A: The 6-bus has fewer loops and generators, making it less numerically stiff. It converges easily, which is why it's used for teaching, not for advanced algorithm testing.
To give you an idea of what to expect in your PDF download, here is a typical representation (values in per-unit on 100 MVA base): ieee 6 bus system data pdf download
Voltage magnitude limits, power demand (MW/MVAr) at load buses, and generation setpoints. Line Data: A: The 6-bus has fewer loops and generators,
Access full-text publications and downloadable data tables for line and bus parameters from ResearchGate . power demand (MW/MVAr) at load buses
| Bus | Type | V (pu) | Angle (deg) | Pg (MW) | Qg (MVAr) | Pl (MW) | Ql (MVAr) | |-----|------|--------|-------------|---------|-----------|---------|-----------|
If your results differ wildly, check the line charging ( B ) and transformer tap ratios in your PDF.