The steady growth in the use of grid-connected devices has prompted an increasing number of power distribution companies to implement monitoring systems. These systems give them the ability to monitor both the output of transformer substations and end-users. This measure allows them to adjust their networks to meet the demands and changes in the evolution of the electricity system, both in the short and in the medium and long term.
The implementation of Advanced Low Voltage Monitoring contributes to increased reliability of power supply, faster response to potential problems and improved operational efficiency in low voltage power grids.
In this context, SACI has decided to launch a series of low power sensors encapsulated in resin; TUP80RV y TU_R. SACI's low current sensors have been designed to be installed in low voltage or directly on insulated medium voltage cables. The resin encapsulation and plastic casing allows the transformer to be installed directly outdoors without suffering any degradation or deterioration of its characteristics.
The specification of output in millivolts The new sensor is in line with the latest standards and is a requirement demanded by electricity companies, something that is not yet common throughout the industry and which we at SACI have decided to start manufacturing. Thus, these sensors offer greater accuracy at low ratios, thanks to their type of construction. The low power sensors developed by SACI also simplify the manufacture of measuring equipment, as the short-circuit values supported in one second are lower in millivolts than in amperes, which makes it simpler to protect equipment in voltage (mV) than in current (A).
An important feature is the use of screened and unscreened cables and cables with smaller cross-sections to the one used with output in amperes, which leads to a reduction in costs. In addition, the sensor in the trafo is smaller than usual, so the equipment is smaller in size.
The range of sensors developed by the Spanish manufacturer following the UNE-EN 61869-10 standard is available for both low and medium voltage. SACI low power sensors are equipped with easy-clip connection, which allows a simple connection via a cable terminated in an RJ45 terminal for those with the cable incorporated or with an RJ45 socket on the base, thus making it easy to connect the transformers to the measuring equipment, without the need for terminals or screws.
On the other hand, this range of transformers can have the P1 side in a different colour, making it easier to distinguish their polarity. With all this, SACI continues to demonstrate its capacity for innovation and leadership in the electricity distribution market, anticipating the new scenarios that are emerging in the smart management of the energy network.