Chandrapur back-to-back HVDC converter station
Chandrapur back-to-back HVDC converter station is a power link near Chandrapur, Maharashtra, India, that was built to export electricity from the Chandrapur Super Thermal Power Station to the Southern region of the national grid.
- Ownership: Power Grid Corporation of India
- Capacity: 2 poles, each 500 MW (total 1000 MW); DC voltage 205 kV per pole; rated current 2475 A
- Construction: built by GEC-Alstom between 1993 and 1997
- Type and configuration: back-to-back HVDC link with two independent poles; each pole uses two 12-pulse bridges; no DC smoothing reactors; DC terminals are grounded
- Layout: three single-phase three-winding converter transformers on each side per pole
- Thyristor equipment: 48 thyristor valves in total (12 at each end of each pole); each valve has 54 thyristor levels in series; thyristors are 100 mm in diameter and rated at 5.2 kV
- Filtering and reactive support: each side has 848 MVAr of AC harmonic filters; three 106 MVAr double-damped filters (tuned to 12th and 24th harmonics) and one 106 MVAr C-type filter (tuned to 5th harmonic). The Southern side also has two 50 MVAr shunt reactors
- Location relative to other systems: located about 20 km from the eastern end of the Chandrapur–Padghe HVDC link
- Operational history and purpose: originally linked the Western and Southern grids and exported power from the Chandrapur power plant; after India’s grids were synchronized into a single AC grid in 2013, the HVDC link is no longer needed for asynchronous operation but can still help control power flow as an embedded AC device
- Future use: could potentially be repurposed to move power to/from other regions or countries as needed
This page was last edited on 3 February 2026, at 19:50 (CET).