Metric
Conversion
Electrical Formulas
Conduit Weight
Maximum # of Conductors in Conduit
600 Volt Building Wire Weights & Ampacities
Ampacities of Insulated Conductors
Copper to Aluminum
Receptacle Configuration
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
|