Current against slip relationship of induction machine?

[cabellos]

Current against slip relationship of induction machine??

Please could someone explain to me the relationship between the current and the slip value of an induction machine. I have plotted a graph and I am wondering how to interpret this?

Thankyou.

 

[olebuckeye]

If you are writing about an induction motor then the slip is the difference between the stator and rotor magnetic field. The larger the slip the greater the current pull from the line. When the motor is working there is always slip and if the load is too great for the motor the slip causes a higher than designed current pull and this trips an overload.

 

[ravenprp]

The current against slip relationship of an induction machine is an important aspect to understand in order to analyze and interpret the performance of the machine. The slip value refers to the difference between the synchronous speed and the actual speed of the rotor in the machine. As the slip value increases, the speed of the rotor decreases, resulting in a decrease in the output power of the machine.

The current, on the other hand, is directly related to the torque produced by the machine. As the current increases, the torque also increases, leading to a higher output power. This means that there is a direct relationship between the current and the slip value of an induction machine.

When plotting a graph of current against slip, the resulting curve will typically have a linear shape. This is because the current increases as the slip increases, but at a decreasing rate. This is due to the saturation effect of the magnetic circuit in the machine.

The slope of the current-slip curve is also an important factor to consider. A steeper slope indicates a higher torque production capability of the machine, while a flatter slope indicates a lower torque production capability. This can be useful in determining the maximum torque and power that the machine can produce.

In summary, the current against slip relationship of an induction machine is a crucial aspect to consider when analyzing its performance. It can provide valuable insights into the torque and power capabilities of the machine, and help in optimizing its operation.