Member • Aug 12, 2008
Is there any DIY circuit which can measure earth leakage current in mA?
The circuits should use hall effect current sensor since need not to break the earth wire.Thanks!!
Member • Aug 12, 2008
Member • Oct 15, 2010
Member • Oct 15, 2010
Member • Oct 16, 2010
Why Vipul? With a tong tester, you are not interrupting the earth cable at all, and the cable is (theoretically) at near earth potential. I'll happily wrap a tong tester around a cable to a big motor, carrying 800 or more amps, and at 240 or 380V potential, so why is it not as safe with an earth conductor. Unless the current transformer has a split core, it is necessary to disconnect the cable to install the CT. I would think it much safer to leave the earth cable alone, and just wrap a tong tester around it, irrespective of the current flow in it.d_vipulHey wkyong,
tong meter or clamp meter is a better option to measure earth leakage current up to 250A but it is not safer for currents above 250A.....
For above 250A currents you have to use Current transformer in co-ordination with ammeter.....
Hope this helps you.....
Regards,
VIPUL
Member • Oct 17, 2010
Member • Oct 17, 2010
Member • Oct 18, 2010
Member • Oct 19, 2010