How To Maintain And Maintain The Transformer Cooling Fan in Daily Life？

The transformer cooling fan can be directly connected to the air duct, with good performance, stable operation, low noise, reasonable and compact structure, and convenient installation. It was a substitute for imported products in the 1990s. It can be widely used for ventilation in hotels, shopping malls, hospitals, cinemas, dance halls, auditoriums, colleges and research institutions, as well as industrial and civil buildings.
Maintenance points:
This product is suitable for three-phase AC power supply, and the fan should be able to operate normally under the rated voltage and frequency specified on the nameplate (when the power supply meets the provisions of GB755-87 standard).
The transformer fan that is put into operation for the first time should strengthen inspection within a week. If any abnormal phenomena are found, such as severe vibration, abnormal sound, excessive current, bearing overheating, etc., it should be stopped for inspection in a timely manner. It can only be put into operation after troubleshooting.
When the shutdown time is long and it is necessary to put it back into operation, it is necessary to ensure that there are no foreign objects in the airflow channel and air duct, and then move the impeller for inspection. After all the power supply lines and other conditions are normal, it can be put into operation.
When the parking time is long or the motor is severely damp, and the insulation resistance is low, it should be dried before being put into operation.
When disassembling and repairing the machine, residues such as lubricating grease should be cleaned first, along with the bearings, and all parts should be thoroughly cleaned and inspected. If faults are found, they should be dealt with promptly (refer to the table of common faults and handling methods). If the winding is rewound, a voltage withstand test should be conducted. The new winding should be able to withstand an AC voltage of 2000V for 1 minute without breakdown. For factory products, when users require repeated voltage withstand tests, the test voltage should be 1600V and the time should be 1 minute. If *, reassemble and add new lubricating grease.
Regularly replenish lubricating grease: fully sealed bearings do not need to be replaced with lubricating grease within 5 years, and non fully sealed bearings should have their oil cups cleaned before oil injection; This product uses lithium based lubricating grease and cannot be replaced with other lubricating greases at will; Inject lubricating oil into the oil cup with an oil gun, with an amount of approximately 2/3 of the bearing space. It can be added once every 2-3 years during normal use.