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Operating requirements for double inlet radial centrifugal fan Mar 13, 2018

The double inlet radial centrifugal fan allows full pressure starting or stepping down during operation, but it should be noted that the current during full pressure starting is approximately 5-7 times the rated current, and the double inlet radial centrifugal The step-down starting torque and the square of the voltage of the fan are directly proportional. When the capacity of the power grid is insufficient, a step-down starting should be adopted.

Double-inlet radial centrifugal fan should carefully read the product manual during the test run. When using, check whether the wiring method is consistent with the wiring diagram. When running, carefully check whether the working voltage of the supply fan power supply meets the requirements.

When the double inlet radial centrifugal fan is in operation, its number during the trial run is not less than two. Under normal circumstances, one person controls the power supply and one person observes the operation of the fan. If an abnormal phenomenon is found, it is necessary to immediately stop the inspection.

After the double inlet radial centrifugal fan starts operation, it is necessary to immediately check whether the various operating currents are balanced and whether the current exceeds its rated current. If there is any abnormality, the machine shall be shut down for inspection. After running for five minutes, shut down and check if there is any abnormality in the fan, and confirm that there is no abnormal phenomenon before starting the operation.

Double inlet radial centrifugal fan should start low speed during test run. Check whether the direction of rotation is correct during operation. When it starts high speed, it must be started after the fan is stationary to prevent high speed reverse rotation. Causes tripping of the switch and damage to the motor.

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