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Re: Spellman DXM70N600X3547 power supplies on ebay -70kV 8.5

... now an 8 pound USB controlled, ethernet connectable, supply with 15 new safety inputs and interlocking custom signals to a micro-controller can easily ... this "recent" mass purchase group who actually gets measured voltage pouring out of one of these gems. I hope every single one will ...
by Richard Hull
Mon Nov 21, 2016 7:30 pm
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Spellman DXM70N600X3547 power supplies on ebay -70kV 8.56MA
Replies: 145
Views: 5762

Re: HVSafety Circuit for comments

Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in space with respect to ground can store ...
by prestonbarrows
Sat Nov 19, 2016 5:17 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 790

Re: HVSafety Circuit for comments

Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in space with respect to ground can store ...
by David Kunkle
Mon Nov 07, 2016 1:49 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 790

Re: HVSafety Circuit for comments

... Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in space with respect to ground can ...
by prestonbarrows
Sat Nov 05, 2016 12:49 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 790

Re: Archived - Yet another HV power supply project

... the output to IGBT at around 30-100+kHz rate with amplitude Vp = supply voltage (in my case i used a 12v battery) making a Vp-p of 24volts. The reason ... blocking capacitor between you square wave power supply and HV tank for safety. And make sure the tank is filled with transformer oil.
by Muhammad Faidzul
Fri Nov 04, 2016 3:49 am
 
Forum: Images du Jour
Topic: Archived - Yet another HV power supply project
Replies: 11
Views: 1952

HVSafety Circuit for comments

I tend to over think safety [because I'm paranoid (in a plan for the worst, hope for the best way)] but I am ... input with monitoring of status and output. The circuit would be a TBD low voltage, powered off the Keyed System Master Switch, use NC Mushroom switches so ALL the ...
by Daryl Morning
Thu Nov 03, 2016 3:15 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 790

Re: Completion of Demo Fusor

... in any manner. Have fun doing this work (I do) but be careful - high voltage is dangerous and real fusors are lethal. Grounding a fusor chamber ... ground is valid as well as if neutral/hot have the correct polarity. Safety is your responsibility.
by Dennis P Brown
Sun Oct 09, 2016 8:16 pm
 
Forum: Images du Jour
Topic: Completion of Demo Fusor
Replies: 7
Views: 595

High Voltage Multiplier (VM) with x-former System

... completed HV multiplier de-rated using a microwave x-former (MWX); for safety, the MWX has been isolated via a HV cap (part of one stage of the voltage multiplier) and all put in a grounded metal case. In this manner, the high voltage/current ...
by Dennis P Brown
Sat Oct 08, 2016 3:23 pm
 
Forum: Images du Jour
Topic: High Voltage Multiplier (VM) with x-former System
Replies: 3
Views: 412

Re: Images of 100 kV Voltage Multiplier

... Even then I now keep that system away from my general work area for safety for testing and use. An aside: I was concerned that my high voltage probe was way off so I did pull out a digital DC supply that goes to +/- 6 kV and the ...
by Dennis P Brown
Wed Sep 28, 2016 11:41 am
 
Forum: Images du Jour
Topic: Images of 100 kV Voltage Multiplier
Replies: 7
Views: 774

Re: Images of 100 kV Voltage Multiplier

... can start to become a problem. As you are learning, producing high voltage is not that hard, the trick is a high voltage supply that can produce ... also be nice to see all that enclosed within a grounded enclosure for safety though that understandably introduces a multitude of feedthrough issues. ...
by prestonbarrows
Sat Sep 24, 2016 2:57 am
 
Forum: Images du Jour
Topic: Images of 100 kV Voltage Multiplier
Replies: 7
Views: 774
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