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The debugging of air shower blowers Nov 28, 2017

The air shower blower allows full-voltage starting or reduced voltage starting. The current of full-voltage starting is about 5 ~ 7 times the rated current. The torque of the reduced voltage starting is proportional to the square of the current. When the capacity of the power grid is insufficient, the air shower blower should adopt the reduced voltage starting.

 

When the power is greater than 11kw, it is suitable to adopt the reduced voltage starting. When the air shower blower in test run, carefully read the product specification, check whether the wiring method is consistent with the wiring diagram. At this time, also carefully check whether the working voltage which supplies voltage to the fan is in line with the requirements, whether the power supply has phase loss or phase equality. And check whether the capacity of the current distribution device meets the requirements.

 

When the air shower blower reaches the normal speed, it is necessary to detect whether the input current of the fan is normal. The operating current of the fan cannot exceed the rated current. If the operating current exceeds its rated current, check whether the voltage supplied to the blower is normal.

 

Under certain working conditions, for centrifugal fan and blower box, the power required for full opening of the air inlet is relatively large. If the air inlet is fully open, the motor will also be damaged.

 

In summary, in the test run of the air shower blower, there cannot be less than two people. One controls current source, and another observes the operation of fan. Stop the machine when finding the abnormal phenomenon. After running for five minutes, stop the machine to check whether there are any abnormal phenomena, and then turn on the machine.

 

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