Fuse-switch operation
Fuse-switch operation
(OP)
I wonder if a 24 kV fuse-switch can be used to get external "trip/open" signal from a digital relay? or a "remote close" command? The application will be inverter supplied transformer, where the fault current won't exceed rated current
I haven't seen that before as I always deal with CBs for MV applications.
I haven't seen that before as I always deal with CBs for MV applications.






RE: Fuse-switch operation
This is the standard arrangement.
RE: Fuse-switch operation
RE: Fuse-switch operation
1) The switch is load break type and
2) The fault current is not more than the switch rating
3) The fault currents are always low power factor type (say 0.2) and the switch is capable of opening such low power factor currents with a magnitude equal to the expected fault current from the inverter. Breaking reactive currents is more difficult.
Rompicherla Raghunath
RE: Fuse-switch operation
RE: Fuse-switch operation
RE: Fuse-switch operation
https://library.e.abb.com/public/3869f7c4772f448b9...
or Google search ABB NAL