Function and Application
The BP8Y series resistor is suitable for motor power (1.5~200) kW, with a maximum rotor voltage of 660 V and a frequency of 50 Hz for YZR series three-phase asynchronous motors used in lifting and metallurgical applications under frequent operation conditions. The resistor is directly connected to the rotor circuit of the asynchronous motor, without the need for additional contactors or other shorting devices, allowing the motor to achieve an almost constant torque mechanical characteristic.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Normal Working Conditions and Installation Conditions | 3.1 | The ambient air temperature does not exceed 40°C, and the average temperature over 24 hours does not exceed 35°C. |
| 3.2 | The lower limit of the ambient air temperature is -5°C (if the user needs to use it in an environment higher than 40°C or lower than -5°C, special instructions must be given when placing the order). |
| 3.3 | The installation location's altitude does not exceed 2000m. |
| 3.4 | When the maximum temperature is 40°C, the relative humidity of the air does not exceed 50%. At lower temperatures, higher relative humidity is allowed, for example, up to 90% at 20°C. Special measures should be taken for occasional condensation caused by temperature changes. |
| 3.5 | The installation surface should not be tilted more than 5° from the horizontal plane, and there should be no vibration or impact. |
| 3.6 | The installation environment should be well-ventilated, free from dirt, corrosive gases, conductive dust, flammable materials, and combustible gases. |
| 3.7 | There should be measures against rain, water, and snow, and it should be placed in an area without steam. |
