Technology Overview

During 2007 EPL Composite Solutions Ltd. (EPL) began working with Prof. Simon Rowland and Dr. Ian Cotton from the National Grid High Voltage Labs at the University of Manchester.

The aim was to combine their expertise – EPL in composite structures and the University in High Voltage Engineering – to create a team capable of developing an enabling technology to up-rate the operating voltage (e.g. from 275kV to 400kV) of existing infrastructure without the need to replace the pylon towers.

Initially the technology was developed as a Composite Cross-Arm. However, following on from the success of this work it has been realised that the technology is not limited to any one application but has the potential for many other uses. Read More

The Insulated Cross-Arm (ICA)

Arago Technology has completed development of an electrically Insulated Cross-Arm (ICA) for transmission towers. The ICA is suitable for retrofit to existing transmission towers or as an option for new line build.

The ICA is not limited to a specific tower size and can be adapted to suit any tower.

For the up-rating of existing lines, the ICA allows operating voltages to be increased without any change to the overall tower structure or height. The increase in voltage will usually require a change in the conductor (the wire carried by the towers). Significant improvements in power transfer capability can be achieved through the combination of the ICA with the use of a low sag novel conductor to increase current. Read More