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What Do You Expect The Effect Of Using Pigtails To Terminate Screened Cables Is?


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#1 marke

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Posted 08 July 2011 - 11:55 PM

Hi

It is well publicised that the use of a screened cable between the output of a VFD and the motor is important in order to minimise the EMC voltages.

Most installations that I see, use pigtails to connect the end of the screen to ground or chassis.

The use of a pigtail has a negative effect on the effectiveness of the screen in reducing EMC, but how much is this??


Best regards,
Mark.

#2 marke

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Posted 23 July 2011 - 11:54 PM

Have a look at the results of some tests using pigtails at:
http://www.vfd-emc.c...d-emc-tests.php

Best regards,
Mark.




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