Re: wet oil ??? (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 15 Oct 2003 11:48:15 -0500
From: Charles T. Pike <ctpike@xxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: wet oil ??? (fwd)

The standard test for oil uses two electrodes about 0.4" in diameter
with square ends (no radius) spaced 0.1" apart.  They are connected to a
current limited transformer with a variac to adjust the voltage.  We
typically got breakdown voltages of about 25kV.

High Voltage list wrote:

>Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Mon, 13 Oct 2003 07:31:42 +0930
>From: Matthew Smith <matt@xxxxxxxxxx>
>To: High Voltage list <hvlist@xxxxxxxxxx>
>Subject: Re: wet oil ??? (fwd)
>
>
>
>
>>Date: Sat, 11 Oct 2003 16:04:29 -0500
>>From: Godfrey Loudner <ggreen@xxxxxxxx>
>>To: hvlist@xxxxxxxxxx
>>Subject: wet oil ???
>>
>>
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>>Is there a simple test by which I can see if the transformer oil is
>>contaminated with water? Do you think the
>>oil is contaminated by water or salts.
>>
>>
>
>Cobalt chloride does a distinctive colour change when it changes it's
>hydration state.  Think it's blue but goes pink when damp, but may be
>the other way around ;-)
>
>Cheers
>
>M
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>