FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, in particular to electric power systems, and can be used for a transformer substation of industrial power supply. Device has been developed for switching on, off and adjusting the voltage of power transformer substations under load, at which the power and utility ratios for the power transformer of the substation and for electricity consumers are increased, the consumption current is reduced, the voltage drops and losses in the network are reduced in the starting and stationary modes of operation. Suitable area of application of the proposed device are substations of enterprises of all industries and agro-industrial complex with voltages of 35/(10–6) kV and (10–6)/0.4 kV and voltage deviations in a narrow range.
EFFECT: providing a sinusoidal voltage at the input of a power transformer at the rated mains voltage, as well as turning the transformer on and off with a voltage at its input not exceeding the mains voltage.
1 cl, 1 dwg
