Maggie’s Motivational Pic Thread v2.0 - - New Rules - See Post #1

8e5byo.jpeg
 
Wasn't my work.

The customer had a failure on the primary side... I just opened the xfmr and cleaned out all the dirt and cobwebs, checked connections, etc...

The date on the fuses in the MV switch feeding the primary side of the xfmr was February of '89. The switch itself said November '88 on the tag.

Neither the switch or the xfmr looked like they had been cleaned/PM'ed in 35 years. In fact, the chain on the throw handle of the switch was rusted and broken. We had to call the utility to pull the cutouts because we couldn't shut it off.

You can't see it in the picture but there was oil leaking out around the X2 and X3 bushings on the secondary, and around the H3 bushing on the primary.

There was a whole list of shit wrong. We cobbled it back together to get them up and going and sent a list to the boss. He's going to break it down line item style and give them a quote to get everything back to ship shape.

Mike

Primary side pic to satisfy the rules. It's just a "temporary" band-aid to keep the lights burning and motors turning... We'll see if they actually follow through or let it go until the damn thing burns down.

View attachment 8340925
dont most pad mounts leak if there over 20 years old (especially when there over heating like in July)
ive seen bucket inside of them to catch the mineral oil leaking
 
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Wasn't my work.

The customer had a failure on the primary side... I just opened the xfmr and cleaned out all the dirt and cobwebs, checked connections, etc...

The date on the fuses in the MV switch feeding the primary side of the xfmr was February of '89. The switch itself said November '88 on the tag.

Neither the switch or the xfmr looked like they had been cleaned/PM'ed in 35 years. In fact, the chain on the throw handle of the switch was rusted and broken. We had to call the utility to pull the cutouts because we couldn't shut it off.

You can't see it in the picture but there was oil leaking out around the X2 and X3 bushings on the secondary, and around the H3 bushing on the primary.

There was a whole list of shit wrong. We cobbled it back together to get them up and going and sent a list to the boss. He's going to break it down line item style and give them a quote to get everything back to ship shape.

Mike

Primary side pic to satisfy the rules. It's just a "temporary" band-aid to keep the lights burning and motors turning... We'll see if they actually follow through or let it go until the damn thing burns down.

View attachment 8340925
What primary voltage?? The stress cones look old af. Those "extensions " are fancy. Got to make it work.
 
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What primary voltage?? The stress cones look old af. Those "extensions " are fancy. Got to make it work.
13,200 based on the load tap changer setting.

Yeah they were pretty tracked up. Worst I've seen.The pieces of bus replaced some jumpers. The way it was originally set up was the feeders came in and hit some old MOV surge arrestors with jumpers going up to the primary bushings.

The customer/utility had added the newer arrestors up on the pole at some point. So the boss said to yank those old porcelain MOV arrestors since they tend to explode like a grenade when they fail.

We also changed out a failed fuse in the switch... That sucker was $3k

Mike
 
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dont most pad mounts leak if there over 20 years old (especially when there over heating like in July)
ive seen bucket inside of them to catch the mineral oil leaking
Probably. I don't mess with old ones much. Mostly hook them up on new installs. The little gasket between the paddles and the porcelain on the bushings looked pretty sketchy... We actually touched/jostled them as little as possible. It just looked like one of those deals where the more stuff you touched the more it would fall apart.

Mike
 
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I've done that, just not that bad of results. Many years ago. When I let off the gas, it got worse. When I touched the brake, it got way worse. Tried accelerating, worse. Just had to ride it out and wound up in a shallow ditch. Pulling a poorly designed pipe trailer loaded with pipe. Only 1 way to load it.
Found this demo that shows me what was wrong.