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Old 01-21-2017, 10:19 PM   #1
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Default My latest project - Blowers!

Three new 75hp Aerzen blowers were installed for lagoon aeration. Project included new mcc, plc, and instrumentation.

600A, 600VAC, 3ph, Eaton MCC


Since this is an intelligent MCC it has an ethernet switch in it to pick up the distributed I/O (VFDs, starters, protective relay, etc)


400A main breaker with dials set to maximum values. Shunt trip wires on the right.


Eaton DG1 VFD's. Little bit quirky, but I'm sure they will get them dialed in eventually. They've only been on the market for about a year. Controlling them via ethernet.


Control panel. DC UPS top right - only way to go.


Protective relay to coordinate main breaker.


Inside blowers


Rear of the blowers

Last edited by triden; 01-21-2017 at 10:25 PM.
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Old 01-21-2017, 11:09 PM   #2
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Good work, I like it!
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Old 01-22-2017, 01:30 AM   #3
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Excellent job!!! Thanks for posting!!
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Old 01-22-2017, 01:34 AM   #4
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That's some lagoon.
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Old 01-22-2017, 06:08 AM   #5
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Nice looking job!
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Old 01-22-2017, 06:46 AM   #6
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600 volt rated cat5 in the second picture? I ask because I had to have some for a solar job. My SH salesman said it didn't exist. I had to send him info that showed it being used in MCCs.
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Old 01-22-2017, 07:29 AM   #7
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Quote:
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600 volt rated cat5 in the second picture? I ask because I had to have some for a solar job. My SH salesman said it didn't exist. I had to send him info that showed it being used in MCCs.
I think they're regular Hubbell patch cords, the 600V ones are a little bigger, probably so that you feel less assraped by Allen Bradley paying more for cords than the switch.
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Old 01-22-2017, 12:21 PM   #8
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What's in the lagoon? What's it for what does it do, and why does it need air?
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Old 01-22-2017, 12:32 PM   #9
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Quote:
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600 volt rated cat5 in the second picture? I ask because I had to have some for a solar job. My SH salesman said it didn't exist. I had to send him info that showed it being used in MCCs.
Looks like regular cat5, but looks like all 120V there.

You could look at this for your project thou ...

http://www.belden.com/blog/industria...y-Industry.cfm
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Old 01-22-2017, 01:23 PM   #10
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While I realize it's most likely a factory-built bucket, I don't like the idea of anything above the control power transformer. They produce considerable heat and stuff mounted above them tends to burn up after a while.

I have gone so far as to rebuild a bucket so the CPT is at the top, often after a device above it has failed due to heat.

Also, this is just me being dumb but since every bucket in a MCC uses A & B for control power, I use either B & C or A & C whenever I can.

Yes, the imbalance of control power has pretty much zero effect on anything but it's just the way I am.
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Old 01-22-2017, 02:26 PM   #11
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Anyone else notice, it looks surprisingly similar to the Retro-Encabulator.
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Old 01-22-2017, 06:17 PM   #12
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Quote:
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600 volt rated cat5 in the second picture? I ask because I had to have some for a solar job. My SH salesman said it didn't exist. I had to send him info that showed it being used in MCCs.
We called it blue hose when used in industrial applications. Not sure why. Didn't want to be linked to data com guys maybe.
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Old 01-22-2017, 06:30 PM   #13
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nice job.

where's the pictures of the lagoon ?
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Old 01-22-2017, 06:55 PM   #14
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Quote:
Originally Posted by backstay View Post
600 volt rated cat5 in the second picture? I ask because I had to have some for a solar job. My SH salesman said it didn't exist. I had to send him info that showed it being used in MCCs.
This MCC has separate wireways for class 2 wiring (almost all do these days). Also, the CEC allows low voltage mixed in a high voltage area (in this case bucket) as long as it's to control the device in the bucket.
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Last edited by triden; 01-22-2017 at 07:01 PM.
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Old 01-22-2017, 06:57 PM   #15
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Quote:
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nice job.

where's the pictures of the lagoon ?
Imagine a small lake, but filled with poop. And lots of ducks on it.
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Old 01-22-2017, 07:01 PM   #16
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Quote:
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While I realize it's most likely a factory-built bucket, I don't like the idea of anything above the control power transformer. They produce considerable heat and stuff mounted above them tends to burn up after a while.

I have gone so far as to rebuild a bucket so the CPT is at the top, often after a device above it has failed due to heat.

Also, this is just me being dumb but since every bucket in a MCC uses A & B for control power, I use either B & C or A & C whenever I can.

Yes, the imbalance of control power has pretty much zero effect on anything but it's just the way I am.
I see your point and that makes a lot of sense. You are right with this being a factory bucket. The CPT in that bucket only powers the switch and is the only bucket with a control transformer in it though.

With that said, Eaton screwed up the wiring of a couple devices that had to be corrected on site. Had to rewire the VT's and CT's going to the protective relay. The HOA's on the VFD also had to be modified to work.
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Old 01-22-2017, 07:07 PM   #17
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Quote:
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Imagine a small lake, but filled with poop. And lots of ducks on it.
With a name like Triden ... I thought you were on the 'supply' side of things

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Old 01-22-2017, 11:18 PM   #18
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A-B has true 600V Cat 5E Ethernet cable, listed as PLTC (Power Limited Tray Cable) and you can buy it by the reel.
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