Now it is summer, summer is the peak of electricity, because the weather is too hot, so we do not want to go out, out of air conditioning at home, so that the high voltage test transformer is in overload operation state for a long time. For a long time in the overload operation state is very harmful to the transformer, so we know what harm is there for a long time in the overload operation state of the high voltage test transformer? If you don't know, let's take a look at the harm of long time overload operation of high voltage test transformers with small Series Mall.
First, the efficiency of the high voltage test transformer is reduced
The loss of high voltage test transformer mainly comes from internal copper loss and iron loss, why say so? Because of high pressure test transformer iron loss is not with the load change, and the copper loss and load is proportional to the current, these we can all from transformer efficiency curve, when the output of the transformer is zero is zero, our efficiency when output increases, we will start to increase the efficiency of, until the time of the increase to the maximum began to decline. From which we can clearly see, want to transformer overload operation, not with more load and output can, we not only to suppress the processing efficiency of the transformer, but also according to the capacity of the transformer to decide.
Two, the influence of the temperature of overloading operation on the platform
The temperature of the high voltage test transformer has a great influence on its operation, and the biggest influence is the insulation strength of the transformer. When the temperature of the transformer increases, the resistance of the coil will become larger and larger, and the copper loss will increase. We all know that the materials used in transformers have iron core and high and low voltage coil two categories. Although the iron core can withstand high temperatures, the high and low voltage coils of insulating materials will be very damaged when the temperature reaches a certain value. If such a long time of operation, will seriously affect the transformer life, serious may directly to the transformer to burn out.
Conclusion: If the high voltage test transformer is overloaded for a long time, it will seriously affect the service life of the transformer. In general, we still do not let the transformer overload operation, if we have to overload operation then we must do it in accordance with the specified standards, otherwise it is easy to lead to transformer burn out.
