3 Phase Power Calculator

Calculate three-phase AC power parameters including real power, apparent power, reactive power, current, and voltage for both Wye (Star) and Delta connections with comprehensive analysis.

Three Phase Power System

Wye (Star) Connection

A
B
C
N
VL = √3 × VP
IL = IP

Delta Connection

AB
BC
CA
VL = VP
IL = √3 × IP
P = √3 × VL × IL × cos φ
S = √3 × VL × IL
Q = √3 × VL × IL × sin φ

Connection Type

Calculation Method

Voltage, Current & Power Factor

V
A

About 3 Phase Power Systems

Three-phase power systems are the standard for electrical power transmission and distribution. They provide more efficient power transfer and better balance compared to single-phase systems.

Connection Types:

  • Wye (Star): Neutral available, unbalanced loads possible
  • Delta: No neutral, higher current capacity, balanced loads required

Advantages of 3 Phase Systems:

  • More efficient power transmission
  • Constant instantaneous power
  • Smaller conductor sizes for same power
  • Better motor performance
  • Reduced vibration in rotating machinery

Applications:

  • Industrial motor drives
  • Power transmission and distribution
  • Large commercial buildings
  • Manufacturing facilities
  • Data centers and server farms