Surge Arrester Ratings
Surge Arrester Ratings
(OP)
Hello,
Need to know what surge arrester rating to apply to a 2.4kV winding on a transformer. So would the duty cycle rating be 1.38kV (2.4kV/sqrt3)well a little higher than operating voltage say 3kV or 6kV duty? And would the MCOV rating be 2.55kV or 5.1kV???
thanks,
not used to lower voltages
Need to know what surge arrester rating to apply to a 2.4kV winding on a transformer. So would the duty cycle rating be 1.38kV (2.4kV/sqrt3)well a little higher than operating voltage say 3kV or 6kV duty? And would the MCOV rating be 2.55kV or 5.1kV???
thanks,
not used to lower voltages






RE: Surge Arrester Ratings
RE: Surge Arrester Ratings
Thanks!
RE: Surge Arrester Ratings
With the solidly grounded system a fault on one phase doesn't raise the voltage to ground on the others, but on an ungrounded (capacitively grounded) system a fault on one phase will cause the phase to ground voltage on the other phases to approach the phase-phase voltage.