Author Topic: 500kV High Voltage prob design (Reverse engineering)  (Read 653 times)

Offline highvoltageguypk

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500kV High Voltage prob design (Reverse engineering)
« on: March 21, 2022, 03:29:15 AM »
Hello everyone,

I want to design a high voltage probe that could help the users of high voltage generators. I need suggestion from you people about this because I found this probe very compact and robust (I hope it will be after manufacturing) as compared with other commercial probes (by North Star https://www.highvoltageprobes.com/products/high-voltage-probes/ ).
My plan for this is:
1. Do a theoretical calculations on paper and Ltspice (circuit simulation)
2. Design a 3D model
3. Make electrostatic simulations.
4. Transient simulation of the 3D-model
5. Fabrication method (that will be discussed later after preliminary works)

Will this be helpful for the users of high voltage because what I think is that diagnostic of any high voltage system should be accurate and reliable. I have attached the research paper regarding this probe. Thanks. :)

Regards,
Umar
« Last Edit: March 21, 2022, 03:31:30 AM by highvoltageguypk »
highvoltageguypk :-)

Offline huntergroundmind

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #1 on: March 21, 2022, 05:26:31 PM »
https://www.osti.gov/servlets/purl/6697620 pages 47 -53. There is description of design of 100 kV 2ns DC coupled probe. I think it could be helpful for You :)
« Last Edit: March 21, 2022, 05:31:15 PM by huntergroundmind »

Offline highvoltageguypk

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #2 on: March 21, 2022, 08:43:49 PM »
Thanks huntergroundmind for your feedback. I am not able to download this report, can you please share this in pdf. Thanks.
highvoltageguypk :-)

Offline huntergroundmind

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #3 on: March 21, 2022, 09:04:17 PM »
Here it is.

Offline highvoltageguypk

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #4 on: March 22, 2022, 03:13:19 PM »
Thanks. Let me simulate with Marx generator and then I will made a comparative analysis on it (using Ltspice). As, for as the voltage is concerned 100kV will be a lower value as I am targeting a generalized probe (more than 100kV and up to 1000kV). I will update the results soon.
highvoltageguypk :-)

Offline highvoltageguypk

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #5 on: March 22, 2022, 08:08:20 PM »
I go through 100 kV probe article and I don't find it compact and easy to made. The main reason is that they are using capacitors (40pF-5 kV) to design this. This can be seen in the picture attached.
So, I am targeting 500 kv design due to compact design and metallic discs. My main goal right now is to complete the simulation work for this probe. So, in the next discussion I will upload my 3D design (using SolidWorks).
Thanks. :)
highvoltageguypk :-)

Offline Benbmw

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #6 on: March 28, 2022, 06:06:18 PM »
Umar,

Interesting project idea! It sounds like you want it to have a bandwidth in the 10's of MHz, any specific range? Also if I understand correctly, it would be a capacitive divider probe and not suitable at low frequency or DC?

I will be interested to follow this and would like to help out if I can. I have access to a manual lathe and mill as well as ANSYS EM simulation software, let me know if there are any design or prototyping steps I can help with.

-Ben

Offline TizianoBll

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Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #7 on: March 29, 2022, 04:14:16 PM »
Hi, if you need to measure also high frequencies (MHz) this playlist could be usesful:
https://youtube.com/playlist?list=PLZSS2ajxhiQCAQ6gIp6s-WoKiIEb1gHPD

(40kV high voltage frequency compensated probe...part 1

High Voltage Forum

Re: 500kV High Voltage prob design (Reverse engineering)
« Reply #7 on: March 29, 2022, 04:14:16 PM »

 


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