Delta Electronics Elevator Drive VFD-VL User Manual page 211

Appendix B Accessories|
Correct wiring
power
Used to improve the input power factor, to
reduce harmonics and provide protection
from AC line disturbances. (surges,
switching spikes, short interruptions, etc.).
AC line reactor should be installed when the
power supply capacity is 500kVA or more
and exceeds 6 times the inverter capacity,
or the mains wiring distance
Correct wiring
large-capacity
B-14
Application 3
≤
10m.
power
silicon rectifier
reactor
AC motor drive
reactor
When power capacity is too large, line
impedance will be small and the charge
current will be too large. That may damage
AC motor drive due to higher rectifier
temperature.
small-capacity
AC motor drive
reactor
DC
motor
Question
motor
Revision Nov. 2008, VLE1, SW V1.03