Stator winding fault detection method and device
A stator winding and fault detection technology, which is applied in the direction of measuring devices, electrical winding testing, and electrical measurement, can solve the problems of difficult detection of bridge line misconnection faults, etc.
Pending Publication Date: 2019-04-05
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0004] In order to solve the problem that it is difficult to detect the bridge line misconnection fault in the above technical problems, this application provides a stator winding fault detection method and detection device, so as to effectively detect the bridge line misconnection fault before installation
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[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0044] The first aspect of this application, if Figure 7 , Figure 8 as well as Figure 10 indicated, Figure 7 It is a schematic diagram of the detection body structure in the embodiment, Figure 8 It is a schematic structural diagram of the detection device in the embodiment, Figure 10 It is a schematic diagram of the structure...
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The invention relates to the technical field of motors, in particular to a stator winding fault detecting method and device. The detecting device comprises a detecting coil, an electromotive force detector, a comparator and a memory. The detecting coil is used for detecting testing magnetic induction lines of all detecting positions of a stator winding to be detected, the detecting coil is electrically connected to the electromotive force detector, and the electromotive force detector is used for acquiring induced electromotive force data of the detecting coil at each detecting position. The electromotive force detector is connected to the comparator in a signal mode, the memory is connected to the comparator in a signal mode, and the induced electromotive force data and standard sample data stored by the memory are compared. If the induced electromotive force is different from the standard sample data, the comparator sends a fault signal. The electromotive force data of the detectingcoil is obtained by detection, and the magnetic field distribution of the stator winding after a working current is introduced can be directly reflected so that whether the winding wiring of the motoris correct or not can be accurately determined.
Description
technical field [0001] The present application relates to the technical field of motors, in particular to a stator winding fault detection method and detection device. Background technique [0002] In the prior art, each phase winding of the motor stator generally has two lead-out wire ends, one lead-out wire end can be called the head end, and the other lead-out wire end can be called the end or tail end, such as figure 1 Shown. The six terminals of the three-phase stator winding can connect the three-phase stator winding into star or delta, star or delta connection, wherein the beginning and end of the three-phase stator winding are predetermined by the manufacturer. During the production process of the stator, the lead wires at the first and last ends are routed according to the requirements of the drawing, and the probability of error is very small. [0003] However, when the bridge line is connected, if you do not pay attention or become paralyzed, the bridge line tha...
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Login to View More IPC IPC(8): G01R31/06
CPCG01R31/72
Inventor 贾武豪卢素华沈静文
Owner GREE ELECTRIC APPLIANCES INC