A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

Measurement and Instrumentation
A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

- 597 W.

- 795 W.

+ 795 W.

+ 597 W.

- 597 W.

- 795 W.

+ 795 W.

+ 597 W.

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Measurement and Instrumentation
Which of following statement are correct in case of power factor meter?

The restoring torque is provided by a controlling torque.

The deflection is proportional to phase angle between field coil and crossed coil.

It consist of two coils mounted at right angles to each other.

Both B and C.

The restoring torque is provided by a controlling torque.

The deflection is proportional to phase angle between field coil and crossed coil.

It consist of two coils mounted at right angles to each other.

Both B and C.

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Measurement and Instrumentation
It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor?

150W

100W

50W

200W

150W

100W

50W

200W

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Measurement and Instrumentation
The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is

1 kWh

4 kWh

3 kWh

2 kWh

1 kWh

4 kWh

3 kWh

2 kWh

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Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

None of the listed here

5 A

0 A

2.5 A

None of the listed here

5 A

0 A

2.5 A

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Measurement and Instrumentation
The electrical power to a megger is provided by

Permanent magnet dc generator

Any of the listed here

Battery

Ac generator

Permanent magnet dc generator

Any of the listed here

Battery

Ac generator

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Measurement and Instrumentation

Measurement and Instrumentation A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

Measurement and Instrumentation Which of following statement are correct in case of power factor meter?

Measurement and Instrumentation The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is

Measurement and Instrumentation A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

Measurement and Instrumentation The electrical power to a megger is provided by

Measurement and Instrumentation
A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

Measurement and Instrumentation
Which of following statement are correct in case of power factor meter?

Measurement and Instrumentation
The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is

Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

Measurement and Instrumentation
The electrical power to a megger is provided by