Carrier CDII-184R1-0CTR4 Installation & Operation Manual page 49

9.6.5 DRIVE ASSEMBLY ELECTRICAL CONNECTION
Inverter Drive
Dr
ive is a type of controller that drives a compressor motor by varying the
frequency and voltage supplied to the compressor motor (Varying the speed
of the motor). Drive is fitted in between the electrical supply and the
compressor. Power from the main electrical supply goes into the drive. The
drive then regulates the power which is then fed to the Compressor. Inside
the drive, the input power is run through a rectifier that converts the incoming
AC power to DC power.
EMI Filter
An
EMI filter, or electromagnetic interference filter, is an electronic passive
device which is used in order to suppress conducted interference that is
present on a signal or power line. EMI filters can be used to suppress
interference that is generated by the device or by other equipment in
order make a device more immune to electromagnetic interference signals
present in the environment. Most EMI filters consist of components that
suppress differential and common mode interference.
Reactor
Improve the input current wave resulted by capacitor harmonics. Reduce and
prevent the rectification bridge being damaged and capacitor being
overheating due to surging current. Improve power factor, reduce DC
busbar AC pulse. Restrict the transient change of system voltage.
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