FIELD: electricity.
SUBSTANCE: delay time for automatic reset of the main switch of the line is counted from the moment of power outage at the transformer. At the end of said counting, onset of voltage at the transformer is checked and if there is no voltage, a probing pulse is transmitted to the line, the time it takes to reach the reflection point is measured; the distance to said point is calculated and compared with distance to the point of installation of the main switch, and if the calculated distance is greater than the distance to the point of installation of the main switch, the main switch of the line feeding the transformer substation is in an on state. Using the disclosed method enables to obtain information on the on state of the main switch of a line feeding a transformer substation during power outage.
EFFECT: broader functional capabilities.
2 dwg
Authors
Dates
2014-01-27—Published
2012-08-21—Filed