Hi.
If we discuss about GOOSE messages, I would like ask your opinion about:
Interlocks between bays by GOOSE only or by HW also.
A) By Software (i.e. GOOSE). Safety interlockings maybe we should do them by hardware as well.
Maybe it's not easy to be iteroperable here, some manufacturers base the SW interlocking on the "SPEED" of information (position etc), some others don't care about the speed..
Used GOOSE messages for BFP in MV swg.
A) The standard is forseen to send protection signals via GOOSE. I agree with you, unless you are 18 years old, used to "GOOSE" with the Playstation from the real beginning (I am not

), I also would start on MV stations. Just a feeling, not a mistrust on the standard. Anything new, should be "digested". If I we have some years of good experience on the MV side, we have the necessary experience to "promote" it on the HV level.
Automatic transfer switch ( between two infeeds and couplers for example) by GOOSE messages only.
A) I see no problem on that.
What do you think about used IEC61850 ( in future) for meas data, for example send voltage from BB VT to bay's via 61850 network
A) This is already available in the so called IEC61850/9/2 (I think) standard, where the analog quantities are send via ethernet. The protection relays will not need A/D concerter and not even transformer cards..... Test equipment will be as big as a credit card...