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This series of CT designed base on IEC60044-8,GB/T20840.8-2007, custom design provided. This series of CTs are utilized LPCT&Rogowski coil to detect current, installed in switchgear which below 35kV circle, and compatible with electrical metering, Microcomputer measurement of protection equipment, multifunction as measuring, control, protection and data transmission synchronously.
Main technical parameter
1. Rated Primary Voltage:35kV
2. Rated Primary Current:50-1500A
3. Rated Secondary Voltage: 4V(measuring), 200mV(protection)
4. Rated Burden>10kΩ
5. Rated digital output : 0x2D41( measure)，0x01CF(protection)
6. Accuracy for measuring winding : 0.2
7. Accuracy for protective winding:5P20/5TPE
8. Rated Frequency: 50HZ
9. Rated Insulation Level: 40.5/95/185kV
10. Rated
short time thermal current : 50-200: 150Ipr, 300-1500A :31.5kA/1S
11. Rated dynamic current：50-200A : 375Ipr,
300-1500A :80kA
12. Ambient temperature : -25℃-50℃
13. Ambient humidity : ≤RH95%(25℃ )
14. Altitude : ≤ 2000m( Can
devise according customer’s requirement)
15. Installation site : indoor
Outline Drawing:
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