AC grid side disconnects and protection

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The particular system I am considering is in the process of an upgrade, where new inverters are being added to an existing PV system. From the gird side, the circuit looks something like this:

13.2kV primary -> pad mounted 50 kVA transformer -> 4/0 URD cable to house panel -> side tap to PV system ->
PV disconnect switch with integral fuses -> 200A combiner panel -> breakers for each inverter

The the PV disconnect has integral fuses, and then is connected to a 200A rated combiner panel with over current protection for 200 A nominal current.

So my thinking is that the fuses and breaker provide redundant over current protection. Fuses are nice, but many will blow before a circuit breaker trips. Furthermore, this type of fuse is expensive. If fuses are eliminated, the breaker still provides protection to the conductors.

The conductors from the transformer are 4/0 Al, which is nominally considered a 205 A conductor. The 4/0 Al is URD cable, which may be rated for 290 A or for 315 A when ground buried. The relevant conductors from the side tap to the PV combiner is 3/0 Cu, which is nominally a 225 A conductor.

From my thinking the fuses between the taps and the combiner panel are redundant with over current protection on the combiner panel.

NEC 690 covers disconnects, over current protection.

Anyone with thoughts for discussion?

 

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Update. I talked with the inspector who normally comes when I have a ssytem to inspect. He says that my wire protection strategy is acceptable and will work. So when I get around to this project, I will reach out to his agency to schedule an inspection.