ARU Series Outdoor Rogowski Coil

Product Highlights > ARU Series Outdoor Rogowski Coil

            ARU Series Outdoor Rogowski Coil
                    LEM flexible clip-around Rogowski coil sensor is designed for outdoor AC current measurement
    

Image of LEM ARU Series Outdoor Rogowski Coil for Electronic Measurement LEM ARU series is an outdoor flexible clip-around Rogowski coil for the electronic measurement of AC current with galvanic separation between the primary circuit and the secondary circuit. Its 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. Additionally, the ARU’s internal shield allows for enhanced measurement accuracy at low primary current.

Features

Class accuracy of 0.5 according to IEC 61869-10 and IEC 61869-6
Rated insulation voltage: 1 kV CATIII
1 A_RMSto 300,000 A_RMS
Flexible split-core current sensor for easy installation
Internal shield

Low output voltage proportional to the rate of change (derivative) of the primary current (electronic integrator required): 100 mV/kA at 50 Hz
10.4 mm gauge with sensing apertures of 70 mm to 300 mm
UV, water, dust, and ice resistant for outdoor installations
50/60 Hz bandwidth
Operating temperature range: -40°C to +80°C

Applications

Distribution automation for fault detection
Isolation and restoration
Grid monitoring
Distribution transformer monitoring
Distribution automation for voltage control and power quality

Outdoor and underground substations
Pole-mounted transformers
Overhead lines
Distributions system equipment