Appendix B Accessories|VFD-B Series

Correct wiring

power

silicon rectifier

reactor

DC

reactor

AC motor drive

motor

Application 3

Question

Used to improve the input power factor, to When power capacity is too large, line

reduce harmonics and provide protection from impedance will be small and the charge

AC line disturbances. (surges, switching

current will be too large. That may damage

spikes, short interruptions, etc.). AC line

AC motor drive due to higher rectifier

reactor should be installed when the power temperature.

supply capacity is 500kVA or more and

exceeds 6 times the inverter capacity, or the

mains wiring distance ≤ 10m.

Correct wiring

large-capacity

power

reactor

small-capacity

AC motor drive

motor

B-36

Revision July 2008, BE16, SW V4.08 & V5.00