Rajkamal Sir (Engineers Platform) 📚📚

5. Induction type single phase energy meters measure electric energy in

4. The power factor of a single-phase load can be calculated if the instruments available are [SSC JE EE 2021]

3. What is the phase angle (in degrees) of a balanced 3- phase star connected system, if the first and the second wattmeter show readings of 0 W and 1600 W respectively?

2. Which of the following is the cause of meter phase error in induction type energy meter? [SSC JE EE 2021]

1. What does the reading of the first dial on the right of a 4- dial watt-hour meter indicate? [SSC JE EE 2021]

5. The meter constant of an energy meter will be given in: [SSC JE EE 2021]

4. In the circuit shown, the pressure coils of two wattmeters are connected to:

3. In the two-wattmeter method, the readings of the two wattmeters are 500 W, 500 W respectively. The load power factor in a balanced 3-phase 3-wire circuit is: [SSC JE EE 2021]

2. Z₁ and Z2 are connected in series to form a load. A wattmeter's current coil is connected in series with the load, whereas its pressure coil is connected across Z2. The wattmeter reads: [SSC JE EE 2021]

1. In the two-wattmeter method of three phase power measurement of a balanced load, if the reading of one metre is 200 W, then then power factor of the load is…………………[SSC JE EE 2021]