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Re: Some Whopper Motors #123856
06/02/06 07:46 AM
06/02/06 07:46 AM
electure  Offline
OP
Member
Joined: Dec 2000
Posts: 4,280
Fullerton, CA USA
Dnk,
The biosolids, or sludge, from the sewage treatment plant just down the way from the water replenishment facility is trucked out and composted...230,000 tons of it a year.
Currently, the wastewater is all sent out a pipe 4.5 miles offshore and discharged in about 200' of water. Many believe that it's the source of bacteria that often forces beach closures. The new plant will take a load off of this discharge....until population growth catches up with the whole thing again.

Tools for Electricians:
Re: Some Whopper Motors #123857
06/02/06 11:09 AM
06/02/06 11:09 AM
B
Big Ed  Offline
Member
Joined: Apr 2004
Posts: 55
Roxboro, NC, USA
Celtic,
The terminations aren't bad. You just think of it as a splice, and put a terminal lug on it instead of a butt.

We have 4 2500 HP motors here. It is impressive when they start up. (across the line).

Re: Some Whopper Motors #123858
06/02/06 05:23 PM
06/02/06 05:23 PM
C
Celtic  Offline
Member
Joined: Feb 2005
Posts: 361
NJ
Here's a question...where's the peckerhead? (junction box for the motor and line terminations/connections for anyone before they have to ask )


~~ CELTIC ~~
...-= NJ =-...
Re: Some Whopper Motors #123859
06/02/06 06:59 PM
06/02/06 06:59 PM
mxslick  Offline
Member
Joined: Oct 2004
Posts: 803
Atomic City, ID USA
Celtic, I think the terminations for the motor itself are in the large rectangular can with the number on it, near the top of the motor.

Big Ed, impressive in what way? I would imagine the noises both the motor and switchgear make to be interesting and a bit scary.


Stupid should be painful.
Re: Some Whopper Motors #123860
06/02/06 07:21 PM
06/02/06 07:21 PM
N
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
Yes, the large box is the peckerhead. Inside is bus with the standard NEMA 2 hole pattern so in this case it's just a standard MV termination. We are going to have to turn them 90 degrees because they are getting fed via cable tray that will run along side just to the right of the beam you can see. There are 3 tiers, 4160, 480 and controls. Like I said before the small box you can see is the heater termination box and there is another box on the other side, out of site, where the inlet/outlet temp, bearing temp and vibration RTD's terminate into a terminal strip.
Electure, interesting tid bit of info. The water from this plant will come from OCSD plant 1 next door via a 96" pipe. It has already been treated but is still pretty stinky. The finished product will be split between being pumped into the ground water and pumped all the way up the Kramer basin near the 91/55 junction where it will settle naturally into the ground. They have had the Santa Ana river trail closed for some time installing that line.

Re: Some Whopper Motors #123861
06/03/06 10:11 AM
06/03/06 10:11 AM
H
HighPotter  Offline
Member
Joined: Aug 2004
Posts: 42
So. Cal
Nick,
Are you using shielded cable on this?

HP

Re: Some Whopper Motors #123862
06/03/06 12:08 PM
06/03/06 12:08 PM
C
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
This looks like a very inexpensive project. [Linked Image]

Peter


Peter
Re: Some Whopper Motors #123863
06/03/06 12:20 PM
06/03/06 12:20 PM
N
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
Yes, the VFD manufacturer requires 8KV shielded or non shielded cable. We are using shielded per project specifications. It looks like we will go with 3M QT-III terminations. Believe it or not this project is still under the 96 NEC so if it wasn't for the spec non shielded would be an option.

Cable

Re: Some Whopper Motors #123864
06/04/06 12:44 AM
06/04/06 12:44 AM
H
HighPotter  Offline
Member
Joined: Aug 2004
Posts: 42
So. Cal
Reason why I asked, it looks like it might be tough to make the terminations in that small an area. Non- Shielded would be a breeze.

HP

Re: Some Whopper Motors #123865
06/07/06 07:53 AM
06/07/06 07:53 AM
B
Big Ed  Offline
Member
Joined: Apr 2004
Posts: 55
Roxboro, NC, USA
mxslick,
The noise and the voltage dip.

They are the feedwater pumps at a power plant. 2500 psi output. It looks like an old prison movie when they start. All of the lights dim for just a second.

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