Qatar General Electricity & water Corporation - المؤسسة العامة القطرية للكهرباء والماء

03.02.2016

KAHRAMAA enhances reliability of Electricity Distribution Network

Qatar General Electricity & Water Corporation “KAHRAMAA” initiated the mega project of condition monitoring for asset management of 11kV Electricity Distribution Network to enhance its performance and reliability. The scale of the project is being considered as first of its kind in the GCC covering the entire Electricity Distribution Network.

It comes within KAHRAMAA endeavor to achieve its mission of Providing High Quality and Sustainable Electricity and Water for Better Living in Qatar

The project is being executed by Electricity Distribution Department with the aim of carrying out a comprehensive condition monitoring program of more than 11000 Electricity Distribution Substations in-live condition (in service condition) within a time-frame of 3 years.

The goal was to have assessment of the health of the entire fleet of assets and prioritize the interventions based on the severity of the condition and criticality of the asset. Each asset is monitored for a set of condition parameters and a quantified scoring system is used to represent the Asset Health as per actual site conditions.

The Asset Health model was evolved based on KAHRAMAA’s experience and recommendations as per international standards. The objective of the Asset Health Model is to effectively support advanced strategies in the field of asset maintenance, asset replacement, and risk-aware grid operation. These strategies move from time-based, to condition-based and to reliability-based maintenance, considering the condition and criticality of each piece of equipment. Various Indices were developed (such as Asset Health Index, Asset Maintenance Index, Probability of Failure, Estimated Residual Life, Asset Criticality Index, Asset Risk Index) which provide useful information to assess the situation of the distribution assets and support the decision making process for the right action to be performed on the asset.

Till 2015, Kahramaa has completed the condition monitoring of 69% of its network which involves more than 7750 Substations and more than 45000 assets. The Overall Asset Health Index stands at 94%, reflecting the good conditions of the assets. Out of 45190 assets inspected so far, 97% of the assets are in Good / Very Good condition and only 3% of the assets are categorized as Fair

Given that the project is still in execution stage and about 62% of the project is completed, the benefits are already visible.

Corrective and prioritized actions were performed on many assets that were defective and deficient, thus, avoiding a potential fault of power supply interruption to the customers. This has been achieved by identifying assets with abnormalities and prioritized action implemented for all such assets to avoid failures / interruption in power supply to the customers. The project has helped in lowering the faults in the substation assets by 50%.

Kahramaa has shared this experience in various conferences and technical journals. Considering the success of this project, Kahramaa strives to undertake new initiatives in line with QNV2030 to enhance further the reliability of its network, ensuring safety and improvement in customer satisfaction.

Accessibility

Contrast switch: Use the toggle below to switch the contrast

Text resize: Use the buttons below to increase or decrease the text size

Search

Login

KAHRAMAA enhances reliability of Electricity Distribution Network

Our use of Cookies

Contrast switch:
Use the toggle below to switch the contrast

Text resize:
Use the buttons below to increase or decrease the text size