Test Rigs for Induction Motor

The Induction Motor Performance Test Rig executes the following tests :

• No Load Test


• Load 1 Test


• Load 2 Test


• Lock (Selective) Torque Test


• Performance curve test

No Load Test : The motor is switched on with the set voltage. The magnetic particle brake is switched off. After a set delay, the parameters such as motor voltage, motor current, motor speed and motor torque are measured and displayed. These values are compared with the set limits and accordingly the results are declared.

Load 1 Test : The motor is switched on with the set voltage. The magnetic particle brake is switched on to simulate the loading conditions. The magnetic particle brake simulates the loading condition proportional to the current applied to it. By adjusting the current to the magnetic particle brake, set torque is achieved. Once the set torque is reached the parameters such as motor voltage,motor current, motor speed and motor torque are measured and displayed. These values are compared with the set limits and accordingly the results are declared.

Load 2 Test : It is similar to Load Test except the magnetic particle brake is loaded with the different load, which is equivalent to the normal load of the Induction Motor in vehicle conditions. The torque for which the motor is loaded is slightly less than the load test. At this time the motor voltage, motor current, motor speed and motor torque are measured and displayed. These values are compared against the set limits and accordingly the results are declared.

Lock Torque Test : The motor is loaded for the maximum limits by applying maximum current to the magnetic particle brake. The motor is switched on with the set voltage. With the locked condition, the parameters such as motor voltage, motor current and motor torque are measured and displayed. These values are compared with the set limits and accordingly the results are declared.

Performance Curve Test : The motor is switched on with the set voltage. The magnetic particle brake is switched on to simulate the loading conditions. The magnetic particle brake simulates the loading condition proportional to the current applied to it. By adjusting the current to the magnetic particle brake, set torque is achieved. Once the set torque is reached the parameters such as motor voltage, motor current, motor speed and motor torque are measured and displayed. The above task is repeated for the number of set levels(Maximum of 10 Set points). The Voltage and torque values are controlled by the PC which is programmable through program screen by the user that is the number of set points and the set voltage and torque for individual setting are programmable by the user. These values are stored in Excel format and plotted as performance curve

Sequence of operation

• Load the motor manually


• Select the corresponding program


• Select the mode


• Start the sequence using start key

Starter Motor

Alternator

Wiper Motor

Induction Motor