Electrical Formulas: |
|
Electrical Formulas: |
|
I = amperes E = volts KW = Kilowatts KVA = kilovolt/amperes HP = horsepower % Eff. = percent efficiency PF = power factor | |||
|
To
Find
|
Single
Phase
|
Three
Phase
|
Direct
Current
|
|
AMPERES
when KVA is known
|
KVA
X 1000 |
KVA
X 1000
E X 1.73 |
Not
Applicable
|
|
AMPERES
when horsepower is known
|
HP
X 746
E X % Eff.X PF |
HP
X 746
E X 1.73 X % Eff. X PF |
HP
X 746
E X % Eff. |
|
AMPERES
when kilowatts are known
|
KW
X 1000
E X PF |
KW
X 1000
E X 1.73 X PF |
KW
X 1000
E |
|
KILOWATTS
|
I
X E X PF
1000 |
I
X E X 1.73 X
PF
1000 |
I
X E
1000 |
|
KILOVOLT/
AMPERES |
I
X E
1000 |
I
X E X 1.73
1000 |
Not
Applicable
|
|
HORSEPOWER
|
I
X E X % Eff. X
PF
746 |
I
X E X 1.73 X
% Eff. X PF
746 |
I
X E X % Eff.
746 |
|
WATTS
|
E
X I X
PF
|
E
X I X
1.73 X PF
|
E
X I
|