Transformers are an indispensable part of the power distribution system, and proper maintenance is particularly crucial for ensuring the continuous supply of electricity in power projects. Especially for dry-type transformers, which are commonly used in industrial and commercial environments, they have many advantages such as enhancing reliability and efficiency, reducing the risk of fire, and lowering maintenance costs.
However, like all electrical equipment, dry-type transformers require regular inspections and sometimes maintenance to ensure their condition and service life. In this article, we will discuss the daily maintenance and upkeep of dry-type transformers, including common problems and best practices.
Daily maintenance of dry-type transformers:
Maintenance and upkeep are particularly crucial for ensuring the safe operation of dry-type transformers. The following are some basic maintenance methods for dry-type transformers:
Inspection: It is essential to visually inspect the transformer to detect all hardware faults, such as cracks, corrosion leaks. Inspect the transformer casing, cooling system, and electrical connection grounding to ensure everything is in good operating condition.
Cleaning: Regularly clean the interior of the transformer and the radiator to prevent dust and debris from accumulating, which could harm the cooling performance of the transformer. Use a soft brush or compressed air to remove all stains or debris.
Inspection: Conduct regular electrical tests, including grounding resistance and power factor checks, to identify any abnormal phenomena that may indicate potential problems.
Oil sample: If the transformer has an oil-cooled core, regular oil sample collection and analysis are particularly important for inspecting all contaminants (such as water or metals), which may indicate damage or wear to the internal structure. Oil samples should be collected once a year and the results compared with those from previous years to determine if there have been any fundamental changes.
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