ART Series Indoor Flexible Rogowski Coils

Product Highlights > ART Series Indoor Flexible Rogowski Coils

            ART Series Indoor Flexible Rogowski Coils
                    LEM flexible coils are designed for both industrial and smart grid applications
    

Image of LEM ART Series Indoor Flexible Rogowski Coils LEM ART series is an indoor flexible clip-around Rogowski coil for the electronic measurement of AC current with galvanic separation between the primary circuit and the secondary circuit. The patented Perfect Loop Technology dramatically reduces both error due to the position of the measured conductor within the aperture and error due to the proximity of external conductors. In addition, the ART series internal shield allows for enhanced measurement accuracy at a low primary current. The ART series is designed for both industrial and smart grid applications.

Features

Class accuracy: 0.5 according to IEC 61869
Better than 0.75% accuracy regardless of the primary conductor's position
Rated insulation voltage 1 kV CATIII
10 A_RMS to 10,000 A_RMS
Thin, light, and flexible split-core current sensor for easy installation
Almost perfect linearity, no saturation, no upper limit in current rating
Internal shield

Low output voltage proportional to the rate of change (derivative) of the primary current (electronic integrator required): 22.5 mV/kA at 50 Hz
6.1 mm gauge with sensing apertures of Ø 35 mm to 300 mm
Bandwidth: 50 Hz/60 Hz, up to 700 kHz in open circuit condition (no load)
Operating range: -40°C to +80°C
Fast clip-on mounting while the cable is connected
Slot expected to fix the loop on the conductor with a cable tie
Ø 2 mm hole to pass a security seal

Applications

Secondary distribution substations
Distribution transformer monitoring
Phasor Measurement Units (PMU)
Commercial and industrial buildings

Metering and sub-metering
Demand response (DR)
Distribution system equipment