METHOD FOR AUTOMATIC CONTROL OF VOLTAGE IN ELECTRICAL NETWORK WITH TIME DELAY OF BEGINNING OF CONTROL Russian patent published in 2016 - IPC H02J3/12 

FIELD: electric power engineering.

SUBSTANCE: use: in electric power engineering. According to method ratio is set between actual voltage deviation from the normal value in all consumers connected to electric mains, and voltage transformer secondary winding or booster transformer, supplying electric network, setting time delay of actual ratio between voltage deviation from normal value in all consumers and voltage transformer secondary winding or booster transformer from specified ratio, actual voltage in all consumers connected to electric mains. Determined actual deviation of measured voltage from normal value in all consumers, actual voltage of secondary winding of transformer or booster transformer, actual ratio of voltage deviations from normal value in all consumers and voltage transformer secondary winding or booster transformer. If such actual ratio in preset time differs from specified ratio, time is counted equal to specified time actual ratio between voltage deviation in all consumers from normal value and voltage transformer secondary winding or booster transformer from specified ratio. If at end of time counting actual ratio between voltage deviation from normal value in all consumers and voltage transformer secondary winding or booster transformer deviates from specified ratio, then obtained value of this deviation is used as correction signal.

EFFECT: technical result is increase of quality and stability of control of voltage in electric network.

1 cl, 1 dwg