Flexible Rogowski Coil for Three-Phase Integrator Specialized in Electric Energy Meters (without Piercing Power Taps)
The TFY flexible Rogowski coil is specially designed for State Grid Corporation of China metering meters, featuring a non-piercing power connector design. The coil has a perimeter of 165mm, an inner diameter of 50mm, a rated current of 100A, a maximum primary current of 500A, and a transformation ratio of 400mV/500A (voltage type with integrator output).
This TFY product features Class 0.5S fixed-position accuracy, linearity of 0.10%, temperature drift ≤0.05%, a bandwidth ranging from 45Hz to 5kHz, IP68 protection and UL94V-0 flame retardant rating. It can operate stably at temperatures from -40℃ to 100℃, and can meet the requirements for accurate metering and reliable monitoring of three-phase electric energy meters used by State Grid Corporation of China.
Custom-designed for three-phase electric energy meters of China State Grid, with precise matching of the dedicated three-phase integrator for metering meters, so as to meet the metering accuracy and reliability requirements of State Grid.
Fixed-position accuracy of class 0.5S, linearity of 0.10%, and phase angle error ≤ 12' @ 50Hz, ensuring the accuracy of the Rogowski coil sensor and complying with State Grid's metering standards.
TFY Rogowski coil sensor can operate at -40℃~100℃, with IP68 protection grade and UL94V-0 flame-retardant shell, enabling stable operation in complex industrial and outdoor environments.
Fully shielded structure (double shielding of conductive cloth + aluminum foil + braided copper wire), effectively suppressing electromagnetic interference and ensuring stable and reliable metering data.
Flexible coil with a perimeter of 165mm and an inner diameter of 50mm, adaptable to different cable sizes, featuring flexible installation without modifying the original power distribution structure.
Item | Value |
Coil Perimeter | 165mm |
Coil Inner Diameter | 50mm |
Coil DC Resistance | 100Ω~250Ω |
Rated Current | 100A |
Maximum Primary Current (Imax) | 500A |
Ratio | 400mV/500A (Voltage Type with Integrator Output) |
Weight | 270g |
Signal Cable Length | 2m |
Rated Frequency | 50Hz |
Fixed Position Accuracy Grade | 0.5S Class(25℃) |
Phase Angle Error | ≤12′@50Hz |
Linearity | 0.10% |
Temperature Drift | ≤0.05% |
DC Component | ≤0.1mV |
Bandwidth (-3dB) | 45Hz~5kHz |
Voltage Insulation | Coil: 3000V; Signal Cable: 1000V |
Safety Grade | 1000V CAT III |
AC Withstand Voltage | 4kVAC 50Hz 1min |
Operating Temperature Range | -40°C to 100°C |
Storage Temperature | -50°C to 100°C |
Relative Humidity | ≤80%RH |
Altitude | ≤4000m |
Enclosure Flame Retardant Grade | UL94V-0 |
Enclosure Protection Grade (IP Rating) | IP68 |
Shielding | 100% conductive fabric tape + 100% aluminum foil + braided copper wire shielding (signal cable) |
Coil Material | Wire & cable thermoplastic rubber, UL94V-0 flame retardant |
Connector | 100% conductive fabric tape + 100% aluminum foil + braided copper wire shielding (signal cable) |
Coil Color | Blue, Yellow, Red, Green, Black, Customizable |
Terminal Definition | 10-pin Phoenix connector (Customizable) |
Certifications | CE, UL (Optional) |
