bus zone protection basics
bus zone protection basics
(OP)
hello, can someone please advise the basics of bus zone protection on 11kV 3ph AC switchgear?
As far as I understand a CT on the bus riser (next to bus coupler) for an O/C relay is sufficient. is this correct?
As far as I understand a CT on the bus riser (next to bus coupler) for an O/C relay is sufficient. is this correct?






RE: bus zone protection basics
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Sometimes I only open my mouth to swap feet...
RE: bus zone protection basics
RE: bus zone protection basics
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It may be like this in theory and practice, but in real life it is completely different.
The favourite sentence of my army sergeant
RE: bus zone protection basics
When you say 'CT in the buscoupler panel is sufficient' I guess you are talking of Partial diffrential protection that is widely used as an inexpensive bus zone protection for medium voltage switchgears. I agree with you and think that the arrangement is very effective for the money it costs.