Fluke 323 Clamp Meter Measure Current in in 20KV line.

[i200yrs]

Hello All...would like to ask, I want to measure a current using Fluke 323. The line have 20KV 500mA capacity....Is it safe that cannot damage the clamp meter? Thanks in advanve.

 

[KlausST]

Hi,

is the 20kV wire properly isolated? If yes, then I see no problem.

If no, then don´t get close to the 20kV at all. Neither with nor without the Fluke
20kV is nothing to play with. It´s lethal.


Klaus

 

[FvM]

Besides required safe isolation of the cable, Fluke 323 has 0.1A resolution. Not well suited to measure a current of 0.5A maximal.

 

[i200yrs]

Hello All...thanks for the inputs...just an update we are using Fluke 375...we got 8A reading....the power supply got 22.3KV and 8.4KW. So by mathematics the max current should be 377mA only....So something wrong with the load or the supply....Need to check further, really thankful for your inputs....

 

[KlausST]

Hi,

If your high voltage is AC (not DC), then you need to take cos(phi) into account with your true power calculation.

Klaus

 

[i200yrs]

Hi,

If your high voltage is AC (not DC), then you need to take cos(phi) into account with your true power calculation.

Klaus

It's DC...thanks

 

[KlausST]

Hi,

Then something is wrong. Either voltage measurement, current measurement or power measurement.

Klaus

 

[i200yrs]

It could be a true reading but something wrong with our equipment, either our PSU or the load. Because our system detect over current error...The reason i double check the current flow from the psu to the load...thanks

 

[FvM]

Not sure about your measurement setup. Clamp meter measurements can be only made in a single conductor, not e.g. in a shielded HV cable if the shield is connected at both ends. Clamp meter must be zeroed for accurate DC measurements.

 

[i200yrs]

Thanks to all...we found the load (we called it ppm) are the one pulling the current up to 8A. Thanks again for all motivation and inputs.