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Use and maintenance of dry-type transformers
Use and maintenance of dry-type transformers
Classification:News Time: 2020-11-11 11:47
【Summary】With the exception of individual product series, dry-type transformers with air as the insulating medium are less able to withstand impulse voltage than oil-immersed transformers. Therefore, their use conditions are generally limited to indoors that are not directly connected to overhead lines, so they will not be exposed to the atmosphere. Otherwise, special lightning protection should be added to ensure that the amplitude of atmospheric overvoltage does not exceed the amplitude of the power frequency test voltage.

With the exception of individual product series, dry-type transformers with air as the insulating medium are less able to withstand impulse voltage than oil-immersed transformers. Therefore, their use conditions are generally limited to indoors that are not directly connected to overhead lines, so they will not be exposed to the atmosphere. Otherwise, special lightning protection should be added to ensure that the amplitude of atmospheric overvoltage does not exceed the amplitude of the power frequency test voltage.

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