case300 problem

[naime ahmadi]

Hi,
I have a question about 300 bus system. When I opened the case300, in bus
data I saw 1190 as bus number. or in branch data, bus 9001 is connected to
9005. As case300 has only 300 bus so what is 1190 and 9001?
How can I fix this case?
Thanks,
Naime