Technical data
117
Supply cable:
•
length = 170 m
•
resistance/length = 0.112 ohm/km
•
reactance/length = 0.0273 ohm/km.
The calculated short-circuit current 9.7 kA is higher than the minimum short-circuit current of the drive
gG fuse type OFAF3H500 (8280 A). -> The 500 V gG fuse (ABB Control OFAF3H500) can be used.
Notes concerning the fuse tables
Note 1:
See also section
Thermal overload and short-circuit protection
on page
46
. For UL recognized
fuses, see section
NEMA data
on page
123
.
Note 2: In multicable installations, install only one fuse per phase (not one fuse per conductor).
Note 3:
Larger fuses than the recommended ones must not be used.
Note 4:
Fuses from other manufacturers can be used if they meet the ratings and the melting curve of
the fuse does not exceed the melting curve of the fuse mentioned in the table.
·
(430 V)
2
3000 kVA
= 4.438 mohm
Z
k
= z
k
·
U
N
2
S
N
= 0.072
m
·
0.112
ohm
km
= 19.04 mohm
R
c
= 170
m
·
0.0273
ohm
km
= 4.641 mohm
X
c
= 170
=
410 V
2
·
(19.04 mohm)
2
+ (4.438 mohm + 4.641 mohm)
2
I
k2-ph
= 9.7 kA
Summary of Contents for ACS800-U7
Page 1: ...ACS800 Hardware Manual ACS800 07 Drives 45 to 560 kW ACS800 U7 Drives 50 to 600 hp ...
Page 4: ......
Page 28: ...Operation principle and hardware description 28 ...
Page 51: ...Planning the electrical installation 51 ...
Page 60: ...Planning the electrical installation 60 ...
Page 76: ...Electrical installation 76 ...
Page 84: ...Motor control and I O board RMIO 84 ...
Page 112: ...Maintenance 112 ...
Page 138: ...Dimensional drawings 138 Frame sizes R5 and R6 64778340_1 5 K ...
Page 139: ...Dimensional drawings 139 Frame sizes R7 and R8 68749930_1 7 C ...
Page 140: ...Dimensional drawings 140 IP54 and IP54R units of frame sizes R7 and R8 68749930_6 6 C ...
Page 148: ...3AFE64702165 Rev H EN 2012 09 19 Contact us www abb com drives www abb com drivespartners ...