... test system The system is composed of variable frequency power supply, excitation transformer, reactor and voltage divider. AC Voltage withstand test ... 35kV(300mm2) cable 2KM 3. 35kV transformer,switchgear, 4. 10kV motor,transformer 5. 600MW or lower generator etc. ... test, transformer, switch tests.Please tell us your test requirements, we will propose suitable system for you. Portable AC test system