Three phase Motors Parameters calculations

It is very important to find  out electrical parameters for an electrical engineer.

Very time installation of motor required certain parameters calculations which are stated as below:-

Electrical Parameter to Find	Alternating Current
	Single-Phase	Three-Phase
Amperes when horsepower is known	HP x 746 E x Eff x pf	HP x 746 1.73 x E x Eff x pf
Amperes when kilowatts are known	KW x 1000 E x pf	KW x 1000 1.73 x E x pf
Amperes when KVA are known	KVAx 1000 E	KVA x 1000 1.73 x E
Kilowatts	I x E x pf 1000	1.73 x I x E x pf 1000
KVA	I x E 1000	1.73 x I x E 1000
Horsepower = (Output)	I x E x Eff x pf 746	1.73 x I x E x Eff x pff 746

As from above we can find out ampere a motor can take. Day to day checking motor ampere is very much required for an electrical engineer.