Four of the substations, rated at 115/13.8kV, will be located in Dammam and Al-Hassa to the east of Saudi Arabia. The other two substations, rated at 110/13.8kV, will be built in Jeddah and Mecca to the west of the country.
As part of the turnkey contract, ABB will be responsible for the design, supply, installation and commissioning of the substations, which are scheduled for completion by 2012.
Under the terms of the contract, ABB will provide gas-insulated switchgear, transformers, medium-voltage switchgear, low-voltage auxiliary systems and the network-protection systems.
ABB will also equip the substations with automation, control and communication solutions.
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