KaifengWithstand voltage of 10kV oil immersed transformerProspects and industry situation

When the manufacturer of the power transformer samples from the automobile oil tank, after opening the sealing cover, use the cleaned and dried rubber stopper to the oil. At the same time, clamp the branch pipe with your thumb, and loosen your thumb to make the oil enter the pipe,

After 24 hours of continuous trial operation with a certain load, the main body and accessories of the transformer are all normal, and the transformer will turn to all normal operation.

Kaifeng.Power transformer is indispensable for power stations and substations, samples shall be selected according to 5% of the number of gasoline barrels, but not less than 2 barrels. When sampling in batches of small and medium-sized pails or bottles, samples shall be taken according to 2% of the total number of barrels (bottles).

Before and after sampling,KaifengTransformer power,KaifengType of power transformer, clean the periphery of the sampling port with clean or hairless linen.

Oil immersed transformer

Oil immersed transformer

Transformer inspection nose sniffing method

When we apply oil immersed transformer, we all know that it works with the help of oil. What if the oil immersed transformer is on fire? What countermeasures should we do?

Inspection basis.The voltage regulating tap changer is not in place or poor

The insulating layer shaft and the connecting articles between the bell jar and the core shall be removed. If it is a hanging bell inspection the oil shall be pumped into the bottom of the bell jar before the bell jar can be removed.

After no-load test run is normal for 24h,KaifengDistribution transformer experiment, it can be transferred to on-load operation and the load shall be gradually increased from 25%, 50% and 75% by grade.

The long-term overload of power transformer will slowly cause the scalding and insulation aging of solenoid coil, resulting in short circuit between coils, two-color short circuit or short circuit on the ground, resulting in the ignition of power transformer. Therefore, the insulation compressive strength of power transformer shall be tested before installation and operation, and overload is not allowed in the whole process of operation.

Installation works.The vibration reduction solution of cable bridge is to modify the hard connection between bus bridge and dry-type transformer, the transformer was disconnected by vibration (but there was no grounding device).

What about oil immersed transformer fire?