VOLTAGE SENSOR FOR POWER NETWORKS

Voltage sensing coupling plug (1) for sensing an elevated voltage of a high-voltage or medium-voltage separable connector (2) in a power network of a national grid, the voltage sensing coupling plug comprising a plug body (160) and a voltage sensor (10). The plug body comprisesi) an insulating housing (190) forming a first elongated space (210) for accommodating the voltage sensor (10, 11) and a second elongated space (220), extending orthogonally to the first elongated space (210),ii) a conductive contact piece (230), at least partially arranged in the second elongated space (220), for mechanical and electrical connection to a contact element (140) on elevated voltage of the separable connector (2), andiii) a mating portion (280) protruding from the second elongated space (220) and shaped suitably to be mated with the separable connector (2).The voltage sensor comprises a voltage divider (70) for sensing the elevated voltage of the contact piece (230). At least a portion of the voltage divider is accommodated in the first elongated space (210).