Timeline for Overhead transmission line voltage
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 27, 2019 at 17:28 | answer | added | xeeka | timeline score: -1 | |
| Sep 27, 2019 at 16:52 | comment | added | relayman357 | This paper may help. It is hard for us to help without all details of your model etc. Most likely you have a flaw in your modeling. | |
| Sep 26, 2019 at 16:07 | comment | added | kr3mn1 | I have simulated this, with 110 kV transmission line, and I was not simulating distribution transformers, there was just three phase load at 110 kV voltage level. But for any type connection of load (star, delta) I get this result | |
| Sep 26, 2019 at 16:03 | comment | added | kr3mn1 | No, there is just one three-phase transmission line. I thought that voltage on phase that is out is result of mutual inductance, Faraday's law of induction, and why it is not applicable for delta? | |
| Sep 26, 2019 at 13:39 | comment | added | relayman357 | Any mutual coupling to other transmission lines? | |
| Sep 26, 2019 at 13:33 | comment | added | relayman357 | Your wye-grounded source provides zero sequence while the delta does not. My first thought here is simply backfeed through your tap load transformer connections. Get copy of "Impact of Distribution Transformer Connections on Feeder Protection Issues" by David R. Smith. It was presented at Texas A&M protective relay conference in 1994 (March 21-23). I'll post a snip in an answer. | |
| Sep 26, 2019 at 13:14 | comment | added | relayman357 | What voltage are you measuring? How does it compare (magnitude and phase) to the source phase-ground voltages? | |
| Sep 26, 2019 at 6:38 | history | edited | kr3mn1 | CC BY-SA 4.0 |
added 131 characters in body
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| Sep 26, 2019 at 3:05 | comment | added | relayman357 | Draw a circuit and show us exactly what you’re asking. | |
| Sep 25, 2019 at 23:20 | comment | added | Bruce Abbott | zero compared to what? | |
| Sep 25, 2019 at 22:52 | comment | added | D.A.S. | The coupling is different | |
| Sep 25, 2019 at 19:54 | history | asked | kr3mn1 | CC BY-SA 4.0 |