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...Three phase circuits an ac generator designed to develop a single sinusoidal voltage for each rotation of the shaft rotor is referred as if number coils on increased in specified manner result polyphase which develops more than one per general systems are preferred over transmission power many reasons thinner conductors can be used transmit same kva at reduces amount copper required typically about less lighter lines easier install and supporting structures massive farther apart equipment motors have running starting characteristics compared because even flow transducer delivered with supply most larger they essentially self do not require special design or additional circuitry eeng b wire type two allows connection both v system sources operate different phases has induction placed stator equal turns induced across coil will peak value shape frequency balanced voltages four neutral having difference wye connected source delta p bn cn abc positive sequence acb negative...