I. Basic Product Information
Product Type: Flexible Rogowski Coil (Differential Current Sensor)
Core Principle: Current is restored through differential sampling and integrating circuit; no magnetic saturation, fast response, and extremely small phase error.
Applicable Measurement Range: Milliampere to kiloampere current testing
Supporting Products: Compatible with analyzers such as S1/D1/S9/SW/A01/A05/ME631/ME432, etc.
Customization Services: Size, sensitivity, signal line length, etc. can be customized.
Core Features:
Excellent linearity, wide bandwidth range
No secondary open-circuit high voltage hazard, strong overload capacity
Strong anti-electromagnetic interference capability, zero power consumption, lightweight

II. Model and External Parameters
Table
Model Circumference (mm) Inner Diameter (mm) Weight (g) Rated Current Coil Cross-section (mm) Coil Resistance (Ω) Signal Line Length
Y-FCT-200 200 50 110 600A 8 100-250 2m
Y-FCT-350 350 100 120 1000A 8 100-250 2m
Y-FCT-510 510 150 130 3000A 8 100-250 2m
Y-FCT-800 800 240 150 6000A 8 100-250 2m

III. Electrical Performance Parameters
Angle difference ≤0.5°
Linearity ±0.2%
Bandwidth (-3dB) 1Hz-100kHz
Operating temperature -30℃~80℃
Storage temperature -40℃~90℃

IV. Application Scenarios
Arc fault current, insulator leakage current, capacitor/ discharge detection
Rectifier, medium frequency/power frequency welding machine, electric furnace transformer current measurement
Motor overload/short circuit protection, high and low voltage switchgear protection system
Power grid harmonic monitoring, active filter, power quality analysis
Large conductor grounding fault, transmission line fault diagnosis, traveling wave ranging

V. Comparison with similar products
Table
Model Series Bandwidth Maximum Range Applicable Scenarios
Y-FCT 1Hz-100kHz 100kA Conventional high current, harmonic, power frequency measurement
H-FCT 1Hz-50MHz 1000kA High frequency, transient pulse, ultra-high current measurement
NRC/TRC Maximum Portable handheld devices and outdoor switchgear measurement up to 50kHz and 7200A