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Three-phase asynchronous motor stator and rotor double-layer winding four-way triangular three-lead wiring method

A double-layer winding, three-phase asynchronous technology, used in electric components, manufacturing motor generators, electrical components, etc., can solve the problems of wasting manpower, material resources, financial resources and time, complicated connection methods, and many welding heads, etc., to reduce the number of maintenance. , increase service life, less error-prone effect

Active Publication Date: 2014-10-15
济南市白象科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] 1. This connection method is cumbersome
[0021] 2. This connection wastes manpower, material and financial resources and time
[0022] 3. There are many welding heads, which may easily cause the motor to burn out

Method used

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  • Three-phase asynchronous motor stator and rotor double-layer winding four-way triangular three-lead wiring method
  • Three-phase asynchronous motor stator and rotor double-layer winding four-way triangular three-lead wiring method
  • Three-phase asynchronous motor stator and rotor double-layer winding four-way triangular three-lead wiring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Three-phase asynchronous motors for cooling towers in hot rolling mills

[0051] Model Y225M-4-45kw, insulation class is B, speed is 1480r / min, frequency is 50HZ, power is 45kw, noise limit is 840dB(A), power factor is 0.87, current is 83.2A, voltage is 380V, protection class is 2P44, standard number JBT06161999.

[0052] The motor Z=48, q=4, pitch 1-12

[0053] Wire Gauge: φ 1 =φ 2 =1.04

[0054] φ 1 =1.06 N=22

[0055] First press 4 groups to wind 12 wire packages on the winding machine. When inserting the wires, the pitch is 1-12. After all the wires are embedded, find the two adjacent wire packages 1 and 2 from the outside. Heads of packs 1 and 2, count 1-4 from pack 1, take tails of packs 4 and 5, count 1-4 from pack 4, take heads of packs 7 and 8, count 1- 4. Take the tails of wire packs 10 and 11, twist the 8 wires into a pile to get a lead wire A, and connect B and C in the same way

[0056] After comparison, in the connection method, each motor can save...

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Abstract

The invention discloses a four-way triangle three lead wiring method of a double layer winding of a stator and a rotor of three-phase asynchronous motor. The motor has 12 coils and three leads. Each lead has 8 wire heads, the 8 leads are twisted together to form one lead A, and then a lead B and a lead C are formed in the same direction according to the same method. The three leads are led out without a tramegger and the like, and enables stator windings to be attractive in appearance. The method saves materials, reduces cost and improves labor efficiency.

Description

technical field [0001] The invention relates to an improvement of the double-layer winding wiring method of the stator and rotor of a three-phase asynchronous motor, especially the four-way delta wiring method requiring three lead wires. Background technique [0002] In the daily repair of the motor, there are generally 6 terminals u on the outer terminal 1, v 1, w 1, u 2, v 2, w 2. Under normal circumstances, in the process of embedding the stator and rotor of the double-layer motor, 6 wires are connected according to the ordinary four-way delta connection method, and the u is measured with a megohmmeter. 1, v 1, w 1, u 2, v 2, w 2 Then use the vertical connecting board to connect three lines. This must be the case with a megger or other instrument. [0003] The motor with four-way delta connection has a total of 12 wire packages, figure 1 It is the plane expansion diagram of the common four-way triangular connection. [0004] The connection method of this mot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/08
Inventor 邵书东孙桂香王新刘波李桂玲
Owner 济南市白象科技发展有限公司
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