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Total Power refers to the sum of the electrical power consumed or generated by the load being measured in a wattmeter. Check FAQs
Pt=3VphI1cos(Φ)
Pt - Total Power?Vph - Total Phase Voltage?I1 - One Phase Current?Φ - Phase Angle?

Power using Two Wattmeter Method Example

With values
With units
Only example

Here is how the Power using Two Wattmeter Method equation looks like with Values.

Here is how the Power using Two Wattmeter Method equation looks like with Units.

Here is how the Power using Two Wattmeter Method equation looks like.

2.5252Edit=312Edit0.24Editcos(1.04Edit)
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Power using Two Wattmeter Method Solution

Follow our step by step solution on how to calculate Power using Two Wattmeter Method?

FIRST Step Consider the formula
Pt=3VphI1cos(Φ)
Next Step Substitute values of Variables
Pt=312V0.24Acos(1.04rad)
Next Step Prepare to Evaluate
Pt=3120.24cos(1.04)
Next Step Evaluate
Pt=2.52518171140155W
LAST Step Rounding Answer
Pt=2.5252W

Power using Two Wattmeter Method Formula Elements

Variables
Functions
Total Power
Total Power refers to the sum of the electrical power consumed or generated by the load being measured in a wattmeter.
Symbol: Pt
Measurement: PowerUnit: W
Note: Value should be greater than 0.
Total Phase Voltage
Total Phase Voltage refers to the algebraic sum of all voltage drops or rises across components in a circuit, considering both magnitude and direction.
Symbol: Vph
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
One Phase Current
One Phase Current is the electrical current flowing through the load to determine the power consumption or generation in a single phase circuit.
Symbol: I1
Measurement: Electric CurrentUnit: A
Note: Value should be greater than 0.
Phase Angle
Phase Angle is the measure of the difference in phase between two periodic signals. It indicates how much one signal is leading or lagging behind another.
Symbol: Φ
Measurement: AngleUnit: rad
Note: Value should be greater than 0.
cos
Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.
Syntax: cos(Angle)
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other Formulas to find Total Power

​Go Total Power using phi Angle
Pt=3VphIphcos(Φ)
​Go DC Power (in Voltage Terms)
Pt=VtI-(Vt2Rvm)
​Go DC Power (in Current Terms)
Pt=VtI-I2Ra
​Go Total Power for Three Phase Wattmeter
Pt=(V1I1)+(V2I2)+(V3I3)

Other formulas in Wattmeter Circuit category

​Go AC Power
Pac=VtIrmscos(Φ)
​Go Wattmeter Reading
Wr=VwpPiV
​Go Resistance of coil S1
Rc=S2-(IpRp)Ip
​Go Resistance of Watt-meter pressure Coil
Rp=S2-(IpRc)Ip

How to Evaluate Power using Two Wattmeter Method?

Power using Two Wattmeter Method evaluator uses Total Power = sqrt(3)*Total Phase Voltage*One Phase Current*cos(Phase Angle) to evaluate the Total Power, The Power using Two Wattmeter Method formula is used to calculate the instantaneous power in wattmeter 1 in a two-phase circuit setup. Total Power is denoted by Pt symbol.

How to evaluate Power using Two Wattmeter Method using this online evaluator? To use this online evaluator for Power using Two Wattmeter Method, enter Total Phase Voltage (Vph), One Phase Current (I1) & Phase Angle (Φ) and hit the calculate button.

FAQs on Power using Two Wattmeter Method

What is the formula to find Power using Two Wattmeter Method?
The formula of Power using Two Wattmeter Method is expressed as Total Power = sqrt(3)*Total Phase Voltage*One Phase Current*cos(Phase Angle). Here is an example- 52.60795 = sqrt(3)*12*0.24*cos(1.04).
How to calculate Power using Two Wattmeter Method?
With Total Phase Voltage (Vph), One Phase Current (I1) & Phase Angle (Φ) we can find Power using Two Wattmeter Method using the formula - Total Power = sqrt(3)*Total Phase Voltage*One Phase Current*cos(Phase Angle). This formula also uses Cosine, Square Root Function function(s).
What are the other ways to Calculate Total Power?
Here are the different ways to Calculate Total Power-
  • Total Power=3*Total Phase Voltage*Total Phase Current*cos(Phase Angle)OpenImg
  • Total Power=Total Voltage*Total Current-(Total Voltage^2/Voltmeter Resistance)OpenImg
  • Total Power=Total Voltage*Total Current-Total Current^2*Ammeter ResistanceOpenImg
Can the Power using Two Wattmeter Method be negative?
No, the Power using Two Wattmeter Method, measured in Power cannot be negative.
Which unit is used to measure Power using Two Wattmeter Method?
Power using Two Wattmeter Method is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Power using Two Wattmeter Method can be measured.
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