Always in the direction of current flowBut you better make sure you polish in the correct direction.
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Power cords
- Thread starter BlueTalon
- Start date
Which direction does current flow in alternating current?Always in the direction of current flow
I read the post title as "Power Chords" and was totally confused when I started reading.
More like 1080MVA which doesn't seem realistic, I'd bet this was really 2500a on the output transformer load side (staying under 4-5kA on the current interrupting device) or the 25kA was on the line side and 25kV on the load.
- Feb 12, 2006
- 61,024
- 5
- 220,897
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
That's what I get for doing it in my head without adequate coffee, dropped a ee^3 AND a sqrt 3 factor, but you know what I meant! That would be a hell of a big single rotating machine.
Oops. That was a late night copy and paste disaster.
Oops. That was a late night copy and paste disaster.
Ahh, but does it? Round and round she goes, where she stops, nobody knows...From the source to the load
- Feb 12, 2006
- 61,024
- 5
- 220,897
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
When you look at my equipment profile, don't be fooled. I put most of my money into my power cords. 
M. M.
M. M.
Don’t forget to polish your cables with magic cable conditioner…
If you're familiar with a contact cleaner called Cramolin, it's the predecessor to CAIG, AFAIK. When I worked at a stereo store, a guy who fancied himself to be an 'audiophile' had come in to see what was new and just before h e left, he asked if I had any of that cleaner. I said that I did, at home. He told me that I should put it on the tangs of my power plugs and when I asked why, he said it lowers the background noise level and tightens the bass. I said "Get out!" and he responded with "No, really", as if we were kids and I didn't believe what he had said. I then said, "No, I mean get out of the store- you're wasting my time".
I still work in AV, home theater, network (which is the reason my mistake is so galling) and a sales rep has cable supports, cables with plastic boxes on them, nice equipment and a whole lot of BS in his head about what that stuff does for the sound. When I explain why some of it can't do what is claimed and how it's BS, he just says "It's experiential". At his last house, the guy put all of his speakers in the same place on the floor and that just doesn't work. He had one wall in his music room that was 100% glass in a mid-century modern house (floor to ceiling) and he had apparently been told to use insulation to solve the problem of reflected sound, so he got a sheet of pink foam and stood that up. I went there to listen and he had terrible phase problems, so I propped some pillows on the backrest of the sofa and solved them before explaining what was happening.
You should have seen the record cleaner he had borrowed- complete joke and it sells for the low, low price of $1300. He had a Nitty Gritty cleaner that needed some work, so I took it home, opened it and laughed- looked like a bad science fair project on the inside, looked like a 1970's water bed on the outside.
It was for such people that the saying " A fool and his money are soon parted." was coined.
I guess they keep the economy going, to some degree.
Yup! A base-load power plant. Big stuff.
Those are the max ratings on the generator, normal full load is right around a thousand megawatts. A roughly one million horsepower, 1800RPM turbine, 195' long shaft with a high pressure and two low pressure units on it, turns the 30" diameter shaft on the generator. Everything is, uh, a bit overbuilt. Oh, and that shaft gets about one full turn of twist over it's length from the torque.I'll skip the details on the exciter for the generator armature, except for the fact that the exciter power comes from a smaller generator off the main shaft, which has it's own exciter! The 0-100VDC there controls the end voltage proportionally.
The three conductors from the generator to the main transformer are basically 18" diameter aluminum pipes, about an inch or so thick, because about 90% of the current is conducted in the outer 10% of any conductor anyway; so the design eliminates the entire inside of the conductor, and uses it as a tube for cooing air flow. Air goes into the inside in the middle of the three conductors, flows outwards towards the connection boxes at each end, and back to the water-cooled cooling unit in the housing around the conductors. Without cooling, load is restricted to 60%, I think.
At the transformer voltage is raised up to 345KV nominal at a couple of thousand amps and is sent down the four highlines. The MG set and voltage regulator I mentioned were redundant supplies for the control rods power. There are four reactor coolant pumps churning out 6,000HP on line (8,000 @ cold startup); the two main feedpump turbines were 12.5KHP each, 4KHP for four tertiary loop (cooling tower) pumps. Like I said, big stuff. Kind of a hoot to operate. Imagine 1.2 million Mesa 800s cranked....
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