AC current sensing 2

[checonbill]

Hi
I am looking for a current sensing device with a response time of 100 ms or less that will be able to sense up to 600 amps this will be interfacing with an automation controller.Any input will be helpful

Thanks

 

[VladimirM]

Hello Slava,

VladM is me - I am on

http://www.electrik.org

also

Best Regards.
Volodya

 

[Skogsgurra]

Vladimir,

Yes, of course, there is a small leakage reactance also in a Rogowski coil. But not significant for the result. As you know, every conductor has some inductance, so you can hardly avoid it.

The standard CT works with ampereturn balance. The Rogowski does not. So, I do not hink they should be compared the way you do. But, you are right in the observation that removal of iron from a CT makes it similar to a Rogowski coil. The same way as a transformer turns into a near short if you remove the core - if you get my drift. Correct observation, but can confuse those not in the know and attract lots of unecessary comments. We have had enough of that in other threads.

Gunnar Englund

http://www.gke.org

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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[VladimirM]

Skogsgurra, thank You for the education.

 

[ScottyUK]

Slava, Vladimir:

I have just had a qick look at the link to electrik.org and I didn't even know where to start with the Cyrillic alphabet. I'm am now even more impressed at your language skills than I was previously.


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If we learn from our mistakes I'm getting a great education!