Delta Electronics AC Drive VFD-F Series Especificaciones descargar pdf (Pagina 154)

Appendix B Accessories|

Revision May 2008, ME14, SW V3.04 B-9

Application 2 Question

Silicon rectifier and AC motor drive

are connected to the same power.

Switching spikes will be generated when the silicon

rectifier switches on/off. These spikes may damage the

mains circuit.

Correct wiring

power

reactor

AC motor drive

motor

Silicon Controlled Rectifier

Application 3 Question

Used to improve the input power factor, to

reduce harmonics and provide protection

from AC line disturbances (surges, switching

spikes, short interruptions, etc.). The 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

≤

10m.

When the mains power capacity is too large,

line impedance will be small and the charge

current will be too high. This may damage AC

motor drive due to higher rectifier

temperature.

Correct wiring

large-capacity

power

reactor

small-capacity

AC motor drive

motor

1 2 ... 149 150 151 152 153 154 155 156 157 158 159 ... 172 173

Sin comentarios

Delta Electronics AC Drive VFD-F Series Especificaciones Pagina 154