LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A The Voltage sensor is produced on the basis of capacitive or resistive divider, according to the IEC 61869-11 standard. The current sensor consists of the operating principle of a Rogowski coil. This equipment is totally passive, without the need of power supply. Applicable for power/distribution transformers, and separable connectors type A. The sensors offer alternatives for monitoring and protecting network. Indoor application The sensors provide a RJ45 type connection with the corresponding cable (1m, 2m, 5m, 10m). Easy utilization and installation. Accuracy over complete lifetime INDISOL . Rua de Pardilhó 7 . 3860-529 Estarreja . Portugal . T +351 234 844 494 . [email protected] . ww

LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A VOLTAGE SENSOR PRINCIPLE The basic principle of sensors, with diferente accuracy and transformation classes, is based on the IEC 61869-11 standard The sensors are based, according to customer preference, on the resistive or capacitive divider. The sensor has two elements that divide the input signal in a normed output value. The transformation relationship between the high voltage (pݑ Ȱݑְݑ ) and output voltage (۰ݑ Ȱݑܰݑ°ݑ ) is developed according to the needs. VOLTAGE SENSOR LINEARITY Amplitude error [%] according to table 6A.4...

LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A RATED PARAMETERS Each sensor is identified with rating plate, where it is possible to see the different characteristics of the sensor. Among the characteristics, we can find, for example, the sensor accuracy class, operating temperature, transformation ratio and measurement impedance. To obtain the mentioned accuracy class, it is important to respect the measurement impedance as well as not to exceed the sensor operating voltage. Voltage sensor In the example on the right, we have an example for 24kV (voltage sensor) and 250A...

LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A Apply lubricant inside the sensor and then the rubber (3). • Connect the sensor with the bushing interface. Secure the sensor using the installation accessories (4). To install the sensor, a torque wrench, metric 10, is required. • Tighten the 4 accessories with a torque of 25Nm. • After installing, it is important to apply a lubricant to the sensor connection surface (5). • After applying the lubricant, assemble the bushing. • At the end of assembly, it is important to connect the ground cables. On the side of the sensor, we...

LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A -Separable conector (Interface A). 24kV – 250A A second possible application for this sensor is the possibility of using it in a Separable conector. Step 1 – Remove the bushing from the connector. Step 2 – After cleaning the sensor and applying the lubricant, install the sensor on the connector. 1 Step 3 – In the end, the bushing is installed again. INDISOL . Rua de Pardilhó 7 . 3860-529 Estarreja . Portugal . T +351 234 844 494 . [email protected] . www.indi

LOW-POWER PASSIVE VOLTAGE AND CURRENT SENSOR 24kV-250A. INTERFACE A TECHNICAL CHARACTERISTICS Current sensor Voltage sensor Rated primary voltage Rated primary current Insulation Level Rated transformation ratio Rated transformation ratio Accuracy class Short time thermal current Rated voltage factor Test type Accuracy class Rated frequency Rated burden Rated burden Lightning impulse test Test type Power-Frequency Withstand Voltage, 1min Partial discharges Note: No power frequency withstand test on secundary terminal is allowed INDISOL . Rua de Pardilhó 7 . 3860-529 Estarreja . Portugal . T +351...