400 kV Extension – Testing & Commissioning

Project Overview

Scope, location and technical context

Grand Line delivered high-voltage testing and commissioning support for a 400 kV extension at Mosul Dam, covering equipment inspection, protection testing and energization support.

Location Mosul Dam

Sector Power Transmission / HV

Project 04

Scope of Work

400 kV Equipment Inspection
HV Switchgear Testing
Circuit Breaker Testing
CT / VT / CVT Testing
Transformer Testing
Protection Testing
Control System Verification
Cable Testing
Insulation Testing
Earthing
Interlock Testing
Commissioning & Energization Support

Engineering

Review of HV test plans, protection settings coordination and control system verification sequences for 400 kV equipment.

Construction

Inspection of installed HV equipment, switchgear interfaces, cabling and earthing prior to testing.

Testing

HV switchgear, circuit breaker, CT / VT / CVT, transformer, protection, cable, insulation, earthing and interlock testing.

Commissioning

Commissioning and energization support to bring the 400 kV extension into service under controlled procedures.

Visual record