Detection system and method used for motor stator winding

Abstract

The invention discloses a detection system and method used for motor stator winding. A starting signal drive device sends multi-phase alternating-current electric signals to an electromagnetic excitation device so that a first rotating magnetic field of the electromagnetic excitation device can be produced, an iron core of a stator to be detected is excited to generate a second rotating magnetic field, the second rotating magnetic field enables each phase of windings of the stator to be detected to generate induced electromotive force, a detection device connected with the line outgoing end of the stator to be detected detects the induced electromotive force generated by each phase of the windings and sends the induced electromotive force to a display device so that the induced electromotive fore of the line outgoing end of each phase of the windings of the stator to be detected can be displayed, the induced electromotive force generated by each phase of the windings of the stator to be detected and induced electromotive force of the same line outgoing end of the corresponding phase of the windings in a pre-stored standard sample stator are sequenced and compared, and whether line outgoing faults or wiring faults of the windings of the stator to be detected exist is judged. Due to the fact that a rotor matched with the stator to be detected does not need to be looked for during detection, convenience is improved; the situation that mechanical abrasion occurs due to rotation of the rotor cannot occur, and detection cost is reduced.

Description

technical field [0001] The invention relates to the technical field of motor testing, in particular to a detection system and method for motor stator windings. Background technique [0002] At present, in people's daily life and various industrial controls, the motor plays an irreplaceable role as a power device, and the stator is an important part of the motor, and its quality determines the quality of the motor. Therefore, in the production process Usually, the stator winding of the motor is tested. Among them, the motor stator is usually composed of an iron core and multi-phase coil windings, and each phase coil winding is usually composed of multiple coil unit connections. The connection of each unit coil and the outlet of each phase winding are usually done manually, and errors are inevitable. For this reason, in the prior art, the stator coil winding is usually energized to make the rotor rotate, and then the stator detection device is used to detect such errors of th...

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Problems solved by technology

[0003] However, for multi-pole motors, it is difficult to find the wiring errors of individual coils by the existing detection method of rotating the rotor, which will greatly affect the accuracy of stator winding detection. Only matching rotors can be used, which requires staff to change the rotor frequently, which affects the detection efficiency. Moreover, the rotating rotor will cause mechanical wear and increase the detection cost

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