many bidoyng units installed ~ 250 reclose operations after faults > 80% customer supplies...
TRANSCRIPT
Many BIDOYNG units installed
~ 250 Reclose operations after faults
> 80%customer supplies
restored successfully
but it did!
Design of BIDOYNG means it fits in 90% of UK substations
but there are always exceptions...
“Fitting to an open indoor board will be easy”
words I may have uttered once
These stalks are part of an indoorLV fuse board. Check out the U shapedobstruction around the feeder stalk!!!
Fuse panels, layout, enclosures at LV substations vary greatly.
We created a solution for the obstructed stalks, at the same time solving a problem
for installation of REZAP
Kelvatek Web
Very successful for managing LV faults, notifications of fault events & reclose operations, and shows necessary BIDOYNG fuse replacements
Also has a button for access to power quality data
Dense data, taken every minute
Stockport produced over 22M data points in first month
Kelvatek Web data plotting slowed, and slowed, then stopped
Voltage and current are sampled at 51.2kHz (1024 samples per cycle)
Transients are recorded, along with pre-fault data, on all 3 phases
3 phase data is fed to SELF - Single Ended Location of Faults
Example SELF Algorithm result : Malwood Road Substation
Fault was arcing P-P, P-P-N, 3P & 3P-N
5 transient events recorded over 3 days
SELF Calculated a maximum distance of 99m
Fault located at 90m
Accuracy > 90 %