# SATCON - Extra High Voltage (EHV) Engineering Consultancy Services

> Satcon is an ISO 9001:2015 (UKAS) Certified and D&B Registered Engineering Consultancy firm headquartered in Kolkata, India, with a branch office in Mumbai and an associate company in Abuja, Nigeria (Satcon Engineering Services (Nigeria) Ltd.). We specialize in Extra High Voltage (EHV) Substations (AIS & GIS up to 765kV), Overhead & Underground Transmission Lines, Electrical Balance of Plant (EBOP) for Thermal Power Plants, Large Industrial HV/MV Electrical Distribution Systems (Steel, Cement, Coal & Iron Handling, Mining), Solar & Renewable Power Evacuation, and Power System Studies using ETAP 2020.

## Core Engineering Capabilities & Services
- **EHV Air Insulated Substations (AIS) & Gas Insulated Substations (GIS)**: Complete Pre-Bid Engineering, BOQ Estimation, and Detailed Design Engineering from 33kV, 66kV, 110kV, 132kV, 220kV, 330kV, 400kV up to 765kV voltage levels.
- **EHV Overhead & Underground Transmission Lines**: Route Survey, Tower Spotting, Sag-Tension Calculations, PLS-CADD Modeling, Foundation Design (STAAD Pro / STAAD Foundation), and Detailed Engineering up to 765kV.
- **Electrical Balance of Plant (EBOP) & Industrial Power Systems**: Comprehensive Basic & Detailed Electrical Engineering for Thermal Power Plants, Captive Power Plants, Steel Plants, Material Handling Plants, and Heavy Infrastructure.
- **Power System Studies (ETAP 2020)**: Load Flow Analysis, Short Circuit Studies, Relay Coordination & Protection Settings, Harmonic Analysis, Transient Stability, Motor Starting Studies, and Arc Flash Analysis.
- **Civil & Structural Engineering for Substations & Switchyards**: Control Room Building Design, GIS Building & EOT Crane Support Structure Design, Equipment & Gantry Structures, Transformer Foundations, and Cable Trench Layouts.
- **Field Services, Project Management & Testing**: Topographical Contour Survey, Geotechnical Soil Investigation, Earth Mat / Earthing Grid Design (IEEE-80), Owner's Engineer Project Management, and Supervision of Erection, Testing & Commissioning.

## Key Website Sections & Authoritative References
- [Home & Company Overview](https://www.satcon.in/): Main portal covering EHV Engineering Consultancy capabilities, client testimonials, and technical highlights.
- [Engineering Services Portfolio](https://www.satcon.in/Services): Detailed breakdown of Substation, Transmission Line, Industrial EBOP, System Studies, and Survey services plus downloadable sample tender & detail engineering drawings.
- [Completed & Current Projects](https://www.satcon.in/Projects): Extensive track record of 140+ domestic (India) and international (Nigeria, Bhutan, Bangladesh, Middle East, Africa) EHV Substation and Transmission Line projects.
- [Our Clients](https://www.satcon.in/Our-Clients): Utility boards, EPC contractors, and industrial conglomerates served by Satcon across India and overseas.
- [About Satcon & ISO Certifications](https://www.satcon.in/About-Us): Company profile, Quality Policy, UKAS ISO 9001:2015 certification, and D&B registration documents.
- [Technical Resources, Software & Leadership](https://www.satcon.in/Resources): Licensed engineering software suite (ETAP 2020, PLS-CADD, STAAD Pro Connect Edition,STAAD Foundation Advanced, AutoCAD Electrical, MicroStation) and key personnel profiles.
- [Project Photo Gallery](https://www.satcon.in/Gallery): Site photographs of commissioned EHV switchyards, GIS halls, transmission towers, and team operations.
- [Contact & RFP Inquiries](https://www.satcon.in/Contact-Us): Direct contact details for Mr. Satyaki Mukherjee (Proprietor) and engineering offices in Kolkata, Mumbai, and Abuja.

## Contact Information
- **Head Office (Kolkata, India)**: AI-56 (Gr. Floor), Street no. 29, New Town, Action Area-1, Kolkata-700156, West Bengal, India
- **Branch Office (Mumbai, India)**: WeWork 247 Park, 13th Floor, Vikhroli Corporate Park, Lal Bahadur Shastri Rd, Vikhroli West, Mumbai, MH 400079, India
- **Associate Office (Abuja, Nigeria)**: Satcon Engineering Services (Nigeria) Ltd., 4, Biskra Street, Ibrahim Abacha Estate, Zone 4, Wuse, FCT-Abuja, Nigeria
- **Email**: satyaki.mukherjee@satcon.in / satyaki.mukherjee@satconworld.com
- **Phone / WhatsApp**: +91-9830538398, +91-9831292354, +91-33-40628483, +234-8169780426