How do you calculate resultant voltage?

How do you calculate resultant voltage?

The resultant voltage, VT is found by adding together the horizontal and vertical components as follows.

1. VHorizontal = sum of real parts of V1 and V2 = 30 + 10 = 40 volts.
2. VVertical = sum of imaginary parts of V1 and V2 = 0 + 17.32 = 17.32 volts.

What are the voltages for 3 phase?

For three-phase, you connect line 1 to line 2 and get 208 volts. At the same time, you [can] connect line 2 to line 3 and get 208 volts. And you [can] connect line 3 to line 1 and get 208 volts.

What is the voltage per phase?

Also the voltage between any one phase and neutral for a 3 phase system is 240 volts.

What is the most common 3 phase voltage?

This system is commonly called a 3 phase wye because of the Y shape of the phases. A 3 phase Wye configuration is shown in Figure 3. In the USA the most common configuration is 208Y/120. This indicates that line to line (L-L) voltage is 208Vac in a WYE configuration and the line to neutral (L-N) voltage is 120Vac.

How do you find the resultant current?

If the supply frequency is 50Hz. A circuit consists of 3 parallel branches the branch current are given as i1= 10 sin (wt), i2=20 sin(wt+600) and i3=75 sin(wt -300). Find the resultant current and express it in the form i=Im sin(wt+0). If the supply frequency is 50Hz.

What is φ in terms of voltage?

Sinusoidal a.c. theory A lagging power factor cos φ means current lagging the voltage as shown on Figure 1.4a. Note that the phasor diagrams have been drawn at a time ωt = π/2 for a voltage expressed as v = sin ω t.

What is 480V 3 phase?

The 480V 3-phase is used to power large loads like motors. The 277V is often used for lighting circuits and smaller loads. When this is the primary service to a facility you will typically find a transformer that is a 480V Delta\208Y120V that power a sub panel to provide standard 120V for outlets and small loads.

Which is method of solving AC parallel circuit?

There are mainly three methods of solving the parallel AC circuits….They are as follows:

1. Phasor Method or Vector Method.
2. Admittance Method.
3. Method of Phasor algebra or Symbolic method or J method.

How do Phasors work?

A phasor is a complex number in polar form that you can apply to circuit analysis. When you plot the amplitude and phase shift of a sinusoid in a complex plane, you form a phase vector, or phasor. You can also think of a phasor as a rotating vector.

What is the resultant of the three sources of voltage?

The resultant will be 3V1sin (wt+phase) . This is the case if all the three voltage sources has same phase angle. Then the resultant is addition of the three waves. If the sources has different phase angles , then the resultant is the vector sum of the three ( Magnitude V1 with the phase given) .

What is the relationship between voltage and current in three phase system?

since the relative angle between the voltage and current is equal in all threephases of a balanced three-phase system. The three-phase complex powertriangle is identical to the single-phase power triangle with the apparent,real and reactive powers replaced by the corresponding three-phase values.

What is the phase difference between voltage and current phasor at 300 angle?

As the two waveforms have same frequency they will maintain the same phase difference all the time. So, even at 300 angle, we can observe that the current phasor lags by the voltage phasor. In other words, voltage phasor leads by current phasor.

How many volts are in a 3 phase power line?

The actual voltages vary greatly and people just round off to 110 volts, 220 volts, 400 volts when the actual voltage on any given day can be plus or minus 10 volts on a 110 line and could be plus or minus 17 volts on a 3 phase line. Let’s make it simple and assume that the sides b and c equal 1 so that we can find the magnitude of side a.