Grid Specifications; Motor Connection Data - Hitachi S1 Series Basic Manual

S1 series standard inverter
10.2.2.3 Derating due to carrier frequency
The power of S1 series inverters varies according to carrier frequencies. The rated power of an
inverter is defined based on the carrier frequency set in factory. If the carrier frequency exceeds the
factory setting, the power of the inverter is derated by 10% for each increased 1 kHz.

10.3 Grid specifications

Grid voltage
Short-circuit capacity
Frequency

10.4 Motor connection data

Motor type
Voltage
Short-circuit protection
Frequency
Frequency resolution
Current
Power limit
Field-weakening point
Carrier frequency
Derating coefficient (%)
100
80
60
40
20
0
1000 2000
AC 1PH 220V (-15%)–240V (+10%)
AC 3PH 380V (-15%)–440V (+10%)
According to the definition of IEC 60439-1, the 0.4–15kW inverters
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 18.5–110kW inverters 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 132–400kW inverters 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
0–U1 (rated voltage of the motor), 3PH symmetrical, Umax (rated
voltage of the inverter) 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 the rated current.
1.5 times of the rated power of the motor
10–400 Hz
4, 8, 12, or 15 kHz
3000 4000
-201-
Altitude (m)