How to calculate Ampere and voltage
1. single phase voltage
V = P / I
Example:
P = 115I = 5
V = 1150P / 5I
V = 230V
2 . Three phase voltage
V = P / √3 × PF × A
Example:
P = 2875
I = 5
P>F= 0.8
V =2875.12 P / √3 ×0.8 PF ×5 A
V = 2875.12 / 6.928
V = 415V
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