What is the cause of rectifier burnout?

Rectifier damage can be subdivided into power component damage and rectifier element damage:

Some of the power components use transformers, and some use pulse circuit power supplies. There are two types of transformer damage, one is due to short circuit or large overload, instantaneous heating, resulting in insulation layer destruction; One is poor heat dissipation, and the increase in operating temperature destroys the insulation layer.

The damage mode of the pulse circuit is mainly caused by the high operating temperature and the damage to the components. Of course, there are also fluctuations in the power supply and damage caused by high-voltage pulses in the power supply.

Rectifier component damage is often a breakdown. Now the components are relatively stable, and the probability of this damage is small.

Increasing the capacity of a power supply is often not economical and inappropriate by design. The dispersion of component parameters will form a difference in the quality of the rectifier, and it is difficult to control. For those that are occasionally damaged, they can be replaced, and for those that are frequently damaged, you can consider adding heat dissipation, such as adding a heat sink or fan.

Whether or not to work intermittently depends on the nature of the work. If you can work intermittently, you will work intermittently, and if you can't work intermittently, you will consider continuous work.