YJ19, YJ19A AND YJ19B Motor are cage variable frequency speed regulating asynchronous motors developed for AC-DC-AC electric drive oil drilling machine in China. They can drive rotary table, winch and slurry pump and sone other unit of the oil-drilling machine. The motors' installation dimension is the same as that of imported DC oil drilling machine.

They take explosion-proof strcture with heaters, pressure switches and auxiliary switches installed in them. The main characteristics are: Large torque, wide range constant power speed regulating, free maintenance, high universality, efficiency and reliability. The terminal mode of each motor is different.

Parameter
Rated power 400Kw
Rated voltage 600V(AC)
Rated current 517A
Rated rotating speed 660r/min
Rated frequency 33.5Hz
Rated power factor 0.8
Rated efficiency 92.3%
Rated torque 5787N. M
Max. Current 776A
Max. Torque 8680N. M
Max. Con. Power rotating speed 1060r/min
Max. Frequency 55Hz
Insulation class 200
Cooling method Forced air(with original fan motor installed)
Protection class Plus pressure explosion-proof
Mass 2200Kg