How can customers identify the motor with aluminium winding or copper winding?

Today's article we talk about how we know whether the coil used in the motor winding is copper wire.

From the analysis of the performance level of the electric motor

No matter what material is used, as long as the performance indicators can meet the assessment requirements.

But from the actual design and manufacturing analysis, poor quality or poor performance level of the material, to make a good performance of the electric motor products, is only a good wish.

In order to reduce manufacturing costs, some manufacturers do not hesitate to sacrifice the performance level of the elctric motor, the use of aluminum winding, the performance level of this electric motor, it is difficult to reach the standard efficiency level, especially in recent years, the country's high requirements for the electric motor efficiency level, the use of aluminum winding, absolutely can not achieve the high efficiency performance requirements.

Analysis of the resistance value of the motor windings;

However, in the electric motor market, especially some relatively remote, or the local market without the relevant testing agencies, there may be a number of unscrupulous businessmen to make money with some aluminium winding motor.

In view of the special nature of motor products, non-destructive inspection is difficult to identify the winding material, non-professional testing is also difficult to evaluate its performance, so consumers are not helpless to do?

No, we can still use some simple measurements to qualitatively determine the material compliance.

Copper and aluminium are more common conductive materials in the power industry, and in the electric motor products, especially industrial motors, mainly copper wire.

For the same specifications of the electric motor, the core structure is more or less the same, especially the slotted part will not be essentially different, if the aluminium instead of copper, the resistance of the two will be very different, as long as the basic understanding of the resistance value of this type of motor winding, by way of data comparison can be distinguished.

The two materials in the same temperature conditions, corresponding to a different resistivity relationship, aluminum resistivity than copper, at 75 degrees Celsius.

The resistivity of aluminum is 2 times that of copper, at 20 degrees Celsius, the resistivity of aluminum is 1.7 times that of copper, therefore, the use of relatively high precision multimeter, from the size of the resistance can be basically determined.

In the process of electric motor use, the motor temperature rise of aluminum winding will be relatively high, and the motor efficiency will be lower.

It is very important to find a professional electric motor manufacturer with 100% copper windings.

Dongchun motor is a professional manufacturer of electric motors with 100% copper winding for more than 15 years experience in China.

Please kindly check the proudcts as follows

single phase motor: YC, YCL with cast iron body and ML , MY motor with Aluminium body

Three phase motor : IE1, IE2, IE3 motor for both cast iron body and Aluminium body

Brake motor: DC brake motor and AC brake motor

VFD motor : frequency variable drive motors.

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