Delta connection

The Delta connection (or ∆ - connection) is a type of circuit configuration in electrical circuits. If the three elements of a circuit viz. aa’, bb’ and cc’ are connected in such a way that their ends a’ is connected to b, b’ to c and c’ to a to from a triangle then such a network is said to be a delta connected network. The given below figure shows a delta
connected circuit. There is no neural point in a delta connected network.

Delta Connection

Delta connected 3 phase AC network:

The 3-phase AC systems are either star or delta connected. In Delta connected 3 phase networks, the line to line voltages V_L is equal to the phase voltages V_ph while the phase currents, I_ph are 1/√3 of the line currents.

V_ph=V_L

I_ph=I_L/√3

Three phase Delta connected network