Hitachi Energy Ltd

Hitachi Energy Switzerland Ag

Urmil Parikh

Michael Stanek

Soumya Kanta

Mehulbhai Ghanshyambhai Sonagra

A method to detect an electrical making instant for a coupled load is provided. A measured terminal voltage is obtained for each phase of one or more phases of an electrical equipment from a voltage measuring device, during an energization operation of the electrical equipment through a switching device. Further, circuit configuration parameters associated with the electrical equipment is obtained. A processed voltage is determined, for the one or more phases of the electrical equipment based on one or more of the measured terminal voltages of the electrical equipment and a mapping table, which comprises a mapping between the circuit configuration parameters and a computation to be performed on the measured terminal voltage(s). An electrical making instant of a pole of the switching device associated with a phase of the one or more phases is determined based on the processed voltage for monitoring the energization operation of the electrical equipment.

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LUDVIKA, Sweden

Urmil Parikh