# POWERGRID Augments 765 kV Hub Substations with 1,500 MVA Transformers to Evacuate 20 GW Rajasthan Solar

> Power Grid Corporation of India Limited (POWERGRID) has commissioned massive 765/400 kV interconnecting transformer (ICT) augmentations and 300 Mvar synchronous condenser units across the Ramgarh, Bhadla-III, and Fatehgarh-II substations in Rajasthan to evacuate over 20 GW of mega solar park generation.

- **Publish Date:** 2026-09-28
- **Category:** transformers-grid
- **Reading Time:** 5 min
- **Original Source Citation:** [Power Grid Corporation of India Limited (POWERGRID) & Central Electricity Authority](https://www.powergrid.in/en/news-press-releases/powergrid-augments-765kv-substations-rajasthan-solar-evacuation)
- **Tags:** POWERGRID, 765 kV Transformer, Interconnecting Transformer, Bhadla Solar Park, Rajasthan, Synchronous Condenser, India Grid, Renewable Evacuation
- **Canonical URL:** https://voltformer.com/news/powergrid-india-augments-765kv-substations-bhadla-ramgarh-fatehgarh-solar-corridors
- **Markdown Source:** https://voltformer.com/news/powergrid-india-augments-765kv-substations-bhadla-ramgarh-fatehgarh-solar-corridors.md

## Super-Grid Transformation in the Thar Desert

Western Rajasthan hosts some of the world’s largest ultra-mega solar power parks, including the sprawling Bhadla and Fatehgarh complexes. To handle sudden solar generation surges and wheel electricity across the Inter-State Transmission System (ISTS) to northern and western industrial states, POWERGRID executed major substation capacity expansions.

At Ramgarh and Kanpur (PG), new banks of single-phase 765/400 kV 500 MVA autotransformers (forming 1,500 MVA three-phase banks) were energized, manufactured under domestic Make-in-India programs with high-permeability CRGO steel cores and automated online moisture management.

## Synchronous Condensers for Short-Circuit Strength at Fatehgarh-II

Because the massive concentration of grid-following solar inverters drastically suppressed the regional Short-Circuit Ratio (SCR) to near-critical thresholds (<1.8), POWERGRID integrated utility-scale synchronous condensers at the Fatehgarh-II 765 kV pooling substation.

The synchronous condensers inject instantaneous dynamic reactive power and physical rotational inertia, stabilizing grid frequency during sudden cloud cover transients and high-voltage line faults.

## Pioneering 765 kV Double-Circuit Line Corridors

The substation augmentations operate in synchrony with the newly commissioned 765 kV double-circuit Ramgarh–Bhadla III transmission line, creating an ultra-robust 765 kV ring that slashes transmission losses by 22% compared to parallel 400 kV circuits.

The commissioning keeps India firmly on track toward its national target of 500 GW of non-fossil generation capacity by 2030.

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