Introduction to YX2 High Voltage Efficient Compact Asynchronous Motor

This series of products is optimized based on the Y2 series high-voltage three-phase asynchronous motor, further reducing the total motor loss and meeting the first and second level energy efficiency standards of the national standard GB30254-2013. This series of products has the advantages of compact structure, light weight, high efficiency, energy saving, low noise, small vibration, high reliability, long service life, and easy installation and maintenance.

The basic installation type of the motor is IMB3 (horizontal with feet), and under normal working conditions, the working mode of the motor is continuous working mode (S1); Environmental air temperature: -20 ℃ to 40 ℃; Altitude: not exceeding 1000m.

The basic data of the motors included in this sample are as follows:

Machine base number: 355-630;

Synchronous speed: 3000r/min, 1500 r/min, 1000 r/min, 750 r/min;

Rated frequency: 50Hz (60Hz motors can also be manufactured according to order requirements (except for 2-pole motors));

Rated voltage: 6kV, 10kV (other voltage motors can also be manufactured according to order requirements);

Work schedule: S1

Power range: 160kW -3150kW;

Cooling method: IC411;

Protection level: IP54, can also be made into IP55, IP56, IP65;

Environmental conditions: humid and hot type, with climate protection facilities (TH); Damp heat type, no climate protection site (THW), dry heat type, with climate protection site (TA); Dry hot type, no climate protection site (TAW), tropical type, with climate protection site (T); Tropical type, no climate protection site (TW), indoor, indoor moderate corrosion protection type (F1), indoor strong corrosion protection type (F2), outdoor light corrosion protection type (W), outdoor moderate corrosion protection type (WF1), outdoor strong corrosion protection type (WF2), humid tropical zone (TH), outdoor humid tropical zone (WTH);

This series of products is mainly suitable for general mechanical equipment such as fans, water pumps, compressors, crushers, chip cutting machines, transportation machinery, and other similar mechanical equipment in industries such as petroleum, chemical, coal, power plants, metallurgy, transportation, textiles, pharmaceuticals, and grain processing.

Structural characteristics of YX2 high-voltage efficient compact asynchronous motor

1. Reduce installation space to achieve higher performance

Reducing the installation space of the electric motor, achieving smaller size, higher performance, and reliability, the YX2 series high-efficiency high-voltage three-phase asynchronous motor perfectly meets these requirements, with reliable performance and compact structure.

2. Improve reliability and extend the service life of the motor

High quality and high reliability are used to achieve a long service life. The motor frame and end cover are made of high-strength cast iron with mature technology. Through aerodynamic design, the motor frame is optimized to optimize the cooling airflow.

The YX2 high-voltage compact motor base adopts parallel full heat dissipation fins, with a waist reduction in the middle. The heat dissipation fins are arranged in a combination of non-uniform distribution and non concentric circles, and there are four axial ventilation channels inside. The spatial position of the winding end in the base is distributed with axial parallel heat dissipation ribs, which increases the heat dissipation area. In addition, high-quality corrosion protection and surface painting can also protect the motor from long-term climate effects. Dual loop cooling not only achieves higher power density of the motor, but also ensures uniform temperature distribution in the motor, effectively extending its service life;

3. Cooling System - Optimized Wind Path Design

The YX2 series high-efficiency high-voltage three-phase asynchronous motor, with its cooling principle of heat dissipation ribs, also indicates the characteristics of the motor. Due to the continuous development of electric motor technology, the volume of electric motors per unit capacity is constantly shrinking, which leads to an increase in the heat dissipation conditions of electric motors. In order to effectively dissipate the heat of electric motors, it is necessary to optimize the heat dissipation design of electric motors under heating conditions.

The YX2 series motor has two independent cooling air paths: an internal cooling air path and an external cooling air path. Most of the heat generated due to losses is transferred from the stator core to the machine base, and then carried away by the external cooling airflow. The heat generated by the remaining losses is mainly due to rotor losses and some losses at the end of the stator winding, which are transferred to the machine base by the internal cooling circuit. The cooling airflow of the external air path blows through the heat dissipation ribs. Due to the contraction of the machine base, the external airflow flows along the heat dissipation ribs from the non transmission end to the transmission end. The design of the machine base and heat dissipation ribs can achieve a high heat dissipation speed of the airflow. The junction box is installed at a position far away from the heat dissipation ribs, and the convective airflow is unobstructed. The inner side of the machine base around the stator winding end is equipped with internal heat dissipation ribs, which play a significant role in sufficient heat dissipation. The cooling of the internal air duct is achieved by using an internal fan at the non transmission end to make air flow through the rotor ventilation holes. The airflow outside the internal heat dissipation ribs of the machine base and end cover is severely turbulent and undergoes thorough secondary cooling. The machine base plays a role in heat exchange between the internal and external air, and the cooled air returns to the transmission end through four ventilation ducts inside the machine base in the same direction as the external cooling air, so that the heat dissipation of the motor is relatively uniform, achieving optimized design of the internal and external air ducts.