Mastering Temperature Impact on Passive Voltage Sensors for Improved Network Management

Electricity distribution networks are undergoing profound transformation linked to the decarbonization of the economy, decentralized production and electric mobility. In order to manage this more complex electrical network, it is necessary to generate more and more quality information and, to generate more quality information, it is necessary to introduce sensors in the network that will make this information available. Among these sensors, the most relevant are those that measure voltage levels (voltage sensors).

Nowadays, small sensors are being developed called Low Power passive voltage transformers that intend, in a little intrusive way, to provide information about the voltage level and all its characteristics in all nodes of the network. These sensors have debated some problems, among which their sensitivity to temperature and the intention that the voltage measurement does not vary or varies the least with the thermal and environmental conditions or with the temperature generated by the operation of the device itself. Indisol has invested heavily in recent years, initially in understanding and then mastering this problem. Combining its competences in thermosetting materials (epoxy resin), in physics, in simulations and with many hours of hard work and trial and error, and nowadays this subject has practically been mastered. Indisol is now able to inhibit the effect of temperature on its different constructions of passive voltage sensors regardless of whether they are based on resistive, capacitive or other measurement principles. We believe in this way to be able to contribute to the quality of the information generated by these sensors and thus contribute to the modernization of electricity distribution networks and thus contribute to a more sustainable future.