17/30352667 DC

Partial discharges, Grades (quality), Ratings, Electrical equipment, Accuracy, Environment (working), Electromagnetic compatibility, Overvoltage tests, Windings, Electrical insulating materials, Rated current, Transformers, Electrical insulation, Electrical measurement, Temperature-rise limit, Electric enclosures, Performance testing, Electrical measuring instruments, Capacitance measurement, Dielectric measurement, Classification systems, Impulse voltages, Impulse-voltage tests, Leakage paths, Marking, Rated voltage, Withstand voltage, Type testing, Temperature, Mechanical testing, Electrical testing, Instrument transformers