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Old Nov 9, 2009 | 01:57 PM
  #16  
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Do the generators run at 1800 or 3600, or at something else completely different?

Given the huge gear ratio, are the transmissions "screamers" when you're up there? Ear protection required?

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Old Nov 9, 2009 | 02:23 PM
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The Rotor (the part that looks like a prop) spins at 14.4 RPM and the Gearbox steps it up to 1,200 RPM for the Generator, so that's what,,, an 84:1 ratio.

And yeah, it's like standing behind a jet engine if you're uptower and it's running, but from the ground, it's more of a distant whine. The most you hear from the ground is the wind passing over the blades and the relays banging open and closed.

There aren't too many reasons to be uptower while she's running, except to check a small number of items, and even then, it's not at full production. The risk of getting tangled up in the drive-shafts is way too high. Nobody survives those encounters, so they kinda frown on them.
 
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Old Nov 9, 2009 | 02:53 PM
  #18  
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OMG!!! Look what I just found!!! This was one of her last climbs!! She's such a dirty little piggy!!! Ha! Ha!! Ha!!!

I love you, Honey!!! Muah!!

Ha! Ha!! Ha!!! And she's even wearing her FTE Shirt!! Good Girl!!

 
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Old Nov 9, 2009 | 05:04 PM
  #19  
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This HAD to be "makeup" for photo-taking time!

I get dirty a LOT, and nobody gets their face that dirty without also getting their hands. shirt, and harness filthy!

And those pinky fingernails haven't got a hint of grime under 'em!

Busted!!!

Pop
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Old Nov 9, 2009 | 05:07 PM
  #20  
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Originally Posted by Snowbunny
The Rotor (the part that looks like a prop) spins at 14.4 RPM and the Gearbox steps it up to 1,200 RPM for the Generator, so that's what,,, an 84:1 ratio.
How is the output sync'd to the grid? Are the generators AC and mechanically sync'd, or DC and then inverted and electronically phase-locked to the grid?

If it's 1200 rpm, I suspect it's AC.

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Old Nov 9, 2009 | 05:34 PM
  #21  
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Yes, AC is correct.

All the power is inductive, so we run it through the DSTATCOM ~ Distribution Static Compensator ~ Which measures the incoming inductance and then adds capacitance to correct any reactive power blips, and keep the power factor in check. This also helps maintain a stable voltage as well. Needless to say, the Power Administration dearly loves us for that and spanks us hard if we don't get it right!!
 
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