Greetings All,
I'm consulting on an 480V 3ph 4W ~1.5 MVA system that powers a building and small data center on a university campus in the U.S.
There are three power sources to this system, each with an independent bonding jumper. Each on a different SWBD. The system wasn't designed that...
Greetings All,
I'd like to solicit opinions on the following question - Should there be any significant zero sequence (ground) current during the energization of a XFMR?
The event which gives rise to my question is a ground fault trip that happened when the XFMR was energized with no...
I'm looking for recommendations on software that can graphically display data (currently in the .csv format) that I am pulling together from 5 different recorders.
We are monitoring a drive system that is connected to a soft utility and have data from a couple of dranetz's on the power...
Hi all,
I normally take images of my entire laptop HDD about every six months using Symantec ghost , and back-up all data much more often.
When attempting to create a new image last week, ghost failed and informed me that there were bad sectors on the HDD. I have two partitions on the drive...
Hi,
On a recent project, I was asked to check operation of a panelmount kW meter at the last minute. Since we didn't have a manual defining the test, I attempted to draw out the phasors of the meter and devise a test of my own.
The connections to the meter (per the diagram on the side) are...
