Test currents applied by a loop tester

[Guest 004]

Can anybody advise how much test current is applied when using a 1552 meggar on Zs.

Somebody suggests that it could be as high as 6 amp's?

Thanks

 

[Sintra]

Acorrding to meggers technical specifications the high current loop test is at 25A.

 

[telectrix]

25A on hi. 15mA on no trip. the 25A current sometimes causes breakers to trip.

 

[Plonker 3]

Here you go, information found on a simple internet search

http://www.********************/downloads/datasheets/299_megger_1500_series_datasheet.pdf

damn filter.

 

[Farmelectrics]

surely it tells you this in the manufactors book

 

[ackbarthestar]

This is a live test so i think the instrument allows a 40ms window of 25A or 15mA to flow into the machine rather than generating it itself.
However, some testers will do a N-PE loop test where the instrument generates the necessary current.

 

[SirKit Breaker]

If you look in GN3 it gives the spec for this test kit, irrelevant of make and model, it must induce a minimum current for a minimum length of time. I will let you look it up. I am not trying to be clever, but GN3 will answer all of the basic test and inspection questions asked, and if you are delving into the insp and test world, treat yourself, its only about £25.

Cheers...........Howard