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Output Filter for Motor Drives
- Reduction of drive output voltage dv/dt
- Reduction of voltage stress at motor windings
- Protect AC motors from destructive effect of peak voltages
- Increase of motor service life
- Improvement of system reliability
Features and Benefits
Efficient reduction of high output voltage dv/dt from IGBT motor drives (as per IEC 60034-17/25)
Typical Applications
Motor drive applications with short to medium motor cable length
Technical Specifications
Max. operating voltage
3 ph 760 VAC
Rated currents
30 to 1200 A @ 40°C
Motor frequency
0...60 Hz (with derating up to 120 Hz)
Switching frequency
up to 16 kHz, depending on motor cable lenght and motor frequency -> refer graph on page 2
Typical dv/dt reduction
Factor 8 to 12
Max. peak voltage
≤1850 V (according EN 60034-25B)
Voltage drop
<3 V @ 50 Hz
Rated temperature
+40°C without derating up to 100°C
Operation temperature
-25°C to +100°C (25/100/21)
Transportation and storage temperature
-40°C to +100°C (25/100/21)
Overload capability
1.5 x rated current for 1 minute, once per hour
Protection category
IP 00
Flammability corresponding to
UL 94V-2
Design corresponding to
UL 61800-5-1, CSA 22.2 No.14, EN 61558-2-20
Typical electrical schematic
Approvals & Compliances
UL recognized up to 320 A