What is the relation between star and delta?

Comparison between Star and Delta Connections

Star Connection (Y or Wye)	Delta Connection (Δ)
Line Voltage is root three times phase voltage i.e. VL = √3 VP. Here, VL is Line Voltage and VP is Phase Voltage.	Line Voltage is equal to Phase Voltage i.e. VL = VP.

What is meant by Star Delta transformation?

The Star-Delta Transformation (Y-∆) is a mathematical technique given by Edwin Kennelly in 1899 and is used to solve complex 3-phase resistive electrical circuits by transforming from Star(Y) design to Delta(∆) design with the help of formulas.

How do you convert delta to star?

The relation of delta – star transformation can be expressed as follows. The equivalent star resistance connected to a given terminal, is equal to the product of the two delta resistances connected to the same terminal divided by the sum of the delta connected resistances.

How do you calculate star Delta current?

Motor Full Load Current (Line) = (10×0.746)x1000/1.732×415=13 Amp. Motor Full Load Current (Phase) =Motor Full Load Current (Line)/1.732. Motor Full Load Current (Phase) ==13/1.732=7 Amp. Motor Starting Current (Star-Delta Starter) =3xFull Load Current.

How do you convert star to Delta?

Network Theory – Star to Delta Conversion

RA=R1R2R1+R2+R3 Equation 1.
RB=R2R3R1+R2+R3 Equation 2.
RC=R3R1R1+R2+R3 Equation 3.
⇒RARB+RBRC+RCRA=R1R2R3R1+R2+R3 Equation 4.

How do I convert star to Delta?

How is Star Delta Connection calculated?

Line Currents (IL) and Phase Currents (IPh) in Delta Connection. 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.

Is Delta series or parallel?

The 3 coils are wired in parallel with each other. 3 transformer coils (windings) wired in Delta configuration : The 3 coils are wired in series with each other, like batteries end to end.