What are the interference modes and processing methods of the inverter?

- Aug 15, 2018-

What are the interference modes of the inverter and how to deal with it in general?

Mode of transmission: What are the interference modes of the inverter (1) Radiation interference; What are the interference modes of the inverter? (2) Conducted interference

Anti-interference measures of the frequency converter: For the interference signal propagating by radiation, it is mainly weakened by wiring and shielding the radiation source and the disturbed line. For the interference signal propagating through the line, it is mainly processed by adding a filter, a reactor or a magnetic ring to the input and output side of the inverter. The specific methods and precautions are as follows:

    Anti-interference measures of the inverter (1) The signal line and the power line should be vertically crossed or slotted.


    Anti-interference measures of the inverter (2) Do not connect wires of different metals to each other.


Anti-interference measures of the inverter (3) The shielding tube (layer) should be grounded reliably and ensure continuous and reliable grounding over the entire length.


Anti-interference measures of the inverter (4) Twisted pair shielded cable should be used in the signal circuit.


Anti-interference measures of the inverter (5) The shield grounding point should be far away from the inverter as far as possible and separate from the inverter grounding point.


Anti-interference measures of the inverter (6) The magnetic ring can be used on the input power line and output line of the inverter. The specific method is as follows: the input lines are wound together in the same direction for 4 turns, and the output line can be wound 3 times in the same direction. Pay attention when winding, try to close the magnetic ring to the inverter.


Anti-interference measures of the inverter (7) Generally, shielding and other anti-interference measures can be taken for the equipment of the interfered device.


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