Are there any disadvantages of using multiratio CT's for substation protection? The possibility of selecting different ratios adds ofcourse flexibiliy, but is there a negative side? Any protections that do not work well with multiratio (high impedance?)?
I'm considering using a high voltage (33 kV) fuse for protection. Can anyone suggest a good manufacturer with web-page for more information. I never used a HV fuse before.