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Phase and feeder identifier

The ILF G2 device, phase and feeder identifier, makes it possible to identify in a few seconds and with total reliability, to which Secondary Substation, Low Voltage panel, feeder output and phase each of the meters/subscribers of the Low Voltage electric grid are connected.

This information package is known as meter topology. The electric utilities knowledge of the topology of its subscribers is crucial for the correct management of its distribution networks.

In addition to determining the topology of the meters, intermediate elements of the network can also be identified.

The identification is carried out with the network in service, for any type of network: ringed, star, with/without neutral, triangle, etc.

The device consists of a CD – central unit that is installed in the Secondary Substation and a UL – line device that will be carried by the operator where the topology package is displayed. It is possible for several operators to work at the same time under the same CD, each with their own UL.

There is an advanced version of the device, the ILF G2 Pro. It is specially designed for large network mapping campaigns.

This new generation of identifiers allows to digitise the results obtained directly from the field. Thanks to the app GridGIS D-twin (developed by Ariadna Grid), which is sold as an option, the location and connection of all the identified points of the Low Voltage distribution network can be added, edited and stored on the same map.


• Operation with the network in service, without de-energised.
• Identification of the 3 phases and up to 12 feeders of a LV panel.
• Identification in a few seconds, 100% reliability.
• Proven efficiency over distances > 1 km
• Suitable for any Low Voltage network configuration, up to 480 Vac between phases (50-60 Hz): Delta, Star (without neutral), coupled or ringed networks…
• Designed to work in several Secondary Substations simultaneously.
• GridGIS D-twin digitising App (optional)
• Integrated Bluetooth for data transfer
• Easy to use and configure


Find more information about this and other solutions in our download area.

Identifying the neutral

In maintenance tasks that involve disconnecting the neutral, such as, replacement Low Voltage panels, unfold feeders… A wrong identification of the neutral can have serious consequences like: imbalances between phases, overvoltage, errors when quantifying technical-losses, dangeous for people and devices (electrical safety), economic sanctions…

The ILF G2 device allows to identify the correct Neutral, in a quick and reliable way, avoiding connection/disconnection errors and improving safety. ILF G2 Pro is suitable for more than 6 lines. See document in download section.

Cable identification

A solution that improves electrical safety in LV energised cable handling procedures. Adding the IC2G Rx device to the ILF G2 – UL provides a Cable Identifier. A quick and easy way to have two devices in one. See document in download section.


Find more information about this and other solutions in our download area.