Does anyone know of a manufacturer that makes a 15kV class insulator to use
for the purpose of minimizing fault induced conductor gallop,due to magnetic forces and does the NESC allow insulators to be used for this purpose?
The utility company that I work for routinely installs a thin piece of sheet metal that is then nailed to the tops of our wood distribution poles. This company has done this practice for many years and still continues it, with the justification of protecting the pole top from rot (by capping...
What are some criteria to consider in letting a three-phase 18/24/30 MVA 154/13 kV power transformer sit idle for long periods of time. My particular unit has a nitrogen pressure system and heaters installed on the unit. Is there any detriment in letting the unit sit idle?
Does anyone know where I can obtain initial sag/tension charts for various sizes of acsr conductor for different ruling spans and temperatures? This is for a distribution feeder application in the medium loading district.
Is there a device made to provide high-side protection of distribution transformers that opens all three phases as opposed to individual fused disconnects that allow the transformer bank to backfeed and single-phase?
Is there any advantage gained by running the cooling fans on a distribution substation transformer that is normally loaded on peak to approximately 70% of the base rating? This particular unit has two stages of fan forced air cooling with ratings of 18/24/36 MVA respectively. To my knowledge 17...
Does anyone have a good hand calculation method or methods for locating shunt capacitor banks on a three-phase 4 wire multigrounded distribution feeder, strictly from the standpoint of minimizing line losses?
