http://www.axair-fans.co.uk/industrial-fans/centrifugal-fans/forward-curved-centrifugal-fans-single-inlet-standard-motor/
Because in different situations, the actual effect of the centrifugal fan is also different, in order to adjust the centrifugal fan to the ideal state, for example, the centrifugal fan allows the rated power of the motor Electric operation for starting or lowering blood pressure, but it should be noted that the starting current of the motor rated power is about 5-7 times the rated voltage, and the torque of the blood pressure lowering motor is proportional to the square meter of the working voltage. When the power grid capacity is not enough, it should be Start by lowering blood pressure. In addition, how to understand the condition of the equipment during the trial operation of the centrifugal fan?
http://www.axair-fans.co.uk/industrial-fans/centrifugal-fans/forward-curved-centrifugal-fans-single-inlet-standard-motor/
When the centrifugal fan is running, immediately check whether the operating current of each phase is balanced and whether the current exceeds the rated voltage. If there is any abnormality, it must be checked immediately Shut down for inspection. After five minutes of operation of the equipment, shut down and check whether there is any abnormality in the fan. After confirming that there is no abnormality, restart the machine. If it is a single-speed fan, first start the low gear and check whether the rotation direction is correct. Properly, when starting at high speed, the fan must be stopped before starting to prevent the switch from tripping and the motor being damaged due to high-speed rotation. In addition, it is necessary to accurately measure whether the input current of the fan is normal.
Because the working current of the centrifugal fan cannot exceed its rated voltage, if the working current exceeds its rated voltage, check whether the power supply voltage is normal, and when the centrifugal fan is running, It is best to close the gate valve on the channel of the centrifugal fan or the inlet and outlet pipeline, and slowly open the gate valve after operation until the specified working condition is achieved, and pay attention to whether the operating current of the centrifugal fan exceeds the rated voltage. The centrifugal fan is a general term for products. Contains many different methods and types.
Due to the different characteristics of the centrifugal fan, it can be installed in the import and export trade of refrigeration units, boiler drums, centrifugal fans, etc. In addition, the motor of the centrifugal fan is connected according to the transmission belt of the drive drum , so its installation will be more complicated, in which the motor of the axial fan is installed inside the equipment, so it has gained better promotion and application.
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