There are three main factors to consider when choosing an explosion-proof motor.
1. After the voltage, frequency and speed are determined, according to the load driven by the motor and the condition of the power supply network, the installation coefficient K is selected to determine the motor power. The mounting dimensions are determined from the motor samples by installation. There are also cases where the motor power is selected from the sample from the determined center height.
2. Confirm whether the technical indicators meet the requirements (the supply and demand sides are finalized in the technical agreement). For the wound rotor motor, in order to select the matching start and speed control system, the supplier also needs to provide the values of the rotor voltage U2 and the current I2.
3, according to the use of the environment to determine the degree of protection and explosion-proof type, explosion-proof grade or corrosion-resistant categories, grades, and other requirements, such as outdoor, marine and so on. Reference: Explosion-proof motor temperature group and explosion-proof category.
