Device and method for measuring steering direction of alternating-current motor

The invention belongs to the technical field of equipment maintenance, and particularly relates to a device and method for measuring the steering direction of an alternating-current motor, and the device is characterized in that the device comprises a base, a first gauge outfit, a second gauge outfit, a third gauge outfit and three binding posts, the first gauge outfit, the second gauge outfit and the third gauge outfit are all milliampere ammeters, and the base is provided with an A-phase binding post corresponding to the first gauge outfit; a B-phase binding post is arranged corresponding to the second meter head, a C-phase binding post is arranged corresponding to the third meter head, and the three binding posts are respectively matched and connected with binding posts of a three-phase winding of the motor. Comprising the following operation steps of: 1) randomly connecting three-phase binding posts on a device with three-phase binding posts of a motor respectively; 2) manually turning the motor to rotate