On an upcoming project we are required to measure the ground grid impedance of a ground grid installation for an outdoor 230kV substation connected with a hydro electric plant. The ground grids longest dimension is a little over 100 meters. A penstock approximately 600 meters long exists which...
I'm involved in a transformer replacement project where we are replacing two 1000/1500kVA PCB oil filled transformers with dry type transformers in a large mall.
The customers service voltage is 25kV. The 25kV is stepped down to 12.5kV through a 3MVA autotransformer. Downstream of the 3MVA...
I am working on ground grid installations connected to a power utilities 12.47kV 250MVA multi-grounded-neutral distribution system.
The utilities practice is to use single conductor 15kV concentric neutral conductors for distribution.
The phase fault current out of the substation is limited...
We are qouting some work which requires generator protection testing as part of the package. The relays used are SEL300G.
I have no expererience testing gererator protection but have experience commissioning line, feeder, bus and transformer protection.
If anyone here has any experience...
Do any of you know of other manufactures besides Baur or seka KMT who manufacture a high voltage resistance measuring bridge for cable fault locating.
Thanks in advance.
Hi,
I am completeing a short cicruit and coordination study for an industrial facility using SKM. Can anyone here advise me on X/R ratios comparing single phase pole mount transformers to 3 phase pole mount bank transformers when moddeling in SKM.
Thanks for you help.
Elmir
Hi,
Does anyone out there have a SKM library file for the old solid state Federal Pioneer USD relay?
If so would you mind sharing it. I've contacted SKM to no avail searching for the file. If the need be I can whip one up myself in SKM. Just wanted to check if someone out there already...
Hi,
I do not own a copy of the old westinghouse transmission and distribution reference book. If someone would be kind enough to look up the following information and post it on here I would very much appreciate it.
I am looking for the following characteristics of #2/0 ACSR cable:
Outside...
