R Series Split-core Flexible Rogowski Coil
R Series Split-core Flexible Rogowski Coil R Series Split-core Flexible Rogowski Coil R Series Split-core Flexible Rogowski Coil R Series Split-core Flexible Rogowski Coil

R Series Split-core Flexible Rogowski Coil

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BNWKLS-R series split-core three-phase flexible Rogowski coils are mainly used for the measurement and protection of three-phase current in power lines. The output signal is the differential of the current against time, and through an integrator, the measured current can be truly restored. The coil has excellent transient response ability, no hysteresis and magnetic and saturation phenomenon, wide measurement range, high precision and wide frequency response range. The split-core structure, flexible silicone rubber quilt and skeleton, can be used to measure the current of conductors with large size or irregular shape. The coil requires very little installation space, light weight, simple and convenient installation, and no need to damage the conductor. It is widely used in the measurement of large currents where the traditional CT measuring current cannot be used normally.
Product Features

Split-core structure, easy to install on site and easy to operate. Quick and easy installation or removal without disconnecting the primary cable under test, effective for safe and easy current testing;

Flexible structure design, can detect the current of irregular primary conductor;

Low output voltage, high linearity, wide frequency range, no saturation (without integrator);

The secondary output adopts shielded wire, and the length can be customized according to customer requirements.

Scope of Application
Measurement of high current AC signals (such as short-circuit current); measurement of pulse signals with high peak values (such as lightning current); analysis of harmonic current signals; current measurement of electric welding machines (such as resistance welding); measurement of irregular conductor currents (eg: rail current measurement); instrument measurement, clamp meter transformers (eg: measuring conductors with irregular dimensions).
Working Temperature -40℃~+70℃ Relative Humidity ≤90%
Voltage Level 0.4/0.66/0.72KV Accuracy Class 5%(without integrator)
1%(with integrator)
Rated Input Current 10~2000A Phase Error ≤60分(45HZ~65Hz)
Linear Range 5%~120% Response Bandwidth 1HZ~1MHz
Integrator Power Supply 5~15VDC Insulation Strenth 1000MΩ/500V/min
Shell PC Flame Retardant Grade94-V0 Secondary Lead Shielded Wire
Skeleton and Quilt Silicone Rubber IP Protection Class IP65
Shape and Installation Dimensions
Model No.
Φ1 Φ2
BNWKLS-100R 600A 333mV 0.5
100 8
BNWKLS-200R 1000A 50mV 200 8
BNWKLS-300R 1000A 90mV 300 10
Product Model NO. Naming Rules
Installation Precautions

Do not damage the coil. Twisting, puncturing, over-squeezing, over-bending, etc. will greatly reduce the accuracy and service life of the product.

We are a manufacturer has export qualification and experience.

instrument type at least 100pcs ;others by 1 -5 pcs;


Instrument transformer 20 thousand pcs ;current transformer 12 thousand pcs ;voltage transformer 11 thousand pcs.

We have a R&D team for new product design. Successful cases and in continued cooperation. Discussion among both sides ➡general specification ensure➡structure drawing ➡original sample ➡electrical

Standard Carton Export fumigatin-free tray Tray Film Edge fixing strip Vacuum packaging acceptable Customize size acceptable
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