Question
Download Solution PDFWhat is the relation between line voltage and phase voltage in a delta connection?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFIn a three-phase load, three different impedances are connected together in a star or delta fashion.
The delta in a three-phase system is formed by connecting one end of the winding to the starting end of other winding and the connections are continued to form a closed loop.
The star in the three-phase system is formed by connecting one end of all three impedances are connected together.
Important Points:
In a star-connected three-phase system,
VL = √3 × Vph
And IL = Iph
In a delta connected three-phase system,
VL = Vph
IL = √3 × Iph
Where,
VL is line voltage
Vph is phase voltage
IL is line current
Iph is the phase current
Last updated on Jun 26, 2025
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