Power Transmission, High-Voltage & Automation

Torrent Power Substation Infra

High Voltage Switchyard, Step-Down Transformers & Synchronized SCADA Automation

The Torrent Power Substation Infrastructure project involved the engineering, procurement, civil construction, and commissioning of a mission-critical 132kV/33kV high-voltage electrical substation and automated switchyard designed to power expanding heavy manufacturing zones across Western India.

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CompletedCAPEX: ₹210 Cr

Client / Enterprise

Torrent Power

Power Utility & Energy Infrastructure Corporation

Project Location

Western India Industrial Grid, Gujarat

Industrial Corridor

Commissioning Year

2024

Completed

Delivery Model

Comprehensive Power Infrastructure EPCM

Single-Point Accountability

Comprehensive Project Profile

Torrent Power Substation Infra

The Torrent Power Substation Infrastructure project involved the engineering, procurement, civil construction, and commissioning of a mission-critical 132kV/33kV high-voltage electrical substation and automated switchyard designed to power expanding heavy manufacturing zones across Western India.

Valoris Turnkey Solutions orchestrated the complete lifecycle from switchyard earthmat design and high-voltage transformer foundations to Gas-Insulated Switchgear (GIS) installations, lightning protection grids, and centralized IEC-61850 compliant SCADA automation dashboards.

Operating in proximity to live grid infrastructure, our electrical engineering desk implemented zero-incident safety protocols, completed rigorous CEIG testing ahead of deadlines, and synchronized the substation seamlessly with the regional state electrical transmission corporation.

Engineering Challenge

Engineering and commissioning a high-voltage 132kV transmission switchyard in a high-density industrial corridor with zero disruption to adjoining municipal power feeds and stringent grid code compliance.

Valoris Turnkey Solution

Implemented modular Gas-Insulated Switchgear (GIS) technology to minimize physical footprint by 60%, deployed automated relay protection schemes, and pre-commissioned SCADA telemetry in parallel with civil construction.

Execution Performance Metrics

Project CAPEX

₹210 Cr

Completed Power EPCM

Voltage Rating

132kV / 33kV

Transmission Grid

Transformer Capacity

2 x 50 MVA

Power Step-Down

Protocol

IEC 61850 SCADA

Remote Telemetry

Technical Scope Breakdown

On-Site Engineering & Execution Scope

Detailed breakdown of multi-disciplinary work packages executed under single-point Valoris management.

Work Package 01

Switchyard Civil & Foundation Infrastructure

Heavy reinforced concrete plinths for 50 MVA transformers, fire barrier blast walls, oil soak pits with oil-water separators, and deep grounding grid.

Key Scope Items:

  • Vibration-damped concrete transformer foundation pads
  • Emergency transformer oil catchment & containment pits
  • Switchyard perimeter security fencing and drainage network
Work Package 02

Power Transformers & GIS Switchgear

Rigging, testing, and cabling of two 50 MVA 132kV/33kV power transformers, 132kV SF6 gas-insulated switchgear, and 33kV indoor vacuum circuit breakers.

Key Scope Items:

  • Two 50 MVA 132kV step-down power transformers energized
  • 132kV GIS bay with integrated disconnectors and surge arrestors
  • 33kV indoor distribution switchboard with bus coupler
Work Package 03

Substation Automation & SCADA Control

Centralized control room with redundant optical fiber telemetry, digital numerical protection relays, event recorders, and IEC-61850 protocol dashboards.

Key Scope Items:

  • Full-redundancy SCADA control desk with remote trip commands
  • Numerical distance, differential, and overcurrent relay panels
  • 110V DC battery bank and uninterrupted station power supply
Work Package 04

CEIG Inspections & Statutory Grid Energization

Complete statutory inspection coordination with the Chief Electrical Inspector to Government (CEIG), utility grid synchronization, and handover.

Key Scope Items:

  • CEIG Statutory Inspection Report & Safety Sanction
  • State Transmission Utility Grid Interconnection Clearance
  • Comprehensive Relay Coordination & Trip Test Dossier

Lifecycle Roadmap

Milestone Execution Timeline

Structured progression from DPR feasibility and civil engineering to testing and commercial energization.

Phase I · Q1 2024

Load Studies, CEIG Sanction & Civil Plinths

Load flow studies, CEIG electrical drawings approval, earthmat grid installation, and heavy transformer plinth casting.

CEIG Drawing ApprovalEarthmat Resistance < 0.5 OhmPlinth Cured
Phase II · Q2 2024

Transformer Rigging & GIS Erection

Precision rigging of 50 MVA transformers, gas-insulated switchgear assembly, SF6 gas charging, and busduct connections.

Transformers PlacedGIS Vacuum & SF6 SealedGantry Erected
Phase III · Q3 2024

Control Cabling & SCADA Programming

Fiber optic routing, numerical relay wiring, SCADA software parameterization, and simulated fault trip testing.

Relay Scheme ValidatedSCADA Communication LiveDC Bank Charged
Phase IV · Q4 2024

CEIG Inspection, Grid Sync & Energization

Official CEIG inspection, high-voltage trial charging, live utility grid synchronization, and final handover.

CEIG Energization PermitGrid Sync SuccessfulCommercial Operation

Verification & Handover

Tangible Deliverables & Statutory Approvals

Comprehensive technical documentation, operational licenses, and verified compliance certificates.

Scope of Delivery

Technical Deliverables

  • Fully energized 132kV/33kV dual-transformer electrical substation
  • Two 50 MVA step-down power transformers with automatic on-load tap changers
  • Complete IEC-61850 compliant SCADA Control Room with remote telemetry
  • Chief Electrical Inspector to Government (CEIG) statutory energization sanction
  • State Electricity Transmission Corporation synchronization certificate
  • As-Built electrical schematics, protection settings, and maintenance schedules

Statutory Clearances

  • Chief Electrical Inspector to Government (CEIG) Statutory Sanction
  • State Electricity Transmission Utility Interconnection Sanction
  • Local Municipal Building & Electrical Safety NOC
  • Pollution Control Clearance for Transformer Oil Containment

Strategic Commercial Impact

  • Powers over 45 industrial manufacturing plants with uninterrupted 99.99% grid reliability.
  • Reduces transmission line loss by an estimated 4.2% through low-loss GIS design.
  • Zero safety incidents across 320,000 safe man-hours during live grid operations.

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