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Specifications
Frequency Range:
50Hz;60Hz
DCR Primary Side (Max):
81Ω
Mfr. Part #:
ART-B22-D125
Key Attributes
Model Number:
ART-B22-D125
Product Description
Product Overview
The LEM ART Series Split Core Rogowski Coil is an accurate, reliable, and easy-to-install energy sensor designed for future Smart Cities. It offers a flexible, non-intrusive solution for AC current measurement with galvanic separation. Featuring patented Perfect Loop Technology, it minimizes positioning and external conductor influence, making it ideal for a wide range of applications including MV/LV substations, power metering, building sub-metering, power quality monitoring, and fault detection.
Product Attributes
- Brand: LEM
- Product Series: ART Series
- Technology: Perfect Loop Technology
- Certifications: IEC 61010-1, IEC 61010-2-32, IEC 61869-1, IEC 61869-2, IEC 61869-6, IEC 61869-10, UL 61010-1
- Output Signal: 22.5 mV/kA
- Case Material: V0 (According to UL 94)
- IP Rating: IP57
- Insulation: 1000 V Cat III PD2
- Termination: 2 stripped wires
- Intended Use: For use in electric/electronic equipment; not intended for outdoor use.
Technical Specifications
| Parameter | Symbol | Unit | ART-B22-D70 | ART-B22-D125 | ART-B22-D175 | ART-B22-D300 | Comment |
|---|---|---|---|---|---|---|---|
| Sensing Aperture Diameter | mm | 70 | 125 | 175 | 300 | ||
| Output Cable Length | m | 1.5 (Other lengths available) | 1.5 (Other lengths available) | 1.5 (Other lengths available) | 1.5 (Other lengths available) | See page 8 for other lengths | |
| Coil Diameter | mm | 6.1 | 6.1 | 6.1 | 6.1 | Very flexible and thin coil | |
| Ambient Operating Temperature | TA | C | -40 to 80 | -40 to 80 | -40 to 80 | -40 to 80 | |
| Accuracy Class | 0.5 (IEC 61869-2) | 0.5 (IEC 61869-2) | 0.5 (IEC 61869-2) | 0.5 (IEC 61869-2) | |||
| Rated Insulation Voltage | V | 1000 | 1000 | 1000 | 1000 | Cat III PD2 | |
| Mass | m | g | 124 | 130 | 138 | 155 | (Cable length: 1.5 m) |
| Rated short-time thermal current | Ith | kA | 300 @ 50 Hz | 300 @ 50 Hz | 300 @ 50 Hz | 300 @ 50 Hz | (2) |
| Rated transformation ratio | kra | kA/V | 44.44 @ 50 Hz | 44.44 @ 50 Hz | 44.44 @ 50 Hz | 44.44 @ 50 Hz | |
| Frequency Bandwidth (3 dB) | BW | kHz | 420 | 373 | 350 | 300 | (3) |
| Phase displacement @ 50/60 Hz | 0.004 | 0.004 | 0.004 | 0.004 | (3, 4) | ||
| Ratio error (centered) | % | -0.5 to 0.5 | -0.5 to 0.5 | -0.5 to 0.5 | -0.5 to 0.5 | Class 0.5 accuracy according to IEC 61869-2 | |
| Ratio error (all positions) | % | -0.75 to 0.75 | -0.75 to 0.75 | -0.75 to 0.75 | -0.75 to 0.75 | (5) Including positioning error | |
| Influence of external current | I ext | % | 0.2 to 0.4 | 0.2 to 0.4 | 0.2 to 0.4 | 0.2 to 0.4 | (6) |
Notes:
- 1) The Rogowski coil can measure any primary current as there is no saturation effect.
- 2) Not tested given that in the worst case (load = 0 Ohm i.e. short circuit on the output) the peak dissipated power remains low (< 2 Watts).
- 3) Frequency bandwidth and phase shift modeling schematic can be provided on request.
- 4) Referring to the main phase offset of 90 (a Rogowski coil is a derivative current transducer).
- 5) Considering a primary conductor of at least 15 mm, perpendicular and in contact with the Rogowski coil.
- 6) Considering an external conductor of at least 15 mm the same current level than internal conductor, perpendicular and in contact with the Rogowski coil.
2411220612_LEM-ART-B22-D125_C7217632.pdf
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