Encapsulated

Potting means that the converter has a housing.
Typical casting compounds are casting resin and aluminium.

Advantages:
- Robust against mechanical stress (vibration and shock)
- Better EMC behaviour: lower interference radiation
- Protection against moisture and dirt
- Compensates for strong temperature fluctuations (simultaneously serves as heat sink or heat sink)

- Disadvantages:
- Potting compound heats up and all potted components are more or less exposed to this internal module temperature. The degree of component heating depends on the converter efficiency as well as on the thermal conductivity and heat transfer of the potting compound used.
- If the converters also have to meet high requirements with regard to insulation strength, the encapsulation is carried out using vacuum technology. This ensures that the partial discharge strength is not impaired by shrinkage, as this would reduce the insulation strength over the duration of the load. Back