What are the measures to avoid insulation aging of transformers?

Transformers play a key role in the power system, and insulation aging can seriously affect their performance and lifespan. To ensure the safe and stable operation of transformers, it is crucial to take effective measures to avoid insulation aging.

Content

● Optimize the operating environment

●Temperature control:Install an effective cooling system, such as the oil - circulation cooling for oil - immersed transformers and the forced - air cooling device for air - cooled transformers. Ensure that the transformer operates within an appropriate temperature range. Generally, the upper - layer oil temperature of the transformer should not exceed the specified value (for example, 85 °C). Real - time monitoring through temperature sensors and automatic adjustment of the cooling intensity can prevent the thermal aging of insulation materials from being accelerated by high temperature.

●Humidity management:Keep the operating environment of the transformer dry. For indoor transformers, install dehumidification equipment to keep the relative humidity of the environment within a reasonable range (for example, below 70%) to avoid insulation aging caused by moisture.

●Reasonably select and timely maintain insulation materials

●Selection of high - quality materials:During the manufacturing stages of transformers, select insulation materials with good anti - aging performance, such as high - performance insulating paper and insulating varnish. These materials have good electrical and chemical stability and can effectively resist aging factors.

●Regular inspection and replacement:Regularly overhaul the transformer and check the state of the insulation materials. If there are signs of aging of the insulation, such as discoloration and embrittlement, replace the damaged parts in time to prevent the aging problem from worsening.

 ● Precisely control operating parameters

●Voltage stability: Install voltage - regulating equipment to ensure that the input voltage of the transformer is stable near the rated value. Too high or too low a voltage will damage the insulation. For example, long - term operation at over - voltage will make the insulation bear an excessive electric field strength and accelerate aging.

●Overload prevention:Reasonably allocate the load according to the capacity of the transformer and install overload protection devices. Avoid long - term overload operation of the transformer and reduce the effect of heat generated by overload on promoting insulation aging.

In Summary

Avoiding insulation aging of transformers is a systematic project involving multiple aspects such as the operating environment, insulation materials, and operating parameters. Through measures such as optimizing the environment, reasonably selecting materials, and precisely controlling parameters, the speed of insulation aging can be effectively slowed down, the service life of the transformer can be extended, reliable power supply of the power system can be ensured, and power - outage losses and maintenance costs caused by transformer failures can be reduced. Power enterprises should attach great importance to the implementation and continuous improvement of these measures.

Contact Us

LuShan, est.1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase isolation transformers,electrical transformer,distribution transformer, step down and step up transformer, low voltage transformer, high voltage transformer, control transformer, toroidal transformer, R-core transformer;DC inductors, AC reactors, filtering reactor, line and load reactor, chokes, filtering reactor, and intermediate,high-frequency products.

Our power transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering(furnace), central air conditioning.

Know more about power transformer and reactor :www.lstransformer.com