Is a wattmeter required to measure the active power delivered to a resistive load?

No. If the load is truly resistive, just measure the voltage across the load (in volts)and the current flowing in it (in amps) and multiply them. eg: 115 volts at 1.5 amps = 1 (MORE)

Is there any difference in values between the two wattmeter method and three wattmeter method if you apply these two methods in same load?

Blondel's Theorem states that you can have one less wattmeter than there are conductors supplying a balanced or unbalanced load. In either case, the sum of the wattmeter readi (MORE)

What is meant by load on a motor?

It is basically the work the motor is doing. In your car the motor turns the crankshaft which in turn moves the car. The resistance applied by the crankshaft against the job o (MORE)

The yokogawa dcs or any other dcs consists of a minimum of one field control station and a human interface system. In an FCS( Field control station) there are different node (MORE)

How you measure power factor in three phase load by two wattmeter method?

First of all, you can only measure power factor of a three-phase load, provided that it is balanced load. The power factor can then be found by determining the cosine of the p (MORE)

  The phantom loading is that no external load is connected in actual sense and the current and pressure coils are connected seperatly so that it will consume only less po (MORE)

In an air compressor, there are devices that automatically stops the compressor from compressing air. A mechanical unloader is sometimes installed in large air compressors suc (MORE)

What is meant load dispatch center?

Load dispatch centre is simply coordination agency of state electricity board. LDC is for ensuring the mechanism of safe and grid electrical operations for the transmission wh (MORE)

How do you Calibrate energy meter with the help of wattmeter and stop watch?

  A watt is one joule per second - a joule is the SI unit of energy.
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