Standard Electrical Formulas Used for Power Consumption Calculations

TO DETERMINE:	SINGLE-PHASE	THREE-PHASE	DIRECT CURRENT
KVA	I x E 1000	I x E x 1.73 1000	--------
Kilowatts	I x E x PF 1000	I x E x 1.73 x PF 1000	I x E 1000
Horsepower	I x E x %EFF x PF 746	I x E x 1.732 x %EFF x PF 746	I x E x %EFF 746
Amperes (when HP is known)	HP x 746 E x %EFF x PF	HP x 746 1.73 x E x %EFF x PF	HP x 746 E x %EFF
Amperes (when kW is known)	KW x 1000 E x PF	KW x 1000 1.73 x E x PF	KW x 1000 E
Amperes (when KVA is known)	KVA x 1000 E	KVA x 1000 1.73 x E	--------

1 HP = 7457 Watts

1000 Watts (1KW) = 1.25 KVA with PE=0.8

1 KW = 1 KVA with PE=1.0

Usually observed in generators

1 HP = 571.42

No PE given