Search found 527 matches: +voltage +safety

Searched query: +voltage +safety

by DaveC
Wed Nov 06, 2002 7:32 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: safety/current limiting,ect?
Replies: 6
Views: 2539

Re: safety/current limiting,ect?

<t>Adding a fuse ahead of the circuit breaker is an excellent safety measure. <br/> <br/> One way you can control the output voltage of a Kenotron rectifier set, is to control the filament voltage. While filament control ...
by guest
Sun Nov 03, 2002 1:16 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: safety/current limiting,ect?
Replies: 6
Views: 2539

Re: safety/current limiting,ect?

hi doug
what dave says about the inductive limiting is true its ok for constant voltage but i would advise a fuse as well as a breaker as i have heard of breakers welding shut in high overcurrent so belt and braces would be good
cheers
colin
by DaveC
Sun Nov 03, 2002 8:26 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: safety/current limiting,ect?
Replies: 6
Views: 2539

Re: safety/current limiting,ect?

<t>Douglas - <br/> I would recommend use of a variac set to quite low voltage to check out your new transformer. I am presuming from your description, that this is just the transformer portion of the HV unit - 220 VAC input, and 125 kVAC RMS output, center ...
by guest
Sat Nov 02, 2002 4:56 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: safety/current limiting,ect?
Replies: 6
Views: 2539

Re: safety/current limiting,ect?

... and grid design primarily control grid amp draw it would be a good safety margin<br/> obviously the voltage you are going to run at would also affect the ballasting <br/> cheers<br/> colin</t>
by guest
Thu Oct 10, 2002 2:12 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: power supply question
Replies: 2
Views: 1745

Re: power supply question

... If your variac does more than 110v then calculate the new high at that voltage. You will have to figure the turns ratio for that trani. The power ... possible when setting up your diode string and use a few extras for a safety factor.<br/> <br/> Larry Leins<br/> Fusion Tech</t>
by guest
Sun Sep 01, 2002 1:24 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: pulsed fusor power issues
Replies: 16
Views: 4184

Re: pulsed fusor power issues

... used that way, but the main concern is to increase the <br/> operating voltage and raise the crossection of fusion<br/> without building really ... grid the onerous chore of a ultra high voltage feed thru is avoided. Safety would be easier due to the fact that the other end would be tied to ...
by Richard Hull
Thu Jul 11, 2002 2:47 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Power Costs
Replies: 3
Views: 2689

Re: Power Costs

... the load demands. In this case a total of 10uf @ 80kv (for a margin of safety)<br/> A large choke or huge current limiter resistor with a rating ... supply from a junk yard and killing himself with it.<br/> <br/> A high voltage, high current supply which would be of a modern switcher type with ...
by Richard Hull
Thu Jun 27, 2002 3:36 pm
Forum: FAQs: High Voltage
Topic: FAQ: Measuring Fusor Current
Replies: 2
Views: 4600

FAQ: Measuring Fusor Current

... like a neon sign transformer with two rectifiers for fullwave, half voltage rectification, you MUST NOT ground the case directly, but instead ... level system. Reading the system current in a manner which retains full safety grounding is ultra important. Farnsworth's team at ITT measured their ...
by guest
Mon Jun 24, 2002 1:33 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HV transformers
Replies: 10
Views: 4517

Re: HV transformers

<t>Mark:<br/> <br/> A lot of our surfing buddies out there are voltage virgins. You have to spell it out for them. Fuses would probably would ... the hazard. But the setup of a mini substation would take conciderable safety measures. I plan to enclose my capacitor bank and high voltage behind ...
by Richard Hull
Fri Jun 21, 2002 4:18 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: SAFETY FIRST !!
Replies: 2
Views: 2772

SAFETY FIRST !!

... all who would work with a fusor.<br/> <br/> Fusor's all require high voltage at moderate to high currents inorder to function. At any voltage, ... or accidental contact by anyone coming near the device.<br/> <br/> Safety interlocks, key switch operation, remote disconnect fail-safes are ...