Ministry of Electricity-Iraq Reconductors to Enhance Capacity and Reliability

ACCC® Conductor enabled reconductoring of a critical 400 kV transmission corridor using existing infrastructure, more than doubling capacity, reducing transmission losses, and lowering mechanical loading on towers.

125%

Capacity Increase

1276 MVA

Increased Power Supply

$3 M

Annual Loss Savings

Objectives

Increase Transmission Capacity Support power evacuation from Rumaila IPP and meet growing regional demand.

Reduce Line Losses Improve electrical efficiency and reduce wasted generation.

Maximize Existing Infrastructure Upgrade capacity without building new transmission corridors.

Improve Reliability and Grid Performance Strengthen system performance in southern Iraq.

Results

Capacity More Than Doubled. Increased current capacity from ~1,458–1,463 amps to 3,300 amps across both line segments.

Significant Increase in Power Transfer. Expanded capacity from ~1,010 MVA to ~2,286 MVA.

Reduced Transmission Losses. Achieved approximately $3 million in annual transmission loss savings.

Lower Mechanical Loading. Reduced stress on existing towers using a lighter composite core conductor.

Delivering More Power on the Existing 400 kV Corridor

The Rumaila IPP – South Nasiriyah transmission line is a critical route for delivering power from the Rumaila Independent Power Plant to load centers across southern Iraq. As demand increased, the requirement was to move more power through this corridor without the time and complexity of building a new transmission line.

The existing line was constrained by the thermal and mechanical limits of conventional AAAC and ACSR conductors. Increasing capacity using traditional approaches would have required significant structural upgrades or a complete rebuild.

To address this, Iraq’s General Company for Electric Power Transmission in the Southern Region reconductored approximately 136 kilometers of the existing 400 kV line across 292 towers using ACCC® Galveston 512.4 mm² Conductor.

This project represents an important milestone. ACCC® Conductor had previously been deployed in Iraq on 132 kV networks. The Rumaila IPP – South Nasiriyah upgrade marks the first successful application at the 400 kV level, demonstrating that the same reconductoring approach can be applied to higher-voltage, backbone transmission infrastructure.


Solution

136 km

Transmission Line

400 kV

Voltage Level

292

Towers Retained

Conductor Size: ACCC® Galveston
Conductor Size: ACCC® Galveston
Conductor Size: ACCC® Galveston
Conductor Size: ACCC® Galveston

Conductor Size: ACCC® Galveston

Project Highlights
  • Replacing conventional AAAC and ACSR conductors with the same diameter ACCC® Galveston Conductor enabled reconductoring of the existing 400 kV corridor, without requiring new structures or additional rights-of-way.
  • On both line segments, the ACCC® Conductor increased ampacity from approximately 1,458–1,463 amps to 3,300 amps and expanded power transfer capability to 2,286 MVA, while also reducing transmission losses and lowering mechanical loading on existing towers.

Questions ?

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