10kV zero sequence current transformer polarity testing device

The utility model discloses a 10kV zero-sequence current transformer polarity testing device, which comprises a 10kV zero-sequence current transformer (2), and is characterized in that a secondary output end of the 10kV zero-sequence current transformer (2) is connected with an L end (11) and an N end (3) of a secondary terminal of a switch cabinet through a secondary winding lead (1) of the 10kV zero-sequence current transformer; the insulated wire (8) is arranged in the 10kV zero-sequence current transformer (2) in a penetrating manner, and two ends of the insulated wire (8) are respectively connected with the grounding terminal (9) and the polarity test terminal (7) of the 10kV zero-sequence current transformer; a battery (5); and the positive electrode and the negative electrode of the direct current ammeter (6) are respectively connected with the L end (11) and the N end (3) of the secondary terminal of the switch cabinet. The device is simple in structure, high in safety and capable of saving manpower a