LCC-HVDC Transmission

Base on vast experience and strong technical background, NR offers LCC-HVDC solution package to both new and retrofit projects. The “All-In-One” LCC-HVDC solution package is composed of in-depth system study & design, high quality manufacturing, well system integration, FAT, commissioning and maintenance.

LCC-HVDC Transmission


  • More energy transmission over long distances than AC lines
  • More economical for long distances power transmission
  • Lower losses over long distances
  • Less right of way
  • Interconnect asynchronous grids
  • Controllability
  • Firewall of AC fault
  • Limit short-circuit capacity
  • Enhance system stability

Case Study

Philippines HVDC Retrofit Project

The Ormoc-Naga HVDC system is situated in the eastern part of Central Philippines. The Ormoc Converter Station (OCS) in Leyte side normally acts as a rectifier and the Naga Converter Station (NCS) in Luzon side normally acts as an inverter. The two converter stations are connected via two (2) overhead DC lines and two (2) 21km long oil filled submarine cables. [View More...]


NR provides complete HVDC engineering services to global users for newly built HVDC projects and obsolete HVDC upgrade projects. These services include,
Phase-I: Conceptual
  • Conceptual design
  • Systems studies
  • Equipment specifications
  • Selection of vendors
Phase-II: Design & Installation Phase
  • Review of design drawings
  • Permits and approvals
  • Installation Management
  • System startup
  • Testing / commissioning
Phase-III: Operation Phase
  • Operator training
  • System operation & maintenance