Only when the centrifugal fan is chosen properly, it can ensure that the use effect of the centrifugal fan will not be affected by the motor failure. The starting mode of the motor mainly has the common full pressure start and the step-down start, the effect is different in different ways, and the methods that need to be maintained by the user will also have some certain. How can we choose the right starting mode for centrifugal fans?
Different starting methods have different operating conditions, but it should be noted that the current of the full pressure starting is about 5 to 7 times the rated current, and the starting torque is proportional to the square of the voltage. When the capacity of the power grid is insufficient, it should be started by step-down. Therefore, it is suggested that the debugger should try all kinds of starting methods here, so that the problems will be found more, and there are many advantages for the use of the centrifugal fan in the future. Before debugging, we must carefully read the product instructions and check whether the wiring method is in accordance with the wiring diagram; it should be carefully checked whether the supply voltage of the supply power is in conformity with the requirements, whether the power supply is missing or the same phase, and whether the capacity of the components of the electrical appliance is in conformity with the requirements. When the double speed centrifugal centrifugal fan is test, it should start the low speed first, check the rotation direction is correct; when the starting speed is high, the centrifugal fan must be restarted again after the centrifugal fan is still, in order to prevent the high speed reverse rotation and cause the switch trip and the motor damage. When the centrifugal fan reaches the normal speed, the input current of the centrifugal fan should be measured. The current of the centrifugal fan should not exceed the rated current. If the running current exceeds its rated current, check whether the supply voltage is normal.
These are the requirements of the centrifugal fan in the use of the actual working condition of the motor, only in this way we can let the centrifugal fan fully play the role, and will not cause the centrifugal blower to lose the use value and effect because of the motor problem, that the motor often encountered some faults, we must do a good job. Maintain a strategy to cope with a rainy day.
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