Re: Multisection HV terminal (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 22 Nov 2004 11:30:54 -0800
From: Jim Lux <jimlux@xxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Multisection HV terminal (fwd)

At 11:05 AM 11/22/2004 -0700, you wrote:
>Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Mon, 22 Nov 2004 11:46:03 -0500
>From: Luc Benard <ludev@xxxxxxxxxxxx>
>To: hvlist@xxxxxxxxxx
>Subject: Multisection HV terminal
>
>Hi,
>
>In big HV lab they often used hv terminal maid of many small aluminium
>curved plate, if you want a terminal 5 to 10 feet big it's more
>practical to use this instead of a big spinning part. If the curve and
>placement of the plate is right the terminal behave more or less like a
>big single part terminal .  in the desing of these terminal you need to
>shape and place the small plates in a way that they sheild each other
>border.
>
>I try to find information on how to build them to have max performance
>without success.


I too have looked for this kind of information.  I think it's all empirical 
(someone comes up with a design that "seems to work", they build it, it 
works, and from then on, all the electrodes are built that way.  I've seen 
ones with lots of little rounded edge circular "tiles".

Take a look at this brochure from Hydro Quebec:
http://www.hydroquebec.com/technology/ireq/varennes/pdf/high-voltage_lab.pdf


>I know many of you like Antonio and other study electrostatic, Bruce
>and Rogowski profiles. May be some of you could help.
>
>I probably can find a stock of cheap serving spoon,  may be I can use
>them by bending the handle and arrenging them in a sphere shape.

I was thinking of something like pizza pans or serving platters 
epoxied/welded/soldered to threaded rod.