The meaning of the basic technical parameters of Y series motor
1. Standard number JB/T9616-1996
2, the shell protection structure type
The Y series small three-phase asynchronous motor basic series has IP23 and IP44 two enclosure protection grades. The meaning of IP23 and IP44 is: IP--- indicates the sign of the protection level. The requirements of the following two digits are as follows: Level requirements IP23 The first digit can prevent finger contact and the live or rotating part of the casing can prevent Small solid foreign objects with a diameter greater than 12 mm enter the second digit and the water spray at 60 degrees or less than the vertical line shall have no harmful effect on the motor. The first digit of IP44 can prevent tools, wires or similar with a thickness greater than 1MM. The object touches the charged or rotating part of the casing to prevent the entry of small solid foreign objects larger than 1MM in diameter, but does not include the vents that are sucked or supplied by the external fan and the drain holes of the enclosed motor. These parts should have level 2 The second digit of the protective performance is splashed on the motor in any direction and should have no harmful effects.
3, installation structure and type
The mounting structure of the Y series motor is divided into three types: the ground mounting, the flange end cover with the ground foot, and the mounting with a flange end cover. According to the three basic installation structures, the installation type of the motor is divided into horizontal installation or vertical installation and shaft extension up or down, that is, B3, B35, B5, V1, V15 and other installation methods.
4, cooling method
The Y series motors are basically cooled by the surrounding air.
The IP23 motor uses the blades on the rotor end ring as the driving element. The surrounding cold air enters from the end cover, is pressurized by the blades, carries part of the rotor heat, and then cools the stator winding ends and the core back, and the heated air slave The middle of the shell is discharged outside the machine.
IP44 motor, the heat generated by the internal loss (iron loss, copper loss, mechanical loss) of the motor is transmitted to the surface of the motor. The fan is driven by the fan installed on the non-shaft end to continuously blow the surface of the motor and take away the heat. Achieve the purpose of cooling the motor.
5, power level and installation size lookup table.
6. Main performance indicators Some motors are likely to have short iron cores and thin enameled wires compared with other factories, but the performance indexes of the motor and other power products are in line with the standard requirements.
7, winding temperature rise Y series motor uses Class B insulation, allowing the winding temperature rise to 80K. Another Class F insulation allows the winding temperature to rise to 115K. 8. Operating conditions (1), the altitude is not allowed to exceed 1000 meters, the ambient temperature is not more than 40 °C, and the lowest temperature is 15 °C. The wettest month and month average maximum humidity at the operating site is 90%, and the monthly average minimum temperature is not higher than 25 °C. (2) The power supply voltage is 380V±5%, the frequency is 50HZ and the variation is not more than ±1%. When the three-phase current is unloaded, the imbalance is not more than 10%, and the medium load is not more than 5%. The no-load current is typically 30-55% of the load current.
If you want to buy a medical device motor, please pay attention to Window Linear Actuator.
