...they use a number of isolating transformers to provide zoning of the sub systems....
I haven't seen this on many ships (and I have seen an awful lot of them). I think warships have generation/distribution systems that can be split in multiple ways in order to maximise redundancy so multiple transformers are for redundancy rather than deliberately creating zoning of subsystems. The only ships I have seen transformers deliberately introduced as isolating transformers is on large container ships with significant refrigerated container load since the refrigerated containers, being located on deck to allow the heat to be dissipated, tend to be rather more susceptible to faults. The container sockets are therefore sometimes provided with isolating transformers for this reason. Isolating transformers on other ships are a rarity.
...they use a number of isolating transformers to provide zoning of the sub systems....
I haven't seen this on many ships (and I have seen an awful lot of them). I think warships have generation/distribution systems that can be split in multiple ways in order to maximise redundancy so multiple transformers are for redundancy rather than deliberately creating zoning of subsystems. The only ships I have seen transformers deliberately introduced as isolating transformers is on large container ships with significant refrigerated container load since the refrigerated containers, being located on deck to allow the heat to be dissipated, tend to be rather more susceptible to faults. The container sockets are therefore sometimes provided with isolating transformers for this reason. Isolating transformers on other ships are a rarity.
