Unbelievable
Unbelievable
(OP)
Talking to a sales rep, He stated that the fault current in LA was getting up to 40KA @ 34kV, that is 1.36GW of fault current. I have a hard time even comprehending this. Are these numbers correct?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Unbelievable
RE: Unbelievable
To put things in perspective, we have a peak assymetric fault level of 340kA at 16kV on our generator terminals.
40kA is certainly a healthy fault level, but not exceptionally so by European standards. I imagine that a city the size of LA must have some fairly substantial primary substations, and that fault levels close to these substations will be corrspondingly high unless deliberate steps have been taken to reduce the fault level.
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RE: Unbelievable
The time element should also be considered in fault energy… GVA·seconds, I guess? Hopefully, some high-speed differential relaying will work as planned.
RE: Unbelievable
RE: Unbelievable
RE: Unbelievable