It's likely a term used to describe the mechanical vibrations that you hear in a magnetic circuit breaker as the current it is carrying increases past its trip current. I've heard this noise, but not the term "Hertz vibration". However the name makes sense - the vibration would be at line frequency.
Jim Eichner, P.Eng. Group Leader, Engineering Services Xantrex Technology Inc. Mobile Markets phone: (604) 422-2546 fax: (604) 420-1591 e-mail: [email protected] web: www.xantrex.com -----Original Message----- From: Electrical-Safety - Bill Addiss [mailto:[email protected]] Sent: Monday, August 13, 2001 5:09 PM To: [email protected] Subject: Hertz Vibration? Hello! Has anyone heard the term "Hertz Vibration" ? A friend had heard the term in a conversation somehow related to Circuit Breakers. I'm trying to help find the pieces to his puzzle. If this is a valid term, is there any info/papers on it We could read? Thanks in advance for any help Bill Addiss Electrical Safety Forum http://www.Electrical-Safety.com ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall," ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"

