What is the formula to Calculate the line current?
The formula is I = V/R.
What is the relation between line current and phase current?
Phase current is the current through any one component comprising a three-phase source or load. In balanced “Y” circuits, the line voltage is equal to phase voltage times the square root of 3, while the line current is equal to phase current.
How do you Calculate phase voltage with line current?
Calculate the phase voltage if the line voltage is 460 volts, given that the system is a three-phase balanced star connected system. Answer: We know, Vphase = Vline / √3 = 460 / √3 = 265.59 volts.
How do you find line current in three phase?
Three Phase Current – Calculation
- kW = kVA x pf.
- kVA = kW/pf.
- kVA = kW / power factor = 23/0.86 = 26.7 kVA (26700VA)
- Current = VA / voltage = 26700 / 230 = 116 A.
- VLL =√3 x VLN
- VLN = VLL / √3.
- kVA = kW / power factor = 12 / 0.86 = 13.9 kVA (13900 VA)
- Current = VA / voltage = 13900 / 230 = 60 A.
How do you find the line current in a 3-phase delta?
You can calculate the phase current of a delta transformer winding by dividing the phase VA by the phase volts: IPhase = VAPhase÷EPhase. The phase load in VA of a 3-phase, 240V load is the line load divided by three (one third of load on each winding).
What is the relation between line current and phase current in delta connection?
In a delta system, the line current is greater than the phase current by the square root of 3, which is about 1.732). In a wye system, the line current equals the phase current.
How do you find the line current in a 3 phase delta?
It will be noted from the below (fig-2) that the total current of each Line is equal to the vector difference between two phase currents in Delta connection flowing through that line. i.e.; Current in Line 1= I1 = IR – I. Current in Line 2 =I2 = IY – I.
How do you calculate line voltage from phase voltage?
Phase voltage to line voltage calculator: Line voltage is V(L-L) in volts equal to root 3 times of the phase voltage V(L-N) in volts. Example: What is the line voltage of the delta connected system whose phase voltage is 240 Volts. V(L-L) = 240 x 1.732 = 415 Volts. V(L-L) = 415 Volts.
Why line current is root 3 times of phase current?
It actually simply follows from the derivation from how three phase circuits are defined and set up. If you have the three phases 120 degrees apart, and an AC signal is flowing in it, in the way as defined by 3-phase, then the two types of configurations equation using the under root three factor. Hope this helps..
How do you calculate line to line voltage in 3 phase?
The formula is volts times the square root of 3, which happens to be rounded off to 1.732. For 2 lines each carrying 120 volts, the calculation for this is 120 volts times 1.732, and the result is rounded up to 208 volts. That’s why we call it a 208 volt three-phase circuit, or a 208 volt 3 phase line.
How do you find line current and phase current in delta connection?
i.e. In Delta Connection, The Line current is √3 times of Phase Current. As, all the Line current are equal in magnitude i.e….Line Currents (IL) and Phase Currents (IPh) in Delta Connection
- Current in Line 1= I1 = IR – I. B
- Current in Line 2 =I2 = IY – I. R
- Current in Line 3 =I3 = IB – I. Y
How do you calculate 3 phase current?
How do you Calculate current in 3 phase?
To find the power given current, multiply by the voltage and then the power factor to convert to W. For a three phase system multiply by three to get the total power.
How do you calculate current in 3 phase?
How do you Calculate line to line voltage in 3 phase?
How to measure a 3 phase power current?
P = VICos (ϕ) A comparison between the methods of measuring power in a three-phase circuit is shown in the table below.
What is the difference between kW and kVA?
Difference Between KVA and KW. KVA is used to represent apparent power and KW is used to represent the real power of an electrical system. Its usage differs in electrical circuits because of the difference between AC and DC circuits. When considering a DC circuit, the KW and KVA are equal because the current does not get out of phase.
How many Kva is 100 amps?
generator amp ratings – three phase extended kva kw 220 100 80 262.7 106 85 279.2 113 90 295.6 125 100 328.4
How do you calculate three phase?
Multiply wheel’s RPM with the tire diameter.