We have been using this piece of test gear literally for years in a lab environment with no filtering on the AC.
Chas ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Kate Savo Sent: Friday, July 31, 2009 9:24 AM To: Gordon,Ian; [email protected] Subject: RE: [PSES] Surge testing Hi Ian, This question was posted on Interference Technology’s Testing forum. The following reply was from one of our readers. I am unsure of the reliability of the tester you mention, but Surge generators require large currents so any filter will need to be very substantial. If the suggestion from Schaffner is the mains quality then I would suggest the hire of a mains/line power monitor which is not just a mains voltmeter but a full monitor that monitors over-voltage spikes/undervoltage/frequency/dropouts. I use a Powersense product ex UK and an older BMI monitor which has such measurement facilities. Thanks, Kate Savo Interference Technology Forums Editor www.interferencetechnology.com 484-688-0300 ext 26 [email protected] From: Gordon,Ian [mailto:[email protected]] Sent: Wednesday, July 29, 2009 10:16 AM To: [email protected] Subject: [PSES] Surge testing All We have been using a Schaffner NSG 2050 surge tester to perform both mains and data line surges for a number of years. However the unit has at times mysteriously become damaged such that it no longer delivers surge current to the EUT even though you can hear the surge generator charging up and apparently discharging. It is suggested that the fault lies with the mains wiring at our facility and that by running the tester on a filtered supply the mains input to the generator may be subjected to over voltage. Has anyone else had similar problems with surge generators and do you normally run them on filtered mains supplies? Ian Gordon --- --- --- --- --- --- --- --- --- --- --- --- --- The contents of this email and any attachments are confidential and are provided solely for the use of the intended recipient(s). If you are not the intended recipient, you are hereby notified that any copying, disclosure, distribution, or use of this e-mail, its attachments or any information contained therein is unauthorized and strictly prohibited and you should please contact the sender immediately and delete this e-mail and any attachments from your system. No responsibility is accepted for any virus or defect that might arise from opening this e-mail or attachments, whether or not it has been checked by anti-virus software. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
