• MEWOI-X Series Rogowski Coil Current Sensor/Transformer/Transducer

MEWOI-X Series Rogowski Coil Current Sensor/Transformer/Transducer

  • Main Features:
    1,AC current detection 2, Range: AC 10mA~10000A-more 3,clamp size:φ100mm(can customize),4,Diameter:φ7.5mm
  • Model No.:
    MEWOI-X Series
  • Name:
    MEWOI-X Series Rogowski Coil Current Sensor/Transformer/Transducer
Rogowski Coil Current Sensor
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MEWOI-(A, B, C, D, H, S,X) Series ROGOWSKI COIL CURRENT SENSORMEWOI-clamp meter|earth ground resistance tester|pinza|接地电阻|curent sensor probe|电流传感器

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 into 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


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.

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