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YD series two speed three phase motor is one of the main series products deriving from three-phase series. This multi speed induction motor can change rotational speed to meet the requirements of load state, so that they can properly match the demands of power and simplify adjustments speed system. They are widely used in such industrial and agricultural departments, as machine tools, mining metallurgy, spinning and weaving, printing and dyeing, chemical industry and agricultural machine. YD multi speed induction motor is equivalent to other foreign advanced machines, and therefore they are matching with single-machine or machine for export as well as motors for similar types imported from abroad.
Product Detail
Motor Type: two speed three phase motor
Output Power: 0.44 kW - 82 kW
Frame Size: IEC 80 - 280
Voltage: 380V
Frequency: 50 or 60 Hz
Protection Level: IP54 or IP55
Insulation Class: B or F
Cooling Method: ICO141
Working Duty: Continuous (S1)
Product Parameter (specification)
Two speed three phase motor
Production Features
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Check motor vibration and how to solve
1. Tighten all four anchor bolts on the foundation. The vibration value of the motor still exceeds the standard. At this time, check whether the coupling installed on the shaft extension is level with the shaft shoulder. If it is not flat, the excitation caused by the extra key on the shaft extension Vibration force will cause the horizontal vibration of the motor to exceed the standard. In this case, the vibration value will not exceed too much, and the vibration value can often decrease after docking with the host. The user should be persuaded to use it. The two-pole motor is installed in the shaft extension keyway according to GB10068-2006 in the half key during the factory test. The extra keys will not increase the excitation force. If you need to deal with it, just cut off the extra keys to make them longer.
2. If the vibration of the motor does not exceed the standard during the dry test, and the load vibration exceeds the standard, there are two reasons: one is that the alignment deviation is large;
The other is that the residual unbalance of the rotating part (rotor) of the main engine and the residual unbalance of the motor rotor overlap in phase. After the docking, the residual unbalance of the entire shaft system at the same position is large, and the generated vibration force is large, causing vibration . At this time, you can disengage the coupling, rotate either of the two couplings by 180°C, and then dock the test machine, the vibration will decrease.