[Elecraft] variac question

[ke4rg at arrl.net]

Just to be safe, you might want to check the outlet into which you have connected this variac.  If the hot and neutral are reversed, of if the neutral and ground are not bonded in the distribution panel you might see problems like this!  I have a similar inexpensive variac that I use on my home-brew hot-wire cutter.  I haven't poked around with volt meter, but I haven't been bitten either/yet!
Ken - ke4rg

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John Cooper
Sent: Sunday, January 25, 2015 12:33 AM
To: tesla reflector; Elecraft reflector
Subject: [Elecraft] variac question

I have a 2000VA chinese variac off ebay looks similar to a staco(.  No schematic.  It works fine when used normally.  Varies my voltage from 0-148V.  But when its switched off and left plugged in I have 0 V between and neutral and 120V between hot and ground and neutral and ground.  Is this normal for a variac?

I was hooking up a electromagnet @5V with the variac off but plugged in and I got a 120V bite even when the dial is all the way to 0.  That s why I started checking it. Ive been running my coil off it with no problems.


John Cooper WT5Y
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