. . . If I can nail the Xformer I'm sure that the other switchgear will be much easier (famous last words).
Looking fantastic! Conservator and everything so far is superb detail.
I think you are only sort of correct. The switchgear (breakers, manual switches) is only a little more complex than a transformer but smaller - I'd say its a wash overall which is more work to model, a simple, dead-tank breaker (the type of make unless it is new technology) or a transformer.
But for me what was always the most difficult to model, well, was the buswork itself (the skeletal frame that stands over and around the transformers and breakers and holds the HV and MV buses up, etc., and the attached manual switches and all the tiny little ancillary equipment. There is just a lot of it and its more complex than it one might think. Most of the insulators in a substation are in the buswork.
I have attached a.pdf of aseminar workshop slide set that has pictures ofalot of this stuff. You probablyknowall this stuff but in case the pictures help . . . .
I agree with Lee, the structure supporting the the buswork, switches, etcetera, can be very complicated. If you want something less complicated, low profile bus work can be done, but that is a more modern look. Something like Page 106 and 107 in Lee's excellent presentation. I don't know if there is a different name; we called it low profile.
It's funny, I started my career in telecom for a power company 38 years ago this Saturday, then I moved to the fault protection and controls in substations and power stations. I was laid off after 20 years. I then found a job with a Telecom, taking me back to my early career, and have worked in telecom for almost 18 years now. When I worked in the field for this telecom, I often went in the substations for trouble calls. I can't get away form it. 
