Does anyone know a quick check for obtaining the maximum LG fault current on the low side of a 14.4/7.2 kV (24.94/12.47 kV L-L) autotransformer?
I'm running a fault current study that shows 2723A LG fault on the 14.4 kV side and 674A LG fault on the 7.2kV side. I know the fault currents are...
Yes, the distribution feeder has some single phase taps that go through trees. I am going to field inspect the circuit again to get a closer look. Thanks guys.
I work for a utility. As shown in the attachment, the blinks occur randomly. However, I am able to relate a couple of the events to weather.
The three phase portion of the ciruit is about 5 miles long, with most of the single phase taps protected by relosers or fuses. The three phase line...
The blinks are instantaneous. The attached graph shows the blinks. I think the sample interval is set for 1 minute, so it's hard to tell on the graph.
The transformer connections and primary connections were checked and everything looked ok. Is it likely that the problem could be resulting...
I have a three phase, 480/277, 750kVA, Y-Y solidly grounded, transformer with 4 runs of 500MCM copper to the service entrance (approximately 60 ft). A voltage recorder at the meter shows several voltage blinks on 1 phase, while the other 2 phases seem normal. The voltage that drops on the...
I am involved in a project involving the addition of capacitor banks (fixed & switched) to 14.4k and 7.2k distribution lines. We have done the research to properly size and place the capacitor banks. I do not have any experience with power capacitors and am very concerned with dangers...
