What are the common faults of transformers? How can we prevent them?
1. When transformer insulation failure, which manifests itself as leakage, short circuit, breakdown, etc.
For this, here are the treatment measures we can take: We can regularly test the insulation resistance of the insulation and strengthen the maintenance and replacement of the transformer insulation materials.And after discovering the fault, we must promptly inspect or replace it.
2.Overload, which is manifested as: the transformer temperature is too high and the equipment is obviously hot.
We can take the following measures to deal with this situation: monitor the transformer load to avoid overload. Add cooling facilities and improve heat dissipation conditions (such as replacing a larger power fan). If necessary, we can reduce the load or replace a larger capacity transformer.
3. For oil-immersed transformers, when the oil temperature is too high, its external manifestation is: the oil temperature exceeds the specified range.
For this situation, we can take the following measures: check the cooling system of the transformer to ensure normal operation, and conduct regular oil temperature monitoring and replace the transformer oil in time.
4. When the transformer has abnormal noise, which is manifested as abnormal noise during operation.
We can deal with this situation like this: First, we can check the fixing bolts and connections of the transformer. Secondly, check whether there are loose parts inside the transformer. If there are any of the above situations, then we need to carry out professional fault inspection and repair.
5. Transformer oil leakage, as the name suggests, its manifestation is: transformer oil leakage.
If oil leakage occurs, we recommend the following measures: Check the oil level and oil quality regularly. After discovering the oil leakage point, seal and repair it in time, and replace or repair the damaged parts.
6. Transformer winding failure.If a winding failure occurs, it is generally manifested as: winding short circuit or open circuit.
In order to prevent such a situation, we need to conduct electrical tests on the windings regularly.
After the electrical test, if a fault is found, repair or replace the windings in time.
7. Ground fault. In this case, the ground resistance is too high or the ground system fails.
We can deal with it like this: regularly check the grounding system.
Maintain the grounding resistance within a safe range. For grounding faults, accidents are likely to occur when the grounding fails, so we must deal with it in time to ensure safety.
The above is my industry knowledge sharing today. I hope it will be helpful to everyone.
