0
The Phi angle is usually the second unknown angle after theta. It is typically used in the argument of a complex number, the phase of a wave in signal processing, in spherical coordinates, as one of the dihedral angles in the backbones of proteins in a Ramachandran plot, and as the internal or effective angle of friction.
What else can I help you with?
How do you calculate power angle of a synchronous generator?
tan (phi)= (V* sin (theta) + Ia*Xs)/(V*cos (theta) +Ia*ra) theta is power factor angle torque angle= phi-theta
How to calculate a true power?
True power, measured in watts (W), can be calculated using the formula: ( P = VI \cos(\phi) ), where ( P ) is the true power, ( V ) is the voltage in volts, ( I ) is the current in amperes, and ( \phi ) is the phase angle between the voltage and current waveforms. This formula accounts for the power factor (cosine of the phase angle), which indicates the efficiency of power usage in an AC circuit. To find true power, you need to know the voltage, current, and phase angle or the power factor.
What is the phase angle of a 30 ohm inductor in series with a 60 ohm resistor connected to a 5 khz souce?
The phase angle ( \phi ) in an R-L series circuit can be calculated using the formula ( \tan(\phi) = \frac{X_L}{R} ), where ( X_L ) is the inductive reactance and ( R ) is the resistance. The inductive reactance ( X_L ) can be calculated as ( X_L = 2\pi f L ). For a 5 kHz source and a 30 ohm inductor, the phase angle can be determined once the inductance value ( L ) is known. Without the value of ( L ), the exact phase angle cannot be calculated, but the relationship indicates that the phase angle will be positive, indicating current lags voltage due to the inductive component.
Why power factor using cos theta angle?
It's actually cos phi, where the Greek letter, 'phi', is the symbol for phase angle -the angle by which a load current lags or leads the supply current in an a.c. system (the Greek letter, 'theta', is used for the displacement of instantaneous values of current or voltage from the origin of a sine wave).The reason why power factor is a cosine requires you to understand the relationship between apparent power, true power, and reactive power. Apparent power is the vector sum of true power and reactive power, and can be represented, graphically, by the so-called 'power triangle'. In the power triangle, true power lies along the horizontal axis, reactive power lies along the perpendicular axis, and the apparent power forms the hypotenuse, and the angle between true power and apparent power represents the phase angle. By definition, power factor is the ratio between true power and apparent power, and this ratio corresponds to the cosine of the phase angle.From this, we can conclude that true power = apparent power x cos phi, where 'cos phi' is the 'factor' by which we must multiply apparent power to determine true power -i.e. the 'power factor'.
How do you convert kva to kw and currents?
3 phase kVA = V*I*sqrt(3) Where voltage is line to line, and current is the actual RMS current flowing in the a wire. kW = V*I*sqrt(3)*Cos (phi), where phi is the angle between the voltage and current; Cos (phi) is also known as the power factor. kVA is the vector sum of kW (real power) and kVAR (reactive power). As the equations above suggest, you must know the voltage to correctly calculate the current.
Why power factor in cos phi why not in sin phi?
Because it has to be 1 when the phase angle is zero.
What is the effect of the phase angle phi on the cosine function cos(wtphi)?
The phase angle phi in the cosine function cos(wtphi) affects the horizontal shift of the graph of the function. A positive phi value shifts the graph to the left, while a negative phi value shifts it to the right.
How do you calculate power angle of a synchronous generator?
tan (phi)= (V* sin (theta) + Ia*Xs)/(V*cos (theta) +Ia*ra) theta is power factor angle torque angle= phi-theta
How does the golden ratio relate to platonic solids?
The golden ratio, phi occurs many places in the platonic solids. The dihedral angle on the dodecahedron is 2*atan(phi), and the dihedral angle on the icosahedron is 2*atan(phi2) or 2*atan(phi + 1). The mid radius of the dodecahedron is similarly phi2/2 or (phi + 1)/2, and the mid radius on the icosahedron is phi/2. There are several other measures within Platonic solids which involve phi.
How do you find the phase angle in a wave equation?
The phase angle in a wave equation can be found by comparing the equation to a standard form, such as (y = A \sin(\omega t + \phi)), where (\phi) is the phase angle. This angle represents the horizontal shift of the wave relative to a standard sine curve. You can determine the phase angle by comparing the equation to the standard form and identifying the value that corresponds to the horizontal shift in the wave.
What is psi bond and phi bond?
Psi bond is another term for a dihedral angle in organic chemistry, which represents the angle between two planes formed by four atoms. Phi bond is not a commonly used term in chemistry. It may refer to the Greek letter "phi" often denoting an angle or a value associated with geometry or mathematics.
When two vectors A and B are drawn from the same point the angle between them is phi If A and B have the same magnitude which value of phi will their vector sum have the same magnitude as A or B?
120 degrees. Go mountaineers!
How do you calculate momentum broadening phi angle regarding to virtual photon direction in DIS processes?
BY sukin a chorizo
What is a correction factor capacitor?
i know that static capacitors are used to improve the power factor. power factor should be high. Static capacitor supplies lagging reactive power. That means; the current I has 2 components they are magnetising Im (watless or waste current) and useful current Iw. Iw is in phase with voltage and Im is 90 degree away. Phase angle between them is phi 1. power factor is given by cosine of phi 1. phi angle should be less so that cosine of phi is high. To make phi angle less we use capacitor; this is nothing but power factor correction and capacitor used for this is called power factor correction capacitor. now when a capacitor is connected, it induces a current Ic 180 out of phase from Im and less in magnitude from Im. therefore, now the magnetising current is Im1=Im-Ic. due to this the phase angle reduces to phi 2. now the new power factor is cosine of phi 2. it is improved power factor.
Phi phi intersection phi equals phi a true statement?
phi
Can two non-zero vector got a zero resultant?
Yes.If the angle between them is 90 degrees. As we know that A.B=|A| |B| cos (phi). When phi=90 degree,cos 90=0. Hence A.B= |A| |B| *0 =0.
What are the 3 phases of conditioning?
Three phases conditions are: 1. there should be three wires for carrying current and voltage. 2. the current and voltages should be sinusoidal in nature i.e A.C voltages or currents. 3. phase angle should be 120 degree apart for each line voltages or current. Suppose voltage of the first line is given by: Va= Vsin(phi) Then second and third line voltages will be: Vb=Vsin(120-(phi)) and Vc=Vsin(240-(phi)) where (phi) is the phase angle and V is the supply voltages which has same magnitude in all the three phases.
