Kruger Ecowatt K320 Series Operation Manual page 344

Ecowatt Drive K320 series
®
B.2.2.2. Derating due to altitude
When the altitude of the site where the VFD is installed is lower than 1000 m, the VFD can run
at the rated power. When the altitude exceeds 1000m, derate by 1% for every increase of 100m.
When the altitude exceeds 3000m, consult the local Kruger dealer or local Kruger office for
details.
B.2.2.3. Derating due to carrier frequency
The power of the VFD varies according to carrier frequencies. The VFD rated power is defined
based on the carrier frequency set in factory. If the carrier frequency exceeds the factory
setting, the power of the VFD is derated by 10% for each increased 1 kHz.
B.3 Grid specifications
Grid voltage
Short-circuit
capacity
Frequency
B.4 Motor connection data
Motor type
Voltage
Short-circuit
protection
Frequency
Frequency
resolution
Current
Power limit
Field-weakening
point
Carrier frequency 4, 8, 12, or 15 kHz
AC 3PH 380V(-15%)–440V(+10%)
According to the definition of IEC 60439-1, the 2R2P–018P VFD models
are suitable for the use on the grid with the maximum expected
short-circuit current no more than 5kA at the maximum rated voltage;
the 022P–011P VFD models are suitable for the use on the grid with the
maximum expected short-circuit current no more than 22kA at the
maximum rated voltage; the 132P–500P VFD models are suitable for the
use on the grid with maximum expected short-circuit current no more
than 100kA at the maximum rated voltage.
50/60 Hz±5%, with a maximum change rate of 20%/s
Asynchronous induction motor or permanent magnetic synchronous
motor
0–U1 (rated voltage of the motor), 3PH symmetrical, Umax (rated
voltage of the VFD) at the field-weakening point
The short-circuit protection for the motor output meets the
requirements of IEC 61800-5-1.
0–400 Hz
0.01 Hz
See 3.6 Product ratings.
1.5 times of the rated power of the motor
10–400 Hz
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Technical data