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The last wedding I attended had folks all jumping in unison on the dance floor.

So what is "induced atmospheric vibration" and how does it cause loss of synchronism?

Not true. Some of the margin is made up by nice carbon free dispatchable hydro. Of course some wish to breach the dams to ensure your statement becomes true.

Waross, The project I was involved with was residential and subject to the USA NEC. As I indicated, it was approved by the AHJ. The customer knew that not all electricians will work on the 7200 V portion and decided to proceed anyway. He did the trenching and cable laying himself, and found a...

There should be no problem with the system proposed. I've seen problems using 120/240 winding with a neutral connection used as a step up transformer. The result is unbalanced current and voltage, and possible overloading. All balanced out with the neutral wire removed. Have you found a source...

The stationary diesel tanks I've seen have double walls in order to have built in secondary containment. Actual interior tank dimensions would be much smaller.

To provide a reference.

Thanks. Not much fault variability once it got beyond the "pre-fault" stage. I tried some calculating in Sychrowave Event, zoomed in on the pre-fault.

I had the path wrong on G-H, it does share a path with F-G for part of it's length. As far as G-H coupling with F-H, would a parallel path 2000 ft away for 2.4 miles have an effect?

https://dam-assets.fluke.com/s3fs-public/2105317_A_w.pdf?VersionId=ay9a7MLeqmnY7PfwYfAwHUEmUfd5yh_a

I can see there'd be some mutual coupling between F-G and F-H as they run down opposite sides of the same road as they exit F for several spans. G-H does not share a common path with the others, although the distribution underbuild may link them. I'll see what I can do to model the F-G and F-H...

Gotta love those modern high impedance digital multimeters. Every little bit of capacitive or inductive coupling from other circuits is captured. 10 V is a small fraction of the normal 120 V to ground, so you have the right breaker. No adverse effects.

Triplen harmonics add in the neutral. It is common to upsize the neutral for non-linear loads.

I'm seeing nothing simultaneous, but a 17 A line to ground contact would not be picked up as a fault on distribution.

Suppose an evolving fault could throw off the distance elements? I see in the "pre-fault" area of the plot the phase currents are rather unbalanced looking, and 3I0 is not as close to zero as I would expect on transmission serving delta windings. About 17 A primary before shooting to 3000...

Free viewing on Roku.

Just watched the Oliver Stone film. Impressive treatment of the subject. Available pay-per view. I recommend it.

The I0ratio during the fault is about .53. I cannot get that ratio in Oneliner with a fault inside the differential zone.

Z1= 0.00617 + 0.01717j pu Zo = 0.01426 + 0.06091j pu No unmodeled ground sources.

Fault program has a routine to find fault location by inputting fault current. It runs lots of faults and spits out the best fit location. I can get the zone results by putting in fault resistance of 7 ohms. This throws the impedance line way off to the right, though. SynchroWave shows it much...