I need to control and regulate a high voltage power supply of 130 KV using Aruino Mega. Can one help me on how to do that, particularly, this high voltage isolation.

 

You need to divide down the 130kv to 3V or something the Arduino can measure.
I don't know if it needs isolation.
How is the 130kv made?
How is it turned on/off adjusted?
More information.

 

Do you already have a commercial-made HV supply, which you would like to control via one of the available digital interfaces?
For instance RS485 or ethernet?

Or you want to design yourself a digitally controlled HV supply from the ground up?

 

How is the high voltage generated?

Over what range of voltages does the adjustment need to cover?

What is the output current capability of the original power supply capable of?

What is your expected load expected to look like?

 

Usually a design process starts with determining what the design needs to do, followed by some development of a process to achieve that goal, THEN followed by a selection of equipment to achieve that goal..
Scaling the measurement to a voltage more convenient to actually measure will be quite a challenge. Just the physical arrangement of a voltage divider will be a very big challenge, given that such a voltage can strike an arc at 13 inches, based on some standard setup.

 

I believe that the TS has gone AWOL.

 

AWOL.

Good, it was a bad project from the start.

 

We certainly did pose a few difficult questions, though.

 

Do you already have a commercial-made HV supply, which you would like to control via one of the available digital interfaces?
For instance RS485 or ethernet?
Or you want to design yourself a digitally controlled HV supply from the ground up?

I have A commercial power supply from Gamma company.

 

Does it have a digital interface like USB, RS485, ethernet, CANOpen or other?

 

Now some Very specific questions: just WHAT is to be controlled (Voltage, current limits, ON/OFF?? and what is to be measured: Voltage, or current, or frequency?? Is one side of the HV power tied to earth common?? OR NOT??
These would normally be monitored for most power supplies at any voltage or power level.

 

@amn.hassan
What is your experience with 130000 volts supplies ?

 

No

Does it have a digital interface like USB, RS485, ethernet, CANOpen or other?

No it have not

 

Consider that you are asking us to develop controls and instrumentation for a seriously high voltage power supply , AND YET YOU HAVE NOT ANSWERED ANY OF MY VERY BASIC QUESTIONS AS TO WHAT IS TO BE CONTROLLED. Your information states that you are a Educator / Researcher , which implies that you are educated enough to understand the questions that are asked.

So now one more question: Do you even respect us enough to at least respond to our questions????
You will get no assistance from me until the questions are answered.

 

Consider that you are asking us to develop controls and instrumentation for a seriously high voltage power supply , AND YET YOU HAVE NOT ANSWERED ANY OF MY VERY BASIC QUESTIONS AS TO WHAT IS TO BE CONTROLLED. Your information states that you are a Educator / Researcher , which implies that you are educated enough to understand the questions that are asked.

So now one more question: Do you even respect us enough to at least respond to our questions????
You will get no assistance from me until the questions are answered.

So Sorry for any delay in reply. Now I'm out I'll back home on next saterday. Then I can give you full information.
Thank a lot for your notefications

 

Thank You. I await your response.

 

To repeat the question from @drjohsmith

As a moderator: What, if any relevant experience have you had with high voltage of this type.

 

Hi DickCappels ,

This looks like a good time to tell you a story. You and other know me.
Years ago, I was designed early computer monitors. (pre DOS)
In the lab was Carol Went who worked on early TVs. He made a CRT tube out of a chemist beaker, because CRTs were not a thing yet.
Also Dr. Webb who worked on RCA's experimental color TVs. Thank God RCA's method is not used today.
There was Jim Webb, some technicians and myself.
We all were working on different HV projects.
Dr. Webb was having a bad day. He got shocked several times. He would slap the floor with his shoes and howl like a hurt dog. He went to empty his bladder because you really don't to get shocked with wet trousers.
While he was gone, I explained to everyone that I could tell exactly what voltage Dr. W was working on by the sound he made. I gave examples of different howls.
Ten minutes later Dr. W got into the HV again and howled.
I calmly said 12.751kV. The lab emptied in a hurry. I looked at Dr. Webb and said "Must be break time."
RonS.

 

There is a whole lot of difference between 12.75 Kv and 130Kv. Well, I had a CRT in a TV from 1951. AND I had a CRT in a radar indicator from 1944. So they have been around a long while And I was doing tricks with 12Kv@60Hz back in grade school, and never got shocked. Safety is being aware of the hazards and knowing what to do and what not to do. The problem is that 1t 130 KV there is a whole lot more of what not to do.
AND I really wonder about how the TS IS going to sample that voltage.

 

CRT power supplies have a limited current. The larger ones I made have a good current limit. 40kv is the highest I made for CRTs.
Now that I think about, I remember an x-ray machine at 110kv. I don't remember the current, but it must have been high.
I worked broadcast transmitters for 6 years. The main supply was 6kv to 10kv but the power limit was 35kWatts. That is impressive when it gets out of control.
I worry when I see youtubes of kids playing with neon sign transformers.