Nabinagar Power Generating Company
  • Home
  • Nabinagar Power Generating Company

Supply, installation of 1600 KVA 33KV/433 V Package Substation for NSTPP, Stage I (3X660MW)

  • Client: Nabinagar Power Generating Company

  • Scope of Work

Project Overview

The Nabinagar Power Generating Company, a joint venture between NTPC Ltd and Bihar State Power Generation Co. Ltd, is undertaking a significant project to enhance its power generation capabilities. The project, located in Nabinagar, Bihar, involves the supply and installation of a 1600kVA, 33kV/433V package substation for the Nabinagar Super Thermal Power Project, Stage-I (3×660 MW).

Detailed Scope of Work

Equipment Supply

  • Design and Manufacturing: The project includes the design and manufacturing of a 1600kVA package substation, complete with all necessary accessories. The substation is designed to be compact and suitable for outdoor installation
  • Components:
    • – 33 KV H.T. Panel with Vacuum/SF-6 circuit breaker (fixed type).
    • – 1600KVA, 33kV/433V hermetically sealed oil-insulated transformer.
    • – L.T. Switchboard.
    • – Earthing connections and strips inside the compact substation.
Technical Specifications
    • Protection and Safety:
      • – Degree of protection for HT & LT switchgear compartments must be IP55 or better.
      • – Interlocks to prevent opening of any compartment doors when the incoming supply is ON.
      • – Protection scheme to safeguard operators working on the cable side from back charging.
        • Transformer Specifications:
        • – Oil-immersed type with a 1600KVA rating.
        • – Rated voltage: 33KV (HV) and 433V (LV).
        • – Rated frequency: 50Hz.
        • – Vector group: Dyn1/Dyn11.
        • – Cooling type: ONAN.
        • – Insulation class: A/Uniform.
      • Circuit Breaker Specifications
      • – Rated voltage: 33KV rms.
            • – Operating voltage: 36KV rms.
            • – Insulation level: 70KV rms.
            • – Rated impulse withstand voltage: 170KV peak.
            • – Rated current: 630A.
            • – Short time current capacity: As per relevant IS/IEC standards.
Installation and Commissioning 
    • Site Preparation:
      • – Civil foundation and earthing works.
      • – Supply and fixing of 33kV isolators.
      • – Supply and laying of 33kV and LT cables.
        • Installation:
        • – Loading, transportation, and unloading at the site.
        • – Installation of the substation and all associated equipment.
        • Commissioning:
        • – Comprehensive testing and commissioning to ensure all systems are operational and meet the required standards.
        • – Safety checks and final inspections to ensure compliance with all technical specifications.

Our Projects

Challenges and Solutions

Technical Challenges
  • Complex Technical Specifications: The project required adherence to stringent technical specifications, including specific protection levels and safety features
  • Solution: Our team of experts worked closely with Nabinagar Power Generating Company to ensure all specifications were met. Detailed technical plans and quality checks were implemented at every stage of the project.
Logistics and Transportation
  • Remote Location: The project site in Nabinagar, Bihar, posed logistical challenges due to its remote location.
  • Solution: We coordinated with local suppliers and transportation partners to ensure timely delivery of all components. Regular updates and communication with the project team helped in managing logistics efficiently.
Safety and Compliance
  • Safety Standards: Ensuring the safety of workers and compliance with all relevant labor laws and safety regulations was a critical aspect of the project.
  • Solution: Ensuring the safety of workers and compliance with all relevant labor laws and safety regulations was a critical aspect of the project.
Environmental Considerations
  • Environmental Impact: :The project had to minimize its environmental footprint while ensuring efficient power generation.
  • Solution: We adopted eco-friendly practices, such as using sustainable materials and minimizing waste. Regular environmental audits were conducted to ensure compliance with environmental regulations.

Conclusion

The successful completion of the supply and installation of the 1600kVA, 33kV/433V package substation for the Nabinagar Super Thermal Power Project demonstrates our commitment to delivering high-quality, reliable power solutions. By overcoming various challenges through meticulous planning, adherence to technical specifications, and a focus on safety and compliance, we have contributed to enhancing the power generation capabilities of Nabinagar Power Generating Company.