Author Topic: Counterpoise? Need help!  (Read 2257 times)

Offline antoine_z_h

  • High Voltage Enthusiast
  • *
  • Posts: 9
  • Karma: +0/-0
    • View Profile
Counterpoise? Need help!
« on: June 22, 2018, 12:23:41 PM »
Hi Guys.,

So I have SSTC2 now, working and operational, and I get feedback thru a current transformer, but unfortunately I don't have any Good Ground so sometimes my secondary feedback wire spark inside the CT, my friend Chris advised me about counterpoise, which would help grounding my coil ..


Any idea how to make that at home ? Can I use aluminum foil sheet ? or reflective car sunscreen?


Sunscreen
« Last Edit: June 22, 2018, 10:07:29 PM by Mads Barnkob »

Offline Hydron

  • Administrator
  • High Voltage Engineer
  • *****
  • Posts: 315
  • Karma: +11/-0
    • View Profile
Re: COUNTERPOISE ??? NEED HELP
« Reply #1 on: June 22, 2018, 01:08:08 PM »
Aluminium foil would work. The car windscreen thing probably has a very thin layer of aluminium - maybe too thin to be useful, and tricky to get a good connection.

I think most people use "chicken wire" mesh or similar as it is more durable and easier to deal with than big bits of foil. Note that the holes are _not_ a problem for this use.

Offline antoine_z_h

  • High Voltage Enthusiast
  • *
  • Posts: 9
  • Karma: +0/-0
    • View Profile
Re: COUNTERPOISE ??? NEED HELP
« Reply #2 on: June 22, 2018, 02:08:23 PM »
Okay so I may use chicken wire , or a mesh with tighter holes, would both work ?




Also please could you tell me, how to apply that to my device ? I mean do you want me to spread a sheet of the mesh under my coil (lets say 1M X 1M ) and connect the secondary ground to it ?

thanks,

Offline profdc9

  • High Voltage Engineer
  • ****
  • Posts: 241
  • Karma: +12/-0
    • View Profile
Re: COUNTERPOISE ??? NEED HELP
« Reply #3 on: June 22, 2018, 03:09:34 PM »
Either will work.  Even if the counterpoise was a loop of wire on the floor with spokes from a center point, the capacitance would be a good fraction of a fully filled mesh because the charge tends to be concentrated on the edge of the counterpoise.  However, it is still worth using chicken wire rather than a loop of wire as its cheap and still given you more capacitance.

Dan

Offline antoine_z_h

  • High Voltage Enthusiast
  • *
  • Posts: 9
  • Karma: +0/-0
    • View Profile
Re: COUNTERPOISE ??? NEED HELP
« Reply #4 on: June 22, 2018, 03:58:34 PM »
can you tell me how to apply that in real life ?

I mean do you want me to spread a sheet of the mesh under my coil (lets say 1M X 1M ) and connect the secondary ground to it ?

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1398
  • Karma: +23/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: COUNTERPOISE ??? NEED HELP
« Reply #5 on: June 22, 2018, 10:05:10 PM »
can you tell me how to apply that in real life ?

I mean do you want me to spread a sheet of the mesh under my coil (lets say 1M X 1M ) and connect the secondary ground to it ?

Yes, think of it as an artificial ground plane. The idea of the ground is to have a much bigger capacitance than your topload, so there is a ratio between its size and how effective it will be. It is recommended to have roughly 10 times capacitance in the ground plane compared to the topload, that is is almost always not practically possible.

You should read this huge article I wrote: http://kaizerpowerelectronics.dk/tesla-coils/drsstc-design-guide/grounding-circuit-protection-and-emi/
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

High Voltage Forum

Re: COUNTERPOISE ??? NEED HELP
« Reply #5 on: June 22, 2018, 10:05:10 PM »

 


* Recent Topics and Posts

post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mugi30
Today at 12:27:06 PM
post Datasheet Question
[Electronic Circuits]
ritaismyconscience
Today at 08:10:27 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
Today at 07:57:48 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 07:01:44 AM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
John123
Today at 01:01:25 AM
post Re: Proper Grounding in an Apartment
[Solid State Tesla Coils (SSTC)]
ritaismyconscience
Today at 12:50:28 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
Today at 12:35:11 AM
post Re: Proper Grounding in an Apartment
[Solid State Tesla Coils (SSTC)]
09d08
Today at 12:22:31 AM
post Re: Proper Grounding in an Apartment
[Solid State Tesla Coils (SSTC)]
johnf
June 02, 2020, 09:25:51 PM
post Proper Grounding in an Apartment
[Solid State Tesla Coils (SSTC)]
09d08
June 02, 2020, 03:58:49 PM
post Re: 180kV ( 20cm ) Cockroft-Walton - ZVS Driver - RF Remote Control
[Voltage Multipliers]
davekni
June 02, 2020, 06:50:52 AM
post 180kV ( 20cm ) Cockroft-Walton - ZVS Driver - RF Remote Control
[Voltage Multipliers]
TheMaxii2007
June 02, 2020, 05:52:14 AM
post Re: Mazilli ZVS Driver Modification Problems
[Transformer (Ferrite Core)]
davekni
June 02, 2020, 04:53:24 AM
post Re: Reverse engineering a big old American smoke detector
[Radioactive Sources]
TheMaxii2007
June 02, 2020, 04:19:02 AM
post Re: Neon transformer
[Transformer (Iron Core)]
MRMILSTAR
June 01, 2020, 11:55:28 PM
post Re: Neon transformer
[Transformer (Iron Core)]
Mads Barnkob
June 01, 2020, 08:34:10 PM
post Re: Neon transformer
[Transformer (Iron Core)]
ritaismyconscience
June 01, 2020, 07:58:20 PM
post smallest iron core high voltage transformer ?
[Transformer (Iron Core)]
ElectroXa
June 01, 2020, 05:50:47 PM
post Re: Portable Q(uarantine)CW Tesla Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
June 01, 2020, 05:27:08 PM
post Neon transformer
[Transformer (Iron Core)]
Iyacht
June 01, 2020, 10:02:58 AM
post Re: Mazilli ZVS Driver Modification Problems
[Transformer (Ferrite Core)]
Andrew321
June 01, 2020, 03:38:05 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
June 01, 2020, 03:07:36 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Max
May 31, 2020, 11:59:47 PM
post Re: Servomex CO2 analyser
[Electronic Circuits]
erlendse
May 31, 2020, 11:05:19 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 11:03:45 PM
post Re: Please help me find a replacement (choke?)
[Beginners]
boxermick
May 31, 2020, 09:25:36 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 09:25:26 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 09:19:32 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 09:12:09 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
May 31, 2020, 09:10:39 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 09:00:46 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 08:57:42 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 08:50:17 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 08:40:02 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 08:32:03 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 08:20:07 PM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
May 31, 2020, 08:13:21 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 07:45:04 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 07:42:19 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
davekni
May 31, 2020, 07:32:32 PM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
May 31, 2020, 07:23:35 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 07:05:04 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
sgtraf
May 31, 2020, 06:41:13 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 31, 2020, 05:54:56 PM
post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mugi30
May 31, 2020, 04:15:17 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
May 31, 2020, 04:01:14 PM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
ritaismyconscience
May 31, 2020, 07:09:09 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
May 31, 2020, 06:02:30 AM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
MRMILSTAR
May 31, 2020, 05:14:40 AM
post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
davekni
May 31, 2020, 03:54:03 AM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal