Input chokes can be used to reduce the supply line harmonic currents and voltage distortion generated by almost all inverter drives on the market today. Invertek Drives have selected a range of chokes matched to the Opti drive range to provide the best reduction in supply current harmonics whilst also providing enhanced protection for the Opti drive against transient voltages ('spikes') or other mains borne interference.
Input chokes are available for the complete range of Opti drive products, and are recommended for use in all installations and in particular:
- where the local mains supply quality may be poor or unknown
- where high current switching loads such as large DC drives or soft starts are operating
- where the mains supply impedance is low
- In remote areas prone to lightning strikes
- Reduce power supply harmonic currents
- Reduce the overall input current to the drive
- Provide additional protection against mains borne voltage spikes
OUTPUT CHOKE (LOAD REACTOR)
Use this as an output choke for long cable runs up to 150 meter cable run is the accumulated actual cable length, connected to inverter output terminals feeding single or multiple motors. This product can be used to reduce motor noise and will help to reduce voltage resonance at the motor, when it occur.
Output choke help to reduce this peak voltage, and increase the rise time, to reduce the stress applied to the motor insulation and prevent damages.
Output choke may be used to protect variable frequency drives and motors. Ac output choke install on the output side converter, the motor can be reduced noise and vibration when the inverter and motor-line longer, can inbuilt the surge wire
