Medium-voltage instrument transformers
Current sensor
CSO 25
Current sensor CSO 25 is designed for outdoor networks of 22 kV. Sensor is suitable for protection puposes or signalling. Creepage distance corresponds to highest voltage 25 kV in cases of exceptional pollution severity (31 mm/ 1 kV).
Sensor comply with requirements of standards ČSN EN 60660 and IEC 60273 for post insulator JO2-145, specified failing load 2000N. Current sensor fulfilled all the tests according to the IEC 60044-1.
It is possible to consult other technical parameters with the producer.
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Description
Current sensor CSO 25 is designed for outdoor networks of 22 kV. Sensor is suitable for protection puposes or signalling. Creepage distance corresponds to highest voltage 25 kV in cases of exceptional pollution severity (31 mm/ 1 kV).
Sensor comply with requirements of standards ČSN EN 60660 and IEC 60273 for post insulator JO2-145, specified failing load 2000N. Current sensor fulfilled all the tests according to the IEC 60044-1.
It is possible to consult other technical parameters with the producer.
Parameters
- Highest voltage for equipment: 25 kV
- Power frequency test voltage: 50 kV
- Lightning impulse test voltage: 125 kV
- Nominal primary current: 100–400 A
- Nominal secondary current: 1 nebo 5 A
- Rated short-time thermal current, Ith: 16 kA
- Rated dynamic current, ldyn: 40 kA
- Accuracy class – measurement: 2 %
- Overcurrent factor – measurement: >5
- Nominal power: 2 VA
- Nominal frequency: 50 Hz
- Weight: 8 kg
- Thermal insulation class: E
- Operation conditions: corresponds to temperature class -5/40 according to IEC 61869-1
- Standard: ČSN EN 6ČSN EN 60044-1, IEC EN 60044-1, ČSN EN 61869-1, ČSN EN 61869-2, IEC EN 61869-1, IEC EN 61869-2, GOST 15 1501869-1, ČSN EN 61869-3, IEC 61869-1, IEC 61869-3, GOST 15 150
Attached files
Drawing
