Xfrmr Install

A

Alwayslearningelec

Senior Member
Location
NJ
Occupation
Estimator
Got this pic courtesy of helpful member here:). If this was going on 1st floor. Could two electricians get this taken in from delivery and installed as you see it in one 8 hour day?

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Have I stalled up yo 75 KVA transformers by myself in less then 8 hours. A couple of the machine shops & injection molding shops had heavy duty die carts to lift them up..Have used chainblick.or come slings to raise them in small electrical closets but ideal if you can use a fork truck or powered lift to raise it. While I was on two weeks of jury duty I had to stay up.most of a night replacing a bad ceiling hung 75 KVA transformer.
 
Whoever layed out that room was almost pushing clearance issues...
Almost. Seems like whichever side the secondary °90 ends up, it'll be tight..
Anchors in the grout line are annoying as well.

8/16 hrs easily but depending on a delivery and same day installed could get tight. You also need the equip. crank lift on site as well...
 
rambojoe said:
Whoever layed out that room was almost pushing clearance issues...
Almost. Seems like whichever side the secondary °90 ends up, it'll be tight..
Anchors in the grout line are annoying as well.
Click to expand...
You're right that it is tight but there are no clearance issues although the photo may be deceiving. Also there are no anchors in the "grout line" as they are rods through the block.

Stacked Transformers.jpg
 
infinity said:
You're right that it is tight but there are no clearance issues although the photo may be deceiving. Also there are no anchors in the "grout line" as they are rods through the block.

View attachment 2578708
Click to expand...
So its your tranny?
Anyway, i did say almost.
And i have no way of knowing if its allthread straight through w/squares on the back.
Albeit anchored from the ceiling, if it was drop ins in the grout- that would be bad.
I assume its smaller than a 45kva?

No need to get offensive, i just said almost....
Nick picking is how we train our electricians.. even if we do it "a" way and a appr. does it the same, we still gripe. Its how we get better.

Again, i love one lines and e-room layout.
Its my jam. I know its yours as well.

Anyway, its getting tougher to rely on delivery requests, as of late.

Is it your pic?!
Is that a column on the right?
 
I would feel safer if the unistrut extended a few feet below the existing installation. Have seen workers standing on top of transformers performing work. Never used the nice guess you call them vibration dampers when I hung transformers off walls or from ceilings. On old questionable cinder block walls would use three 1/2" all thread on each strut piece thru the block with 1900 covers & a fender washer on other side.
 
garbo said:
I would feel safer if the unistrut extended a few feet below the existing installation. Have seen workers standing on top of transformers performing work. Never used the nice guess you call them vibration dampers when I hung transformers off walls or from ceilings. On old questionable cinder block walls would use three 1/2" all thread on each strut piece thru the block with 1900 covers & a fender washer on other side.
Click to expand...
many electricians use fenders improperly.

should not use them where they bend or deflect. should use thick washer or square washers, not a fender.

especially with unistrut.

check UL standards.
 
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