FIELD: electrical engineering.
SUBSTANCE: according to the method, the voltage is measured on the off phase, non-recursive filtering of the voltage measured on the off phase is carried out, the voltage component of damped free oscillations is determined, the degree of attenuation of free oscillations is calculated, it is compared with the threshold value, and when the degree of attenuation of free oscillations decreases below the threshold value, a reclose acceleration signal is generated.
EFFECT: increase in resistance to emergency disturbances while simplifying the technical implementation.
2 cl, 1 dwg
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