Centrifugal fan wiring safety and precautions

1. When the centrifugal fan is transported to the operation site, it is necessary to read the operation manual of the product first, check whether the wiring method is consistent with the wiring diagram of the manual, check the voltage and current of the motor and the voltage and current of the control cabinet to ensure that all electrical appliances Accessories meet installation requirements.

2. After determining the rated parameters on the control cabinet, determine whether the centrifugal fan can be allowed to start at full pressure or at reduced pressure, which needs to be determined according to the conditions of the installation site. If the full pressure is started, the current is about 57 times the rated current. The step-down starting torque should be proportional to the voltage.

If the capacity of the power grid is not enough, the step-down starting method needs to be adopted. The step-down starting method will be adjusted according to the operation of the fan, so the current value should not exceed the rated current requirement, which is a relatively conservative starting method.

3. When the centrifugal fan is in trial operation, there should be at least two people on site. One of them observes the operation of the fan, the rotation direction of the fan, the voltage and current conditions, and the other person controls the power supply. Once an abnormality occurs, the power can be cut off in time. After troubleshooting, try running again until the operation is stable.

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