Redskinsdb21
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- Joined
- May 5, 2011
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Im getting confused on some of the 3 phase power equations.
For example....
s(3Phase) = V_ll x I_l x sqrt(3)
Also,
s(3phase) = 3 x V_phase x I_phase....= 3 x V_ll x I_ll....what or when do you know when to use these different equations? Is the 2nd equation for calculating S across each phase of a 3 phase soource/load.....and multiplying it by 3....? Then what is the first one calculating?
For example....
s(3Phase) = V_ll x I_l x sqrt(3)
Also,
s(3phase) = 3 x V_phase x I_phase....= 3 x V_ll x I_ll....what or when do you know when to use these different equations? Is the 2nd equation for calculating S across each phase of a 3 phase soource/load.....and multiplying it by 3....? Then what is the first one calculating?
