To perform speed control of DC motor by using Ward-Leonard Method

STEP 1: Make connections as per the instructions given below:

From A1 B1 C1 E1 F1 G1 D1 K1 K1 K1 H1 H1 J1 J1 I2 M1 N2 L1 L2
To A2 B2 C2 E2 F2 G2 D2 M1 K2 L1 H2 I1 J2 I2 M2 N1 O1 L2 M1


STEP 2: Click on “Check Connection” button to check the connections.

STEP 3: If the connections are not correct, you can click on node number to detach the wire or click on “Reset” button to make all the connections again.

STEP 4: If the connections are correct, then Turn “ON” the MCB Switch.

STEP 5: Then, Click on the Auto Transformer knob.

STEP 6: Now, Slide the Knob of the Rheostat. The readings of Voltmeter and RPM will be shown in the display.

STEP 7: Click on “Add to table” button to add the readings to the observation table and Live Graph will be created when readings are added in the table.

STEP 8: Click on “Print” button to print the webpage.