ECN Forum Forums Safety Discussion and News Occupational Safety Discussion True Phase Rotation Tests

 
Don, I’m stumped. I can’t find an online manual for the Duspol S {or Digital} that details the feature. www.benning.de/alt/englisch/pruef1.htm

The Knopp K3 “pillbox motor” has supposedly been around since the 1920s. It will operate with less torque on a ‘network’ connection [2ø+N] compared to 3ø. www.knoppinc.com/Specifications/Leaflet%20No%20427%20K-3%20Instructions%20Rev%20E. pdf




[This message has been edited by Bjarney (edited 08-18-2004).]

Guys,
Sorry about that little spat with the computer above.
I was trying to type the URL of a PDF file that gives a catalouge for the complete range of Duspol voltage indicators.
I tried to enter it 5-6 times and everytime an error of some kind!.
Thanks a bunch for your help guys, in locating that link.
Bjarney,
The link that C-H gave above is the one that starts the download of a PDF brochure from Benning, who manufacture the Duspol.
It gives specs on each tester too.

{Edited to add last bit.}

[This message has been edited by Trumpy (edited 08-21-2004).]

I think that supports the possibility of capacitive coupling via the user as the third "connection" point.

My bet is that if you opened up one of these units you'd find a plate of some sort inside the handle to achieve this coupling.