Drive is broke...

norcal

Senior Member
Who was the Einstein who left the Aluminum stepladder in there & did someone try to get warranty service? (n)(n)(n)
 

brantmacga

Senior Member
Location
Georgia
Occupation
Electrical contractor
Me .... zooms in at the bottom. “Boy that back board sure is warped.”

Zooms back out. “What in the ....


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GoldDigger

Moderator
Staff member
Everybody knows your supposed to only store wood ladders in a drive cabinet! LOL!
That is quite wrong. I see no reason not to store fiberglass ladders too. With both wood and fiberglass ladders there will be occasional metal parts. Probably more metal in a wood ladder than in a fiberglass ladder. :)
[Really need to have Comic Sans font.]
 

Jraef

Moderator
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
I can’t get a decent answer from anyone as to why the ladder was there. I doubt it was an electrician with an aluminum ladder though. The drive is 500HP 18 pulse, but it’s toast now. The load lug arrangement is apparently a bush fix by the guy that installed it 10 years ago who didn’t like the original factory placement at the bottom. Now that I have bad knees, I can sympathize.
 
I'm guessing list price for a replacement is $50,000-$100,000 depending on how it's configured, what's the lead time on a 500HP 18-pulse drive? With downtime and installation that is one expensive ladder!
 

Jraef

Moderator
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
I'm guessing list price for a replacement is $50,000-$100,000 depending on how it's configured, what's the lead time on a 500HP 18-pulse drive? With downtime and installation that is one expensive ladder!
They can’t wait for a new one, my team is going to rebuild it in the field by replacing just the inverter portion with a new one. We will not reinstall the ladder though.
 
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