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  • Looking for help on high current measurement

    RenyV

    Member

    Updated: Oct 26, 2024
    Views: 1.0K
    Dear Team,

    I saw your forum, its great. I am looking for a way to measure the welding current in a Spot Welding machine.

    Its max current can go upto 45 KA and this current will flow for an instant (fraction of a second).

    Can you please suggest some best possible way? 😀

    Thanks in advance.
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  • RenyV

    Member • Jan 12, 2011

    RenyV
    Dear Team,

    I saw your forum, its great. I am looking for a way to measure the welding current in a Spot Welding machine.

    Its max current can go upto 45 KA and this current will flow for an instant (fraction of a second).

    Can you please suggest some best possible way? 😀

    Thanks in advance.
    Hi,

    To add more, I find out some possible solutions

    1. Using the CT method, but I guess VA burden would be very high

    2. Hall effect current sensing method, But I doubt if it can measure upto 45KA

    Please suggest.

    Thanks. 😀
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  • freak16

    Member • Jan 13, 2011

    Hello
    Welcome to CE..
    I think you should go for current transformer it is the most apt device..and donot worry if transient current amount to 45 kva that too for few moments.
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  • nsiva007

    Member • Jan 13, 2011

    Yes CT will do.. But not pretty sure if you can measure it that instantaneous ...!
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