0XP0
1.5 2.5
2.5 20
2.5
4
2.5 32
2.5
6 35
4 3814 5030 3530
4
10 3820 50 5030 3530
6
6
16 63
10
10 25 80
16
16 25 3824 80 5230 3530
16
16
50
35
25 50
50 125
35 70
50
35 95
70 3140 200 5530 4290
14)
13)
9) 10-12)
7) 8)
4) 5) 6)
3)
1) 2)
Direct-on-Line Starter and Reversing Duty
Not applicable for 500V Inherently earth-fault and short-circult proof installation to IEC 60439-1/EN 60439-1 (VDE 0660 part 500) PVCbunched at an average ambient conductor temperainsulated (6 load-carrying cores) ture of 55°C to IEC 60439-1/EN 60439-1 copper bunched (three core) (VDE 0660 part 500) or IEC 60364-5-523/HD conductors spaced single cores 384/DIN VDE 0298-4 According to IEC 947-4 (DIN, VDE0660, Part102), use NH fuse, fuse disconnector for short circuit protection. Pin-winding increases the primary-current of the current transformer Terminal size for maximum conductor cross-sections given, terminals for smaller cross sections see “Siemens Low Voltage Controlgear, Switchgear and Systems Catalog” . If terminal data is missing use auxiliary contact rail. If no terminal-blocks is selected, use bus-bar connection. Reduction factor 0.8/0.6: 0.8 applies e.g to 40°C, slight cable bunching: 0.6 applies e.g to 40°C, extensive cable bunching to HD 603S1/DIN VDE 0276-603. In addition, 0.8 approximately corresponds to type of installation B2 without bunching or to C with slight bunching: 0.6 approximately corresponds to type of installation B2 with slight or to C with medium bunching to IEC 60364-5-523/HD384/DIN VDE 0298-4. The following normal maximum series impedances to the next circuit-breaker have been taken into account: Protection Trade10) Small industry 11) Heavy industry 12) ≤ 63A 250mΩ 200mΩ 100mΩ ≤ 160A 100mΩ 90mΩ 70mΩ ≤ 400A 80mΩ 50mΩ 40mΩ > 400A 50mΩ 40mΩ 30mΩ For other percentage voltage drop, multiply lengths accordingly ∆U typically 4%. Maximum Permissible distance (forward and retum line) is based on shortest distance from 10)-12) Squirrel-cage motor, 4-pole, 1500 rpm, 50Hz or 1800 rpm, 60Hz. For technical data see “Three Phase Low-Voltage Motors/Squirrel-Cage Motors” catalogue
Star-Delta Starter
1) 2) 3) 4) 5) 6) 7) 8) 9) 10)
}
}
11)
12-14)
15) 16)
பைடு நூலகம்
Not applicable for 500V Inherently earth-fault and short-circult proof installation to IEC 60439-1/EN 60439-1 (VDE 0660 part 500) PVCbunched at an average ambient conductor temperainsulated (6 load-carrying cores) ture of 50°C to IEC 60439-1/EN 60439-1 copper bunched (three core) (VDE 0660 part 500) or IEC 60364-5-523/HD conductors spaced single cores 384/DIN VDE 0298-4 According to IEC 947-4 (DIN, VDE0660, Part102), use NH fuse, fuse disconnector for short circuit protection. Pin-winding increases the primary-current of the current transformer Maximum changeover time 10S, use timerelay 3RP 1574-1 NP30 1 Set the rated operating current of motor multiplied by 3 Terminal size for maximum conductor cross-sections given, terminals for smaller cross sections see “Siemens Low Voltage Controlgear, Switchgear and Systems Catalog” . If terminal data is missing use auxiliary contact rail. Reduction factor 0.8/0.6: 0.8 applies e.g to 40°C, slight cable bunching: 0.6 applies e.g to 40°C, extensive cable bunching to HD 603S1/DIN VDE 0276-603. In addition, 0.8 approximately corresponds to type of installation B2 without bunching or to C with slight bunching: 0.6 approximately corresponds to type of installation B2 with slight or to C with medium bunching to IEC 60364-5-523/HD384/DIN VDE 0298-4. The following normal maximum series impedances to the next circuit fuse have been taken into account: Heavy industry 14) Small industry 13) Trade12) Protection 100mΩ 200mΩ 250mΩ ≤ 63A 70mΩ 90mΩ 100mΩ ≤ 160A 40mΩ 50mΩ 80mΩ ≤ 400A 30mΩ 40mΩ 50mΩ > 400A For other percentage voltage drop, multiply lengths accordingly ∆U typically 4%. Maximum Permissible distance (forward and return line) is based on shortest distance from 12)-14) Squirrel-cage motor, 4 pole, 1500 rpm, 50Hz or 1800 rpm, 60Hz. For technical data see “Three Phase Low-Voltage Motors/Squirrel-Cage Motors” catalogue Contactor 3TF40-45 can be replaced by 3TF30-35.