Long leads between VFD and motors
Long leads between VFD and motors
(OP)
Application: 300 ft + of cable run between a 460v VFD and a 1/8hp gearmotor. 2 of each gearmotor and drive powering a mobile device. Obviously, motor protection, such as a line reactor is required. But, do they have to be located next to the motor? Are there any new, smaller devices out there? The mobile device is small and real estate is at a premium.
Any suggestions?
Any suggestions?





RE: Long leads between VFD and motors
RE: Long leads between VFD and motors
Voltage drop probably wouldn't even be a problem for a motor that small (might want to double-check that though).
RE: Long leads between VFD and motors
RE: Long leads between VFD and motors
If you decide to use reactors, place them next to the drive. They protect the motor equally well anywhere in the motor leads but, next to the drive, the protect better against ground pulse currents.
RE: Long leads between VFD and motors
RE: Long leads between VFD and motors
As you will read sinus output filter are better than simple output reactors depending on the type (and carrier frequency) of the inverter.
The explanation is too long to give again here.
Hope it helps.
ICEMAN
RE: Long leads between VFD and motors
RE: Long leads between VFD and motors