IEEE 39-bus modified test system

The IEEE 39-bus modified test system contains 49 buses, 32 transmission lines, 24 transformers and 10 generators. It has 19 constant impedance loads totaling 6097.1 MW and 1408.9 MVAr. All the generators are equipped with an IEEE type-1 exciter and a simple turbine governor, except generator 39 which is an aggregation of a large number of generators and is considered not to have a governor.

Download Files

  1. IEEE 39-bus modified test system (pdf, emf)
  2. PowerWorld Files (pwd, pwb) * Simulator 17 or newer
  3. DIgSILENT Files (pfd)  *  PowerFactory 15.1 or newer