Three Phase Power Measurement Using Two Wattmeter Method.

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

1.    R, Y, B and N of MCB - R, Y, B and N of Autotransformer.

2.    Z1 of Voltmeter - A1 of Autotransformer and Z2 of Voltmeter - A2 of Autotransformer.

3.    A1 of Autotransformer - M1 of Wattmeter and M1 of Wattmeter - C1 of Wattmeter.

4.    L1 of Wattmeter - X1 of Ammeter and X2 of Ammeter - Y1 of load.

5.    A3 of Autotransfrormer - M2 of Wattmeter and M2 of Wattmeter - C2 of Wattmeter.

6.    L2 of Wattmeter - X5 of Ammeter and X6 of Ammeter - Y3 of Load.

7.    A2 of Autotransformer - X3 of Ammeter and X4 of Ammeter - Y2 of Load.

8.    V1 of Wattmeter - X3 of Ammeter and V2 of Wattmeter - X3 of Ammeter.

NOTE : If wire is wrongly connected, Click on node number to detach the wire.

STEP 2 : Click on   CHECK  button for checking the connections.

STEP 3 : Click on the mcb off MCB to Turn ON mcb on the supply and Select the number of Bulbs from the Lamp Load.

STEP 4 : Click on   ADD  button to add the readings to the Observation Table.

STEP 5 : Add different readings to the Table by selecting different number of bulbs.

STEP 6 : Click on   PRINT  button to print the webpage.

STEP 7 : Click on   RESET  button to refresh the webpage.