Expected service life of dry type transformers

Expected service life of dry type transformers

Electricians and factory engineers often inquire about the service life of dry-type transformers. The simple answer is, 'Until they are scrapped.' However, this answer may cause a 'click' sound on the other end of the phone line. In this case, we are talking about universal dry air cooled transformers, 208, 240, and 480 volts. These transformers are ubiquitous in manufacturing facilities. For most people, they are just metal shells that warm up and make interesting buzzing sounds in winter. We were asked if they can be used for 25 years or longer.

The biggest enemies of air-cooled dry-type transformers are roof leaks and forklifts. The service life of transformers exceeds 25 years. But don't let them get wet, dirty, bumped or buried by 'things'. They don't like water or heat. If ventilation is obstructed, they may overheat, thereby shortening their reliable life expectancy. Therefore, if your universal dry air-cooled transformer is kept dry, clean, and well ventilated, it may last for 30, 40, or even 50 years of use. It should continue until your retirement, which has become the latest standard for many electricians and factory engineers. In addition, these transformers may appear harmless, but they are very dangerous and deadly if they explode or if something gets stuck inside the casing.

The transformer we are talking about may be 1000 kVa, with a primary voltage of 4160 V or 13200 V and a secondary voltage of 480 or 208. They are located in metal enclosures with ventilation openings to allow air circulation and cool the transformer. These transformers are located indoors, usually in a locked electrical room. We see that these transformers are 60 years old, but they are still buzzing

three phase dry type electric transformer

1.Safe, fireproof, no pollution, it can be installed directly in the load center.
2.Free maintenance, easy to install, low total operating costs.
3.With good moisture resistance, it can work normally under the100% humidity. After it stopped operating, the outage without pre-drying can be put into operation again.
4.Low loss, low partial discharge, low noise, good heat dissipation capacity. Under the forced air cooling conditions, it can run at 150% rated load.
5.The equipped perfect humidity protection & control system can provide reliable

This product is usually customized.
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