ABB ACS800 Series Hardware Manual page 115

ACS800-01 size
Copper
Three-phase supply voltage 525 V, 550 V, 575 V, 600 V, 660 V or 690 V
-0050-7 3×16 Cu
-0060-7 3×16 Cu
-0070-7 3×25 Cu
-0100-7 3×35 Cu
-0120-7 3×50 Cu
-0145-7 3×70 Cu
-0175-7 3×95 Cu
-0205-7 3×95 Cu
Note 1: The supply transformer minimum power in kVA is calculated with a z
Note 2: This table is not intended for transformer selection - that must be done separately.
The following parameters may effect on the correct operation of the protection:
• cable length, i.e. the longer the cable the weaker the fuse protection, as the long
cable limits the fault current
• cable size, i.e. the smaller the cable the weaker the fuse protection, as the small
cable size limits the fault current
• transformer size, i.e the smaller the transformer the weaker the fuse protection,
as the small transformer limits the fault current
• transformer impedance, i.e. the higher the z
high impedance limits the fault current.
The protection can be improved by installing a larger supply transformer and/or
bigger cables, and in most cases by selecting aR fuses instead of gG fuses.
Selection of smaller fuses improves the protection, but may also affect the fuse life
time and lead to unnecessary operation of the fuses.
In case of any uncertainty regarding the drive protection, please contact your local
ABB.
Cable type
Aluminium Max. cable length with gG fuses
10 m
3×25 Al
3×25 Al
3×50 Al
3×50 Al
3×70 Al
3×95 Al
3×120 Al
3×150 Al
Supply transformer minimum apparent power S
50 m 100 m
65 67
70 70
95 95
130 140 150
180 180 190
220 220 240
260 260 280
340 360 390
k
k
Max. cable length with aR fuses
10 m 100 m
70 63 63
70 70 70
99 95 95
110 110
140 140
160 160
200 200
230 230
value of 6% and frequency 50 Hz.
the weaker the fuse protection as
115
(kVA)
N
200 m
63
70
95
110
140
160
200
230
Technical data