Top banner

Primary Substation "J" Project

A new Primary Substation (PSS) named as "J" is under construction to meet the future demand
A new Primary Substation (named as PSS “J”) is now under construction at No 752, Baseline Road, Colombo 09 to meet the future power demand in Colombo City. The primary and secondary voltages of this PSS is 33 kV and 11 kV respectively. This Primary Substation is directly fed from Kelanitissa Power Station. The capacity of this PSS is 32 MVA. This is the 10th Primary Substation installed in Colombo City once the project is commissioned. All these Primary Substations are interconnected by Radial and Ring Feeders to ensure an uninterrupted and reliable supply to Colombo City Consumers. Details of key events of this project is as follows:
• Name of the Project: Primary Substation “J” Project
• Executing AgencyMinistry of Power and Energy
• Implementing AgencyCeylon Electricity Board.
• Project ManagerMr. M.Z.M.F. Ameen
• Contact Details Project Manager - PSS “J”,
4th floor,
Ceylon Electricity Board,
No 340,
R A De Mel Mawatha,
Colombo 03.
Tel.: (94) 11 2 575923
• LocationNo 752, Baseline Road, Colombo 09
• Time FrameStarted in January 2009. Scheduled to be completed by December 2011
• Estimated CostRs. 446 Million

Progress of Primary Substation “J”

• Source of Funds Ceylon Electricity Board (Rs 446 Millions)
• Expected completionDecember 2011
• Quantum of Work • 2x16 MVA Primary Transformers. 33/11 KV
• 8.5 km of Single Core Underground Cables (33 KV, 400 Sqmm)
• 33 kV & 11 kV GIS panels (xxx Nos)
• Installation, Testing and
would be done exclusively by CEB staff.

Main Activities

Construction of a New 33/11 kV Primary Substation “J” consists of:
  • Execution of Agreement for the Project Site.
  • Procurements of 2x16 MVA Power Transformers.
  • 8.5 km of 33 kV, 400mm2/1c UG Cables.
  • 2xNeutral Grounding Resistors.
  • 33 kV & 11 kV GIS panels.
  • Earthing Mat Design and Earthing materials.
  • SVL, AC&DC equipment, Batteries and chargers.
  • Civil Works.
  • Transformer Fire Protection System.
  • Erection, Testing and Commissioning by CEB staff.