Remote management of transformers
When operating transformers, it is essential to maintain the operating temperature optimal, so that the life of the coil insulation is not shortened due to high temperature. Even a 10 degree difference in temperature can half the life of a transformer. Transformers need to be able to perform optimally in varying conditions, from freezing temperatures to scorching heat. Also the load on the transformer impacts the temperature of the coils and its insulation and therefore as well the transformer life.
The temperature can be controlled with a cooling fan circulating oil. The dOGMA-service platform can be configured to monitor the temperature sensors and to control the operation of the fans. It is also possible to read various digital inputs from switches.
The status of the transformer can also be monitored by performing a DGA (Dissolved Gas Analysis) on the cooling oil. As the insulation on the winding ages, it lets out gases, which dissolve into the cooling oil. The data from sensors measuring this process can be brought into the dOGMA-platform for further processing. Embedded intelligence can take this even further, enabling local interfaces, embedded algorithms and more.