SD1 Series Inverters Optional Peripheral Accessories
-152-
Breaker
Device for electric shock prevention and protection against
short-to-
ground that may cause current leakage and fire.
Select residual-current circuit
breakers (RCCBs) that are
applicable to inverters and can restrict high-
order
harmonics, and of which the rated sensitive current for one
inverter is larger than 30 mA.
Input reactor
Accessories used to improve the current adjustment
coefficient on the input side of the inverter, and thus
restrict high-order harmonic currents.
Input filter
Accessory that restricts the electromagnetic interference
generated by the inverter
and transmitted to the public grid
through the power cable. Try to install the input filter near
the input terminal side of the inverter.
Braking resistors
Accessories used to consume the regenerative energy of
the motor to reduce the DEC time.
The inverter models need only to be configured with
Output filter
Accessory used to restrict interference generated in the
wiring area on the output side of the inverter. Try to install
the output filter near the output terminal side of the
Output reactor
Accessory used to lengthen the valid transmission
distance of the inverter
, which effectively restrict the
transient high voltage generated during the switch-
on and
switch-off of the IGBT module of the inverter.
Membrane of heat
releasing holes at
the side
Accessory applied in severe environment scenarios for
improving protective effect.
The inverter
can be derated by 10% through using the
membrane.
C.2 Power Supply
Ensure that the voltage class of the inverter is consistent with that of the
grid.
C.3 Cables
C.3.1 power cables
The sizes of the input power cable, and motor cables must meet the local regulation.
Note: If the conductivity of the shielding layer of the motor cables cannot meet the
requirements, separate PE conductors must be used.
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