Star-Delta Transformation: Converting Y to Delta in Electrical Networks, Slides of Engineering

Download Star-Delta Transformation: Converting Y to Delta in Electrical Networks and more Slides Engineering in PDF only on Docsity! | | STAR DELTA TRANSFORMATION Prepared by: zainab ather contents Introduction Definition  connection Star delta transformation Relation between line & phase current Relation between line &phase voltage Number of turns Network type Star delta transformation in AC Reference Connection Star connection ◦ The starting and the finishing point that is the similar ends of the three coils are connected together Delta connection ◦ The end of each coil is connected to the starting point of the other coil that means the opposite terminals of the coils are connected together. Star delta transformation To convert Star (Y) connection (on the left side) into delta (Δ) connections. Each shape can be ) connection (on the right side), the following formulas can be used. Relation between Line and phase current Star connection ◦Line current is equal to the phase current Delta connection ◦Line current is equal to the root three times of the phase current Network type Star connection ◦Mainly used in the Power Transmission networks. Delta connection ◦Used in the Power Distribution networks. STAR DELTA TRANSFORMATION IN AC ◦In AC circuits, impedance is playing the same role, resistance is playing in DC circuits. The complex quantity impedance is the combination of reactance and resistance and reactance is a combination of inductive and capacitive reactance. Fortunately, the above transformation is true for AC circuits having complex impedance instead of resistance. Reference ° https://electric-shocks.com/star-delta-transformation/ ° https://www.electronics-tutorials.ws/dccircuits/dcp_10.html ° https://www.bing.com/images/search?q=star+delta+transformation&FORM=HDRSC 2 ° https://circuitglobe.com/difference-between-star-and-delta-connection. html