What is delta star?

Delta star is a circuit configuration used in three-phase electrical power systems. It consists of three resistors or branches, each representing one phase of a three-phase power system. The three branches are connected in a triangular pattern, with each resistor connected to two others at the points of the triangle. The point where the three resistors meet is called the star point or neutral point.

Delta star is used in power distribution systems, motor control circuits, and other applications where three-phase electricity is utilized. It has certain advantages over other circuit configurations, such as lower line currents, greater efficiency, and simpler wiring. However, it also has some limitations, including the need for a neutral wire, higher voltage levels, and some restrictions on the types of loads that can be connected to it.

Delta star is also known as a delta-wye connection, or Y-delta connection, depending on the orientation of the circuit. It is an important element of modern power systems, allowing for efficient and reliable distribution of electrical energy to homes, businesses, and industrial facilities.