In 120V, 208V and 240V, 1-Phase & 3-Phase, high leg delta wiring systems,, the available voltage levels are as follows inside the main breaker panel. Voltage between three hot wires (hot 1, hot 2 (high leg delta) & hot 3) = 240V Three Phase. Godown Wiring Diagram - Tunnel Wiring Circuit and Working; How to Wire Auto & Manual Changeover.. Input Power Wiring Diagrams (Option D) Input Power Wiring Diagrams (Option D) Smart Series ® B L O C K T E R M IN A L Above diagram depicts two different wiring configurations. One is 208-240 volt, singlephase, 3-wire. Note that lines R/L1 and S/L2 are connected through the circuit breaker to the appropriate terminal strips.
Relation Between Phase Current and Line Current in Delta Connection. As in the balanced system the three-phase current I 12, I 23 and I 31 are equal in magnitude but are displaced from one another by 120° electrical. The phasor diagram is shown below: Hence, If we look at figure A, it is seen that the current is divided at every junction 1, 2.. 3-PHASE DELTA WIRING DIAGRAM 3-PHASE DELTA SYSTEM VOLTAGES L1 TO L2 240 V L2 TO L3 240 V L3 TO L1 240 V L3 TO L0 120 V L1 TO L0 120 V L2 TO L0 208 V Figure 1. THE ISSUES TO BE ADDRESSED SUPPLYING POWER TO EXISTING SYSTEMS If generator manufacturers had their preference, this type of system would not be used.