MEWOI-(A, B, C, D, H, S,X) Series ROGOWSKI COIL CURRENT SENSOR
Click to download: MEWOI Rogowski Coil Current Sensor User Manual
Click to download: Rogowski Coil Current Sensor Specification&Selection Guide
INTRODUCTION
MEWOI-(A,B,C,D,H,S,X)Series Rogowski coil current sensor is based on Rogowski coil principle, and can be used in conjunction with oscilloscope, multimeter and other low voltage measuring instruments. It can also be used for current sampling of some online detection instruments. Some products provide special line accessories used to connect the BNC adapter input to the oscilloscope, multimeter or other measuring instruments. |
APPLICATION FIELD
Rogowski coil current sensors are used in special occasions where the general measuring instrument is difficult to measure, can bend in the narrow space, such as the measurement of dense lines, copper, aluminum row, and bus current. The Rogowski coil current sensor produced by our company uses special flexible material as the coils framework, which has the following characteristics after special processing: |
CHARACTERISTICS
Wide application environment: special flexible material making, convenient measurement of conductor current in any special environment Fast response, no saturation, and good precision, small angle difference: due to the unused iron core, the corresponding fast and unsaturated effect, the measurement accuracy is high, and the phase shift is small. The range of current measurement is wide: from 50mA to 200kA (power frequency range) The output interface is easy to match: the output interface can be conveniently connected to the oscilloscope, the multimeter, the power meter and other measuring or on-line monitoring equipment. Wide frequency range of measurement: Measurable current frequency bandwidth 2Hz-2Mhz(-3dB) Current measuring gear adjustable: current measurement is divided in o three levels, can be realized on the current measurement accuracy, accuracy 1%. Safety: it is safe and reliable compared with the conventional current clamp, which has not two-times-opening danger, especially when large current is tested. Coils length, output voltage and other parameters can be customized according to customer requirements
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Application Area: 1. Measuring the starting impact current of a motor, Motor overload / short circuit protection 2. Electric energy metering, Accurate calibration of current transformer 3. Power grid harmonic monitoring, Current distribution monitoring in parallel conductors 4. Measuring the induced current of the conductor around a large electrical equipment 5. Current measurement of rectifier, Medium and high voltage switchgear protection system 6. Measuring leakage current and breaking current of circuit breaker 7. Earth fault monitoring for large complex conductors 8. Leakage current measurement of insulators |
SELECTION GUIDE
Data/Model | NO.1 | NO.2(A) | NO.3(C) | NO.4(D) | NO.5(S) | NO.6(X) | NO.7(B) | NO.8(H) |
Range/Frequency | 0.02A-200KA(Can Customize), Frequency: 10Hz-10KHz |
Common range | 50mA~10000A~more | customize | customize | customize | 0.5A—5000A | 0—100000A | customize | 0.05A—5000A |
Phase | ----- | Single | Single | Single/Three | Three | Single | Single | Three |
Output | Differential signal | V(100A/1V、500A/1V、1000A/1V、3000A/1V、10kA/1V...(Can Customize)) | V(100A/1V、500A/1V、1000A/1V、3000A/1V、10kA/1V...(Can Customize)) | A(DC4~20mA) | A(1gear 5000A/100mA, 2 gear500A/100mA, 3 file 50A/100mA 50Hz) | V/A(output Ⅰ:DC 4-20mA output Ⅱ:AC 0-5A) | V(100A/1V、500A/1V、1000A/1V、3000A/1V、10kA/1V...(Can Customize)) | A(1gear 5000A/AC 100mA、2gear 500A/AC 100mA) |
Load impedance | >10kΩ | >10kΩ | >10kΩ | <20Ω | <20Ω | >10kΩ/<20Ω | >10kΩ | <20Ω |
Accuracy | ±0.5%~±1%(Can customize) |
phase shift | <30’ (50Hz) |
Linearity | ±0.2% (10%~±100%Range) |
Noise | Typical value<4mV(30A) < 2mV(300A) < 1mV(3000A) |
Position sensitivity | 1%Full Range |
Temperature drift | 0.02% Reading data/℃ |
Power Supply | ----- | DC1.5V*3 | DC5V | DC5V/12V | DC24V | AC220V | DC9V | DC24V |
Integrator Size(mm) | ----- | 112*72*36 | 148*80*32 | 140*72*26 | 208*138*52 | 420*340*130 | 120*75*30 | 280*200*75 |
Output Interface | ----- | BNC | BNC | ----- | ----- | ----- | BNC | ----- |
Coil Diameter | ∮7.5mm |
Coil Length | 315mm/450mm/800mm/1000mm(Other Size Can Customize) |
Tail line Length | 1M/1.5M/3M(Other Size Can Customize) |
Work Temperature | -15℃~70℃ |
withstand voltage | CATIII 2000V |
Protection grade | IP64 IP40 |
Notes:
1, Model 1 is Flexible Coil, without integrator
2, "customize" marked data can customize according to customer’s requirements
3, It should be tested in accordance with the requirements of the instructions when use.