hi
in MV switchgear/24kv
in power frequency withstand voltage test -Ud:50kv for 1 min - according to IEC 60071-1
what is acceptable leakage current for power frequency voltage test?
or how much should be the maximum leakage current?
thanks for your help.
hi
acc to IEC 62271-200 / 6.2.5
for insulated test in MV switchgear should be power frequency test voltage of 150% of the rated voltage for 1 min at an altitude of 1000 meters above sea level. that in 20kv it will be 50kv for 1 min.
my question is here ,altitude of above see level in our city...