Power transformer testing at Manitoba Hydro's high voltage test facility

Manitoba Hydro has constructed a high voltage test facility for full electrical testing of equipment rated up to 550 kVac and 500 kVdc. The second stage of the project is the addition of a test system for power transformers up to 310 MVA 3-phase and up to 400 MVA 1-phase. This test system is based on a voltage source converter and includes compensation to facilitate load loss tests. The paper provides some details on the various aspects of the work.