High voltage Substations Design
Our engineering services for High voltage AIS/GIS substation projects are structured to deliver a fully integrated, standards‐compliant, and technically robust solution. The scope includes:
- Work Breakdown Structure & Document Control
- Project Management & Resource Planning
- Substation General & Equipment Layouts
- Single Line Diagrams (SLDs)
- Bill of Quantities (BOQ) Extraction
- Equipment Data Evaluation
- Lightning Shielding Design & Analysis
- CT/VT Sizing Calculations
- Battery Sizing & HVAC Load Calculations
- Civil Coordination
- Cable Routing & Duct Bank Design
- Vendor Coordination & Engineering Integration
Referenced Standards
- IEC 62271‐203 – GIS for rated voltages above 52kV
- IEC 62271‐100 – High‐voltage AC circuit breakers
- IEC 60044 / IEC 61869 – Instrument transformers
- IEEE Std 998 – Lightning protection for substations
- IEC 60896 – Stationary lead‐acid batteries
- IEC 60068 – Environmental testing for HVAC design
- IS 1893 – Seismic design considerations (for Zone IV compliance)
NETRASERV offers advanced secondary engineering services through a team of seasoned professionals specializing in protection, control, and automation systems for high‐voltage substations. Our scope is designed to ensure reliability, operational safety, and eamless integration of intelligent systems across all
project phases.
Key Scope Elements:
Protection & Metering Single Line Diagrams (SLDs)
Trip & Interlocking Logic Design
Substation Metering, Alarm, & Tele‐Information Plans
Protection Schematics & Panel Drawings. Design of detailed schematics Including
development of fabrication‐ready panel internal wiring, external interfaces and shop floor layout drawings.for:
- Power transformers (differential, REF, OLTC control)
- Overhead/underground cables and busbars (distance, directional, overcurrent)
- Breaker failure and back‐up protection
Signal exchange planning and detailed interface wiring between primary switchgear, GIS modules, control equipment, and third‐party OEM systems.
Preparation of comprehensive wiring schedules, marshalling and terminal plans, ferrule coding, and cross‐reference matrices for panel‐shop and field teams.
Fault studies, short‐circuit analysis, and graded protection strategies using software such as ETAP or DIgSILENT PowerFactory, with settings aligned to project‐specific performance requirements and grid codes.