Re: Putting two potential transformers in series

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net> 

Shouldn't have any problems wiring them in series.  As you say, the BIL is
much higher.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, December 18, 2003 9:16 PM
Subject: Putting two potential transformers in series


 > Original poster: "Rick Richter" <rrichter1-at-houston.rr-dot-com>
 >
 >
 >
 >      Hi all,
 >
 >      I have access to a couple 7.2 KV potential transformers and was
 > wondering if I could wire their secondaries in series to get 14.4 KV,
which
 > seems to be a more desirable voltage to use for coiling. I know this isn't
 > a good idea for neon transformers, but since potential transformers have a
 > Basic Impulse Level (BIL) rating of around 100 KV, would there still be
the
 > possibility of flashover internally like with NSTs? I realize the I in BIL
 > stands for impulse, but at 7.2 KV maybe there's sufficient internal
 > insulation to wire them in series without the flashover risk. Anyone have
 > any experience in this area?
 >
 >
 > Thanks in advance,
 >
 > Rick
 >
 >