Patent ID: 11913984
Assignee: LS ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A device for testing insulation properties of a transformer, comprising:
a low-voltage winding part and a high-voltage winding part arranged concentrically with each other, with the low-voltage winding part
an iron core for testing combined with the low-voltage winding part and the high-voltage winding part, and adjustable in height according to heights of low-voltage winding part and high-voltage winding part, wherein the low-voltage winding part is arranged concentrically around a center iron core of the iron core for testing and the high-voltage winding part is arranged concentrically around the low-voltage winding part;
a low-voltage terminal part connected to both ends of a winding of the low-voltage winding part;
a high-voltage terminal part connected to both ends of a winding of the high-voltage winding part, and
an iron core shield part located between the center iron core of the iron core for testing and the low-voltage winding part to adjust a spacing interval between the low-voltage winding part and the center iron core, wherein the iron core shield part includes an inner insulating part arranged at a circumference of the center iron core, a shield part located at an outer surface of the inner insulating part, an outer insulating part surrounding the shield part, and a bus bar for electrical connection between the shield part and the iron core for testing.