Westinghouse, PT Single Phase Potential Transformer, Ratio 100:1A, 50/60Hz Rated Ins Class 15L kV Full Wave Impulse Test 95 kV Primary Voltage 12000GY/6928 Thermal Rating 55C Ambient 450 VA, Cat# 1483792-E1483792-E Transformer by Eaton, Cutler Hammer or Westinghouse