High-voltage designs increasingly incorporate Intelligent Electronic Devices (lEDs) - making smart substations a reality. In the digital chain for current measurement, the COSI-RogoFlex® uses the latest sensor technologies for Digital Instrument Transformer (DIT) applications. DIGITAL INSTRUMENT TRANSFORMERS PRODUCT SOLUTIONS COSI-RogoFlex® Electronic current transformer Flexible current sensors Sensors are the basic elements of measurement. In order to obtain the highest accuracy for protection applications, the sensor should measure the current with the best linearity and repeatability, it should also be protected against the electromagnetic perturbations (EMCI of GIS substations. Sensors are designed according to a Grid Solutions patent, using flexible polymer pipes as wiring supports with a shielded double winding. COMPATIBLE WITH ALL GIS TYPES Thanks to their design, RogoFlex® sensors are flexible and the length of the « ring » can be calculated for each application, depending on the enclosure diameter. These sensors are available for the whole Grid Solutions GIS range. Thanks to their flexibility, RogoFlex® sensors can be retrofitted in existing substations without designing specific enclosures and with no need to remove HV parts. The sensors can be opened if needed [e.g. for inspection purposes). The open/close mechanism is rugged and locks the external tube. CUSTOMER BENEFITS • Very flexible design, allowing installation in a huge variety of locations in the substation • Sensor enclosures are smaller than conventional ones - space gains for substations * High electromagnetic immunity Merge Measure

DIGITAL INSTRUMENT TRANSFORMERS PRODUCT SOLUTIONS COSI-ROGOFLEX* Rogowski Shield Qeeprom Important note: This product may not be sold on its own. It must always be integrated in a global Digital Instrument Transformers (DITI solution. 1. Rogowski coil {cold) 7. Rogowski coil (warm) 6. EEPROM (I/O) 4. EEPROM (GND) LESS MAINTENANCE An external memory (EEPROM) Is associated with the sensor, allowing ail calibration values to be stored once the sensor is mounted. Thus, when a sensor is connected to the PC12 primary converter, the electronics automatically adjust the compensation gains related to calibration...