Re: XFMR Connection Question
From: Alfred A. Skrocki[SMTP:alfred.skrocki-at-cybernetworking-dot-com]
Sent: Thursday, June 26, 1997 2:21 PM
To: Tesla List
Subject: Re: XFMR Connection Question
On Sunday, June 22, 1997 6:10 PM mikey1
> I am considering the question of the connecting three different neon
> sign transformers with the following ratings to power one coil:
> 12,000V 30mA.
> 9,000V 30mA.
> 6,000V 30mA.
> My question is, would it be possible to connect all three in parallel?
> If I did so, would I expect 9,000V at 120mA., or have I been around the
> solder too much?
You've been around the solder too much! NEVER connect differing
voltage transformers in parallel or series! Most probably what would
happen if you connected those transformers in parallel is the 6KV
transformer would blow since it would have less insulation on the
secondary windings. Also considder that if you connect two differing
voltage transformers in parallel the higher voltage transformer will
be effectively driving the lower voltage transformer backwards while
it is also being driven forwards by the mains. IT WILL COOK the lower
> Another question is would I be able to connect them in series? If so,
> what would be the resulting output?
IF the current rating is the SAME you can connect two differing
voltage transforers in series ONLY IF their insultation can hold
under the higher combined voltage.
When connecting transformers in series or parallel you should try to
match the transformers as closely as possible and make sure that they
are phased correctly!
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Alfred A. Skrocki
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