12 Gigawatt Transformer - Page 1
Forum section: electronics / testgear

author: GeoffreyF
author_rank: Regular Contributor
timestamp: November 09, 2018, 02:13:40 pm
content: Only an order of magnitude more to go and we can charge the Flux Capacitors in the Delorean.

author: LapTop006
author_rank: Unknown
timestamp: November 09, 2018, 02:24:02 pm
content: Quote from: GeoffreyF on November 09, 2018, 02:13:40 pmThat was 1.21Gw, overload this a little and it can be your distribution transformer for ten of them at once.

author: Wan Huang Luo
author_rank: Regular Contributor
timestamp: November 09, 2018, 04:18:15 pm
content: I couldn't watch with sound on because I'm at work. Is this about the HVDC installation in Choyna? Seems awful familiar to me.

author: Whales
author_rank: Super Contributor
timestamp: November 09, 2018, 05:18:02 pm
content: It's almost entirely bushing -- I dare not ask what the protection systems on something this HVandDC look like. I also wonder what fun gas the main guts are insulated with. Still CF6?

author: threephase
author_rank: Regular Contributor
timestamp: November 09, 2018, 06:20:28 pm
content: Looks more like an oil filled transformer to me.SF6 is the most common used gas for insulating, but predominantly in switchgear and busbars. Sometimes CF4 is mixed with SF6, but used alone CF4 has lower insulation properties.Protection systems will be fairly standard numerical relays these days, just need to get a current transformer with a suitable ratio.Kind regards

author: Whales
author_rank: Super Contributor
timestamp: November 09, 2018, 07:35:32 pm
content: Quote from: threephase on November 09, 2018, 06:20:28 pmMy apologies: I'm referring to the switchgear used to protect, not the sensing used to protect. Action, not detection.

author: BrianHG
author_rank: Super Contributor
timestamp: November 09, 2018, 07:52:21 pm
content: Quote from: GeoffreyF on November 09, 2018, 02:13:40 pmListen to the narrator in the video carefully. This is a 12Gw transformer. The 1100kv is the voltage not wattage. This transformer can power 10 Delorian time machinesSIMULTANEOUSLY!.However, the movie isn't specific about the 1.21Gw being a single instant power surge, or, power drawn. Maybe this transformer can do continuous non-stop time travel 10 fold over. Considering the size of the conductors in the movie, I would have to say the continuous 10 fold over time travel is the more likely scenario, not to mention that every wire and the structure of that car should have imploded feeding the 1.21Gw in such a confined apparatus without superconductors an all other materials could not be metal of any type.

author: threephase
author_rank: Regular Contributor
timestamp: November 09, 2018, 08:35:39 pm
content: Quote from: Whales on November 09, 2018, 07:35:32 pmAah I see, no need to apologise.At HVDC the switching arrangements are usually by IGBT cells linked in series to get the required voltage level. Some manufacturers do use hybrid type breakers that have IGBTs to switch the current and then a mechanical switch to break the voltage.On their own, mechanical switches are not fast enough for switching HVDC.Kind regards.

author: djacobow
author_rank: Super Contributor
timestamp: November 09, 2018, 08:50:28 pm
content: Umm, maybe dumb question here, but what is a DC transformer? What, exactly, does this beastdo?

author: tautech
author_rank: Super Contributor
timestamp: November 09, 2018, 09:02:49 pm
content: Interesting but totally wrong board on the forum for this thread........not Test Equipment related at all.The OP can use theMove Topicfeature to shift this thread to General Chat or Project, Designs and Tech stuff where it's better off to be.https://www.eevblog.com/forum/projects/

author: djacobow
author_rank: Super Contributor
timestamp: November 09, 2018, 09:26:53 pm
content: Quote from: blueskull on November 09, 2018, 09:23:59 pmIt's confusing that they call it a transformer at all.