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Old 09-01-2020, 4:41pm   #21
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Someone call aero.
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Old 09-01-2020, 4:54pm   #22
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Wait till you have 440V at 300 amps blow up in your face with an arc flash.

I quit work for over an hour because of that. Took out the whole section of a FOB when I did that.


No voltage or amperage is on the low end.
thankfully it wasnt a really serious arc flash or you would be buried. ive seen 480 volts blow too many times to discuss over the years.

i remember doing the new chillers at the U.S. Mint. 4200 volt GE Multilin starters we had to rewire the internals to go from one brand spec to another in terms of interlocks. we had to bring the ge tech in to program a few things like ramp timing, fla, etc. when we turned that sumbitch on that poor dude was crapping his pants, lol.
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Old 09-01-2020, 5:06pm   #23
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Pffft. One of our generators puts out over 20,000 volts and goes through a step-up transformer to 345,000 volts.

Thatís it. Thatís all I know about the electrical side of our plant. Shit scares me. You can SEE a water leak. Electricity? Not so much.

BS, loose more in ionization to the air than leaving it at say 50 kv.....witch is kinda high at that......I can't imagine how in HELL 50kv acts in say a rain storm......at 7x that potential, RMS I can't see how in HELL any ONE or THING is safe......
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Old 09-01-2020, 5:33pm   #24
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BS, loose more in ionization to the air than leaving it at say 50 kv.....witch is kinda high at that......I can't imagine how in HELL 50kv acts in say a rain storm......at 7x that potential, RMS I can't see how in HELL any ONE or THING is safe......


You're the same guy that thought a few 6" pipes would be enough water to supply a typical plant if I remember correctly.
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Old 09-01-2020, 5:47pm   #25
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Thatís nothing. Iíve got a 50kv bobulator with a water cooled step up transformer putting out 1.2 jiggawatts to a pure goobernium whackotron that feeds my super strongium fleshlight boner zapper.
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Old 09-01-2020, 5:48pm   #26
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Thatís nothing. Iíve got a 50kv bobulator with a water cooled step up transformer putting out 1.2 jiggawatts to a pure goobernium whackotron that feeds my super strongium fleshlight boner zapper.
Do you have one for each individual penis?
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Old 09-01-2020, 6:11pm   #27
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Originally Posted by z06psi View Post
Wait till you have 440V at 300 amps blow up in your face with an arc flash.

I quit work for over an hour because of that. Took out the whole section of a FOB when I did that.


No voltage or amperage is on the low end.
As a machinist, I make various parts for industry. One of the parts is copper bars for use in electrical equipment. The parts get silver ( or at least a silver color) plated.

One of the guys from the company brought back a part they needed to be replaced. He said "We had a little problem" with a big grin.

The copper bar was 4" wide and 3/4" of an inch thick ( rounded edges) and started life 10" long.

It was now about 6" long and the missing part looked like "hot fingers" scooped out the copper.

I asked WTF happened and he said it was quite loud as the copper turned to vapor and disappeared due to a short.

F that. I'll work on multi ton weldments in the lathe before I work with anything more than house current. ( yes, I know 120VAC can kill you )
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Old 09-01-2020, 6:39pm   #28
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Do you have one for each individual penis?
Yes. Yes I do. Thanks for rembering. And for an unforgettable night.
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Old 09-01-2020, 6:54pm   #29
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Doing industrial security work in the early 80's a couple of my trips were to new clear power plants.......interesting to say the least......one of them was under full tilt operation one of the top guys was nice enough to take me around the joint......impressive to say the least.....transformers the size of houses......

a field full of them.......generators too big to imagine

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Old 09-01-2020, 7:05pm   #30
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Old 09-01-2020, 9:23pm   #31
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Speaking of electricity wanting out...
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Old 09-02-2020, 5:21am   #32
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Most of our site is Eaton. Our 15KV substation is Eaton. Weíve had a couple of failures, but they handle them without too much fuss. Our building distribution is 480V and 208V. We do have 7 4160V chillers.
I worked for Trane and only saw (4) 4160V chillers in my tenure... and don't want to see them again.
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Old 09-02-2020, 5:43am   #33
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I worked for Trane and only saw (4) 4160V chillers in my tenure... and don't want to see them again.
I've installed a few of those over the years. Big centrifugal bastards.
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Old 09-02-2020, 5:50am   #34
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I've installed a few of those over the years. Big centrifugal bastards.
We now have 4 Synchronous motor chillers and 3 dual motor split units installed by Johnson Controls. And yes, big bastards.
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Old 09-02-2020, 5:55am   #35
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Yep, sales guy showed me this vid a while back. Freaky as hell.

Wild how they touch that rod to the power line to equalize the potential. I don't even get how that works.




High Voltage Cable Inspection - YouTube
Them guyz is nuckin FUTZ!!!!!!! anyone here ever been bit off an old vacuum tube color TV?? knock your ass right off the chair.......and that power is rated in milli-amps.......I can't imagine how in HELL that pilot keeps the bird that steady, considering any wind at that height......

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Old 09-02-2020, 6:01am   #36
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We now have 4 Synchronous motor chillers and 3 dual motor split units installed by Johnson Controls. And yes, big bastards.
I did a short stint with Johnson years ago. Back when building controls were pneumatic. These days almost all new installations are DDC.
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Old 09-02-2020, 6:10am   #37
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I did a short stint with Johnson years ago. Back when building controls were pneumatic. These days almost all new installations are DDC.
??????
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Old 09-02-2020, 6:12am   #38
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??????
DDC = Direct Digital Control
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Old 09-02-2020, 6:24am   #39
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DDC = Direct Digital Control
DDC is so much better than pneumatic. Leaky bastards. We have to run 3 compressors to keep up with air demand. Energy nightmare.
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Old 09-02-2020, 7:41am   #40
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DDC is so much better than pneumatic. Leaky bastards. We have to run 3 compressors to keep up with air demand. Energy nightmare.
Cut my teeth on pneumatics, they work for years as long as the aftercooler is working. Death of a pneumatic systems is oil and water carryover. Plus they are truly an "open" system with anyone's direct or reverse acting thermostat being interchanged. Or a damper or valve actuator could be replaced with another manufacturer (JCI, Honeywell, BC, Robertshaw)...as long as you had the right spring range. Lighting certainly didn't hurt them and no one could hack in.

When the first DDC systems came out and we were doing hospital work, the engineers weren't confident that the DDC system would work so we had to install a redundant pneumatic system plus the electronic system.

Now all we install is electronic and I'm the only one that can tell the youngsters what to rip out in the old control panels!
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