How does Star Connection calculate current?
Voltage, Current and Power Values in Star Connection (Y)
- Hence, if.
- = 2 x VPH x (√3/2) ……
- VYB = VY – VB
- VBR = VB – VR
- Line Current = Phase Current.
- Hence, total active or true power in a three phase AC system;
- We know that the values of Phase Current and Phase Voltage in Star Connection;
- Power in Star Connection,
What is the current and voltage relation in star connection?
In star connection, line to line current is equal to line to neutral current. But, line to line voltage is root 3 times the line to neutral voltage. In delta connection, voltage across each element is equal to line voltage. But, line current is root 3 times the current flowing through each element.
What is Delta current?
In a delta system, the phase current is less than the line current by the square root of 3. In a wye system, the phase current equals the line current. Phase load — The load on the transformer winding. For a delta secondary, the phase voltage equals the line voltage.
What is the difference between star and delta wiring?
In Star connection, the line voltage is equal to root three times of the phase voltage, whereas in delta connection line voltage is equal to the phase voltage. In star connection, phase voltage is low as 1/√3 times the line voltage, whereas in delta connection phase voltage is equal to the line voltage.
What is the other name of star connection?
In a Star Connection, the 3 phase wires are connected to a common point or star point and Neutral is taken from this common point. Due to its shape, the star connection is sometimes also called as Y or Wye connection. If only the three phase wires are used, then it is called 3 Phase 3 Wire system.
How is current and voltage related in Star connections?
Hence, in Star Connections Line voltage is root 3 times of phase voltage. The same current flows through phase winding as well as in the line conductor as it is connected in series with the phase winding. Hence, in a 3 Phase system of Star Connections, the Line Current is equal to Phase Current.
What is the star connection in a 3 phase system?
Similarly, the voltage across each phase is called Phase Voltage Eph, and the voltage across two line conductors is known as the Line Voltage EL. The Star connection is shown in the figure below. As the system is balanced, a balanced system means that in all the three phases, i.e., R, Y and B, the equal amount of current flows through them.
How is power in each phase equal in Star connected load?
Power in each phase so in all three phases is equal in both cases of star and delta connection. In star connected load, line voltage is sqrt (3) of phase voltage and line current is same as phase current. So power in each phase = phase voltage × line current.
Is there a neutral point in the star connection?
Neutral or the star point exists in the star connection. Neutral point does not exist in the delta connection. Relation between line and phase current. Line current is equal to the Phase current. Line current is equal to root three times of the Phase Current.