HV gone wrong....!

[Bobster]

The hiss given off when winding in breakers is still un-nerving for me. Caused by the potential between the two contacts creating ozone.

 

[Knobhead]

The hiss given off when winding in breakers is still un-nerving for me. Caused by the potential between the two contacts creating ozone.

At that point I go in to second gear and speed up the winding!

We had some 3.3KV ACB's, god were they slow to wind in. But the set up we had it was always done dead. each ACB weighed 15CWT! This is the only photo I have of one after the original ACB had been replaced with a VCB. The truck is near 5" 6' high.
View attachment 13255
The biggest laugh was I found the original operating manual, it showed an Eric Morecambe look alike just trundling the truck around, in real life two of us would be going purple around the gills heaving and straining to shift it.

 

[Knobhead]

Durham, out of interest what was the outcome of the enquiry?

 

[DurhamSparky]

Still ongoing as ABB are now arguing between them self and the designer....

Good new though. Supply cables passed pressure test.

one less job to have to consider.