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Consequently, what 3 phase system has a high leg?

High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, or red-leg delta) is a type of electrical service connection for three-phase electric power installations. The three-phase power is connected in the delta configuration, and the center point of one phase is grounded.

does 120 208 volt three phase have a high leg? Three Phase Four Wire Delta Also known as a high-leg or wild-leg delta system. Used in older manufacturing facilities with mostly three-phase motor loads and some 120 volt single-phase lighting and plug loads. Phase B, the high or wild leg, is not used as the voltage to neutral is 208 volt.

Correspondingly, what phase is the high leg supposed to be?

General Notes. The high-leg or phase with the higher voltage as measured to neutral has traditionally been designated “Phase B”. A change to the 2008 NEC now allows the high leg of a four-wire three-phase delta service to be labeled as the “C” phase instead of the “B” phase.

What is the purpose of a high leg?

The original purpose of a "high leg" service was to supply motor loads and lighting from a single service. As posted above, motors are dumb. If the phase to phase voltage is in the motor's tolerance, they will run just fine. DO NOT CONNECT ANY 120 VOLT, TO NEUTRAL, LOADS TO THE HIGH LEG.