OT: What is this thing?

rdrast · Mar 31, 2011

From the cover of the March edition of Plant Engineering Magazine...
http://e-ditionsbyfry.com/Olive/ODE/PLE/Default.aspx?href=PLE/2011/03/01

It looks like some huge high voltage filter stack at first glance, but on looking, the hat rings seem to have electronics boxes inside of them, and the ceiling and equipment spacing looks too small for anything over maybe 50 to 100 KV.

JesperMP · Mar 31, 2011

It is definitely high voltage stuff.

The round metal rings on the outside are for controlling the electrostatic field, so that there will be no corona discharge.

Not sure what is on the inside. Could be a high voltage rectifier.

rdrast · Mar 31, 2011

JesperMP said:
It is definitely high voltage stuff.

The round metal rings on the outside are for controlling the electrostatic field, so that there will be no corona discharge.

Not sure what is on the inside. Could be a high voltage rectifier.

It just seems the spacing would be way off... too close for very high voltages. Our DC HV Test sets do have rectifier stacks, but none with hats on them. (Hats being the 'no-pointy-surface' rings).

JesperMP · Mar 31, 2011

Per step there would not be such a high voltage difference.

To me it looks like there is 30 mm between each ring. That could be 150 kV all in all.

JesperMP · Mar 31, 2011

The parts on the inside also have a similar step-by-step insulation.
Each step has a ceramic isolator plus some plasticy (yellow color) guide pin.

JesperMP · Mar 31, 2011

rdrast said:
Our DC HV Test sets do have rectifier stacks, but none with hats on them. (Hats being the 'no-pointy-surface' rings).

Corona isnt such a problem for a short-term test. It is the long-term damage from the ozone that must be averted for a permanent installation.

OT: What is this thing?

rdrast

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