Substation & Switchyard Services
PN Infra provides comprehensive Substation & Switchyard Services for high-voltage power transmission and distribution projects. Our capabilities cover the complete project lifecycle, from engineering and civil works to equipment erection, electrical installation, protection and control, testing, commissioning, and maintenance.
Our Scope of Work
⚡ Substation Engineering & Design
Planning, engineering, equipment layout, electrical design, cable routing, earthing arrangements, and project-specific technical documentation.
🏗️ Civil & Foundation Works
Site development, equipment foundations, transformer foundations, cable trenches, drainage, control-room works, roads, and other supporting infrastructure.
⚙️ Switchyard Construction & Erection
Erection of gantry structures, equipment support structures, busbar supports, steel structures, and associated switchyard components.
🔌 Electrical Equipment Installation
Installation and erection of transformers, circuit breakers, isolators, CTs, PTs/VTs, surge arresters, insulators, busbars, and other high-voltage equipment.
🛡️ Protection & Control Systems
Installation and integration of protection relays, control panels, trip circuits, interlocking systems, alarms, indications, and monitoring systems.
🧪 Testing & Commissioning
Inspection, electrical equipment testing, relay testing, functional verification, system integration checks, and commissioning support before energization.
🔧 Operation & Maintenance
Inspection, preventive maintenance, troubleshooting, equipment checks, and technical support to help maintain reliable substation and switchyard performance.