We are the experts in Substation Testing and Commissioning, Substation Modification works, Relay and Control panels & Switchgear Factory testing.

Our Testing Engineers have an extensive experience with multinational companies like ABB, AREVA and SIEMENS and have completed many site service for all Saudi Electricity Company (SEC) regions, at all voltage levels.

Team of Experienced Engineer in all protection relays, protection and control scheme and network applications are deputed for site activities. Our Testing team has extensive experience in configuration of all numerical relays.

We have the latest state-of-the art test equipments to successfully carry out the site activities. Our main objectives are quality and on-time completion along with the customer satisfaction.

Power Flow Contracting Company’s Internal Quality System is based on our experience with multinational companies and is aimed to eliminate errors completely.


– On-site testing and commissioning for the following substation equipment:

• Power Transformer
• Capacitor Bank
• Reactor
• Protection and Control Panels
• Medium Voltage Switchgear
• AC/DC Panels
• HV and MV Cables
• Substation Auxiliaries

– Following site modification activities for Protection & Control Panels and MV Switchgear:

• Modification of Design of existing drawings
• Reproduction of existing schematics
• Dismantling of existing materials
• Mounting & Wiring of new equipment
• Point-to-Point test
• Functional Test
• AC/DC Supply Wiring Check
• CT/VT Wiring & Characteristics Check
• Scheme Test
• End-to-End test
• Site Snag Clearance

– Following factory routine test activities for Protection & Control Panels and MV Switchgear:

• Visual Inspection
• Continuity Test
• HV Insulation Test
• Relay Configuration
• Secondary Injection & Relay Functional testing
• Scheme test
• Factory Acceptance Test
• Submission of Short / Defective Materials List

Specific references for the projects can be provided on request.