1、 Reasons for Short Circuit in Dry Type Transformers
① Mechanical factors
Looseness of dry-type transformer components or incomplete plug insertion may cause short circuit faults. In addition, it may also cause damage to the insulation system of the transformer during transportation or installation, leading to the occurrence of short circuits.
② Insulation aging
The various components of the transformer gradually age with prolonged use, leading to a decrease in insulation life. Excessive temperature and humidity environments can also accelerate insulation aging, causing damage to insulation materials, ranging from electric leakage to short circuits in equipment.
③ Overload
The overload operating environment of transformers is also a major cause of equipment short circuits. When the transformer operates under overload conditions for a long time, it will cause the current and temperature to continuously rise, which will seriously affect the stability of the insulation system and form a short circuit fault.
④ External factors
The external factors in the operating environment of transformers are also one of the important factors affecting the operation of dry-type transformers. For example, sudden factors such as lightning strikes and impulse voltages can lead to equipment damage and short circuit faults.
2、 Solution to Short Circuit of Dry Transformer
① Find the cause of the short circuit
When a short circuit fault occurs in a dry-type transformer, it is necessary to first identify the cause of the fault, such as checking whether the plug is inserted or whether the insulation system is damaged.
② Replace the device
If the transformer experiences a serious short circuit fault and cannot be restored through repair, then the equipment needs to be replaced at this time. When replacing equipment, attention should be paid to selecting equipment that meets the manufacturer's standards, and ensuring that the installation and use of the equipment comply with the corresponding standards and specifications.
③ Improve equipment protection
In future use, users should improve the protective ability of dry-type transformers, such as installing overvoltage protection, overcurrent protection and other equipment, and strengthening equipment maintenance and repair work to prevent equipment overload, aging, and other situations.
In short, the short-circuit fault of dry-type transformers may be caused by multiple factors, and we need to solve it reasonably based on the specific situation. By strengthening the repair and maintenance of equipment and improving its protective ability, the occurrence rate of short circuit faults in dry-type transformers can be effectively reduced, and the reliability and service life of the equipment can be improved.
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