Output filter series for ac motor protection
Schaffner EMC’s FN5060HV is designed to protect ac motors up to 690/600 Vac from destructive effects of peak voltages and inrush amps. It protects motors and adjacent equipment without capacitors or resistors and reduce high output dv/dt from insulated-gate bipolar transistor (IGBT) motor drives and eliminate over-voltages caused by line reflections on motor cables. These filters are ideal for loads up to 690Vac, 30 to 1200A and motors up to 60Hz. They are also well suited for motor drives with short to medium cable lengths, applications with frequent braking, danger of flash-over voltage and applications where motors are running at high temperature. They are designed for applications such as chemical food and pharmaceutical processing, cement, metalworking, oil and gas, and mining. Applications include servo or torque motors, submersible or irrigation pumps, HVAC equipment including pumps, fans and compressors, elevators, hoists and cranes, process equipment, and applications where sine wave filters are not suited. Compact, resistor-less design saves floor mounting space and installs easily. With minimum power loss and low voltage drop, they maximize system efficiency.
– Edited by CFE Media. See more Control Engineering motor and drive products.