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146 Technical data
Electrical power network specification
Voltage ( U
)
1
Network type
Frequency
Imbalance
Short-circuit withstand
strength (IEC/EN 61439-
1)
Short-circuit withstand
strength for supply unit Rated short-time withstand current (Icw): 100 kA/1 s
with 100 kA input unit
(option +F274)
(IEC/EN 61439-1)
Short-circuit current pro-
tection (UL 508A, CSA
C22.2 No. 14-13)
Fundamental power
factor (cos phi
)
1
Harmonic distortion
690 V units:
IEC:
525...690 V AC 3-phase ± 10%
In corner-grounded TN systems: 525...600 V AC
UL/CSA:
525...600 V AC
This is indicated in the type designation label as typical input voltage levels
(3~ 525/600/690 V AC).
TN (grounded) and IT (ungrounded) systems
50/60 Hz, variation ± 5% of nominal frequency
Max. ± 3% of nominal phase-to-phase input voltage
Supply units with ABB-defined main breaker and fuses:
Frame R7i module(s): Rated conditional short-circuit current of LCL+ISU ( I
is 50 kA with module's AC fuses given in this manual.
Frame R8i module(s): Rated conditional short-circuit current of LCL+ISU ( I
is 65 kA with module's AC fuses given in this manual.
All other configurations:
Rated peak withstand current ( I
Rated short-time withstand current ( I
Rated peak withstand current (Ipk): 220 kA
Note: Options +F259 and +F274 are mutually exclusive for some drive types.
Consult ABB for availability.
The drive is suitable for use on a circuit capable of delivering not more than
100,000 rms symmetrical amperes at 600 V maximum when the input cable
is protected with class T fuses.
0.99
Harmonics are below the limits defined in IEEE519.
R
sc
20
100
1) Other loads may influence the THD value.
THD = Total Harmonic Distortion (THD). The voltage THD depends on the
short-circuit ratio ( R
). The spectrum of the distortion also contains interhar-
sc
monics.
R
= I
/ I
sc
sc
N
I
= short-circuit current at point of common coupling (PCC)
sc
I
= supply unit nominal current
N
th
I
= n
harmonic current component
n
): 105 kA
pk
): 50 kA/1 s
cw
THD Voltage [%]
3
0.8
)
cc
)
cc
THD Current [%]
1)
2.5
2.5 (4.0 with types
1)
-0390A...-0520A-7)
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