Chapter3 Mechanical and Electrical Installation
SVF-G7 Series Frequency Inverter Operation Manual
33
Table 3-2 Instructions for SVF-G7 series VFD external electrical
components
Name
Install
Location
Function
Air
switch
MCCB
Front
of
input
circuits
When downstream devices is over current,
breaking the power.
Contactor
Between the
air
switch
and
the
input
of
frequency
inverter
The frequency inverter power on and off, should
avoid frequently operating by the contactor or
doing direct start-up operation.
AC
Reactor
Input side of
the
frequency
inverter
1) Improve the input power factor of the drive
2) Suppress the high-order harmonics of the
input side; prevent the other equipment damage
for the voltage waveform distortion.
Input
EMC
Filter
Input side of
the
frequency
inverter
1) Reduce the frequency inverter external
conduction and radiation disturbance.
2) Reduce interference of conduction flowing
from the power to the drive, and improve the
anti-interference ability of the drive.
DC
Reactor
B)
and P of the
main circuit
terminals
1)improve the input power factor of the drive
2) Improve efficiency and thermal stability of
the whole frequency inverter.
3) Suppress the high-order harmonics of the
input side; reduce external conduction and
radiation disturbance.
Содержание SVF-G7 Series
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