HVDC Leyte–Luzon
The HVDC Leyte–Luzon is a high voltage direct current transmission link in the Philippines between geothermal power plants on the island of Leyte and the southern part of island of Luzon. The HVDC Leyte–Luzon went in service on August 10, 1998.
| HVDC Leyte–Luzon | |
|---|---|
| Location | |
| Country | Philippines |
| Province | Leyte Sorsogon Camarines Sur |
| Coordinates | 11°05′19″N 124°38′21″E 11°23′36″N 124°59′04″E 12°34′01″N 124°16′29″E 12°39′14″N 124°6′58″E 13°36′40″N 123°14′19″E |
| From | Leyte |
| Passes through | San Juanico Strait |
| To | Luzon |
| Ownership information | |
| Owner | National Power Corporation (1998–2003) National Transmission Corporation (2003–present) |
| Operator | National Power Corporation (1998–2003) National Transmission Corporation (2003–2009) National Grid Corporation of the Philippines (2009–present) |
| Construction information | |
| Manufacturer of conductor/cable | ABB Group |
| Installer of conductor/cable | ABB Group |
| Manufacturer of substations | ABB Group |
| Installer of substations | ABB Group |
| Commissioned | February 10, 1998 |
| Technical information | |
| Type of current | HVDC |
| Total length | 451 km (280 mi) |
| Power rating | 440 MW |
| DC voltage | 350 kV |
| No. of poles | 1 |
Route description
The HVDC Leyte–Luzon begins at Ormoc converter station (Leyte) and ends at Naga converter station (Camarines Sur). It consists three sections:
- Leyte-Samar overhead line
- submarine cables across San Bernardino Strait between Cabacungan (Allen, Samar) and Santa Magdalena (Sorsogon, Luzon)
- overhead line at Luzon
The length of submarine cable is 21 kilometers (13 mi) and the total length of overhead lines is 430 kilometers (270 mi). The HVDC Leyte–Luzon can transfer an output of 440 MW. It is implemented as monopolar line for a voltage of 350 kV.
The crossing of San Juanico Strait is realized as overhead crossing with a tower on an island in the strait.
Aim of the HVDC link is to feed the AC grid in the Manila region. Beside of overall connection of grids, the HVDC Leyte–Luzon stabilize the AC network. The interconnector is manufactured by the ABB Group in cooperation with Marubeni Corporation and it is operated by the privately-owned National Grid Corporation of the Philippines (NGCP) since 2009, and previously by government-owned companies National Transmission Corporation (TransCo) and National Power Corporation (NAPOCOR). It is also owned previously by NAPOCOR from 1998 to 2003 and currently by TransCo since 2003.
The grounding electrodes are situated at Albuera at 10°54′01″N 124°42′24″E and near Calabanga at 13°43′59″N 123°14′29″E . They are connected with the converter stations by 25 respectively 15 kilometre-long overhead lines.
External links
- HVDC Leyte – Luzon homepage, ABB website
- HVDC Leyte – Luzon overview, ABB website
- HVDC Leyte – Luzon overview, CIGRESC
- HVDC Leyte – Luzon overview, CIGRESC
- Leyte - Luzon HVDC Transmission line and tower photo