Multifunction Instrument Current Transformer for Measuring Control Protection
1 Product introduction:
This series of CT designed base on IEC60044-8 custom design provided. This series of CTs are utilized LPCT&Rogowski coil to detect current, installed in switchgear which below 36kV circle, and compatible with electrical metering, Microcomputer measurement of protection equipment, multifunction as measuring, control, protection and data transmission synchronously.
2.Technical Data:
1. Rated Primary Voltage:33kV
2. Rated Primary Current:50-1500A
3. Rated Secondary Voltage: 4V(measuring), 200mV(protection)
4. Rated Burden>10kQ
5. Rated digital output: 0x2D41 ( measure), 0x01 CF(protection)
6. Accuracy for measuring winding: 0.2
7. Accuracy for protective winding:5P20/5TPE
8. Rated Frequency: 50HZ
9. Rated Insulation Level: 36/70/175kV
10. Rated short time thermal current: 50-200:1501 pr,
300-1500A:31.5kA/1S
11. Rated dynamic current: 50-200A : 375lpr, 300-1500A :80kA
12. Ambient temperature : -25℃-50℃
13. Ambient humidity : ≤95%(25℃ )
14. Altitude : 2000m( Can devise according customer’ s requirement)
15. Installation site : indoor
3. Outline Drawing:
