Operation And Maintenance Of Dry-type Transformers

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Key points for daily maintenance and control of dry-type transformers:
1. Check the operating status:
Key points: Check the voltage, current, load, frequency, power factor, and ambient temperature for any abnormalities, record various upper limits in a timely manner, and deal with any problems in a timely manner
2. Transformer temperature check:
Key points: Check whether the temperature of the dry-type power transformer is normal, because it will not only affect the life of the transformer, but also interrupt the operation. When the temperature is abnormal, make sure the thermometer is normal. The thermometer is malfunctioning,
It should be repaired and replaced in time.
3. Inspection of abnormal noise and vibration:
Key points: Check whether there is vibration sound on the shell and iron plate, whether there is discharge sound caused by poor grounding, whether there is normal sound or abnormal vibration in the accessories, and if resonance or abnormal noise can be directly detected from the outside, it should be dealt with immediately.
4. Inspection of air cooling device:
Key points: Check whether the sound is normal and confirm whether there is any vibration and abnormal temperature. The fan should be manually tested on schedule.
5. Smell:
Key points: When the temperature is abnormally high, whether the attached dirt or insulating parts are burnt and smelly, any abnormality should be cleaned and dealt with as soon as possible.