Opto-electronic sensors - Non-Conventional Instrument Transformers (NCITs)
CTO is a “non conventional instrument transformer” (NCIT) and the result of our commitment in the new generation of instrument transformers.
The CTO is a “standalone” range of devices able to measure the current of HV lines for revenue metering application as well as for protection purposes.
Standards
- Compliance with IEC, ANSI or equivalent standard.
Main characteristics
- For protection and measurement application
- Up to 1100 kV
- Primary rated current : from 1 A to 4000 A
- Secondary rated current :
- Amplified metering output 1A; 0.5 VA
- Digital output : IEC; 61850-9.2/9.1
- Dynamic and accuracy :
- Metering current IEC; class 0.2 S
- Protection current IEC:class 5P20
- Bandwidth from 0.5 Hz to 6 kHz
- Operating temperature :
- 50° C, +55° C (Outdoor equipment)
- -5 C, +50° C (Indoor equipment)
Key Benefits
- Improved measurement performances
- Cost reduction for HV applications
- Environmentally friendly
- International standard IEC 61850 for "dicgital substations"
- Interoperability thanks to digital and analogues interfaces
- Reliability – Availability – Safety
- Mounting Flexibility in Substations
