Ключевые слова:
Instrument transformers, Transformers, Electronic equipment and components, Electrical equipment, Induction-voltage regulators, Electrical measuring instruments, Electrical protection equipment, Single-phase transformers, Rated frequencies, Environment (working), Secondary, Primary, Ratings, Rated voltage, Voltage, Temperature-rise limit, Classification systems, Electrical insulation, Windings, Overvoltage tests, Withstand voltage, Impulse-voltage tests, Electrical testing, Partial discharges, Capacitance, Dissipation factor, Leakage paths, Pollution, Ceramic coatings, Mechanical testing, Type testing, Marking, Accuracy, Errors, Test equipment