3 okw motor, 380 v voltage. The power factor is 0.2, could you tell me how to calculate the rated current?

Rated current I = P30KW U0.38 KV / 1.732 * * 0.2 = 227.9081 A, but electric motor 12v 500w 30 kw motor power factor can't be so low ah, do you want to calculate no-load running current of motor. The question you ask is problematic. ac three phase motor 30 kw motor power factor should be above 0.75. If according to the capacity of current rating: I = P30KW U0.38 KV / 1.732 * * 0.75 = 60.7755 A. Teach you two formula, very useful: "capacity divided by the number of kv, dealer by coefficient of seventh. "A kw, two current" can estimate the rated current of three-phase motor. Low power factor, then the acmotor2.blogspot.com motor should be banned the example of the net. Line current of three-phase ac asynchronous motor I material 2 P, P - power, kw. I material 2 x 60 kw motor current 30 = 60 a.

The structure of the four-way reversing valve

Four-way reversing valve is mainly composed of pneumatic directional control valve spool (main) valve, electromagnetic directional valve (control valve) and capillary. Within the main wholesalemotor.blogspot.com valve is electric motor fan cover composed of slide block, piston valve core, the main valve body ends for hole can make both ends of the capillary and connect body space, slider respectively fixed on both ends with ac motor the pistons, piston on both sides of the space through the vent in the piston is same. Control valve consists of body and electromagnetic lamination coil. The body contains type needle valve core. Between the main valve and control valve has three (or four) capillary is linked together, form the whole four-way reversing valve.