Air Circuit Breaker (ACB) Testing – Dubai Drydocks

Proud to highlight another successful project delivered by our team — comprehensive testing, inspection, and servicing of Air Circuit Breakers (ACBs) onboard a vessel undergoing maintenance at Dubai Drydocks.

The photos reflect the important operational stages carried out during the ACB testing, including

• Detailed internal inspection of Schneider Electric Master Pact ACB units
• Verification and calibration of Micrologic trip units
• Primary injection testing using certified equipment
• Mechanical functional checks, synchronization, and interlock testing
• Strict adherence to LOTO (Lockout–Tagout) procedures to ensure maximum safety during operations

Every step — from opening and isolating the breaker to performing protection relay tests and confirming correct trip characteristics — reinforces our commitment to precision, reliability, and marine safety standards.

These breakers are crucial for protecting high-capacity marine electrical systems, especially for critical loads such as thrusters and propulsion support. Ensuring their performance is essential for uninterrupted operation at sea.

A big appreciation to our skilled technicians for completing the task with professionalism, expertise, and strict compliance with safety protocols.

Always ready to support our marine and industrial clients with

• ACB/VCB/GCB Testing & Servicing
• Electrical Troubleshooting & Maintenance
• Marine Automation & Power System Solutions