Protection circuit and method for an electromagnetic interferenc

Details Protection circuit and method for an electromagnetic interferenc Protection circuit and method for an electromagnetic interferenc

1997-03-06

1999-04-13

Gaffin, Jeffrey

Electrical transmission or interconnection systems

With harmonic filter or neutralizer

307 17, 361 85, 323361, H01F 3012

Patent

active

058941746

ABSTRACT:
The present invention relates to protection circuit and method for the EMI/RFI suppression system (2) of such a five-conductor electrical system in which the neutral conductor (N) is provided with a bandstop-type filter circuit (2) for the suppression of a harmonic interference current component. According to the invention, on the neutral conductor (N) is placed a current transformer (CT) having over its secondary a resistive branch (R.sub.1), and in parallel therewith, a filter branch (5) comprising a bandpass filter (LC) tuned to the fundamental frequency of said neutral-conductor filter circuit (2) and said filter branch (5) having in series with said bandpass filter branch (LC) a switch element (4) suitable for short-circuiting said neutral-conductor filter circuit (2) when current in said filter branch (5) exceeds a preset upper limit level.

REFERENCES:
patent: 5383084 (1995-01-01), Gershen et al.

Affiliated with

Also associated with

Rating

Protection circuit and method for an electromagnetic interferenc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protection circuit and method for an electromagnetic interferenc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection circuit and method for an electromagnetic interferenc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-224494