Subsea Power & Control Systems

Operational Benefits

Reliable Control Where Access Is Limited

Subsea systems must continue operating where maintenance access is difficult and the consequences of equipment failure can be significant.

Benefits

• Power, hydraulics, drives, sensors, telemetry and control engineered as one coordinated system, reducing interface risk between vessel, topside and subsea equipment.
• Systems designed around the specific equipment and operating conditions, including depth, temperature and corrosive environments.
• Electrical studies that establish how high-power subsea equipment will affect the vessel network before it is connected, including load behaviour, fault levels and harmonics.
• Drive systems that control starting, braking and regenerated power from hydraulic power units, pumps, motors and winches, protecting power quality on the vessel.
• Clear equipment status, alarms, interlocks and diagnostics through integrated PLC, SCADA and operator interfaces, with remote monitoring to support faster fault finding.
• Containerised power and control packages built and tested onshore, reducing offshore commissioning time and allowing redeployment across vessels and projects.
• Motion-compensated launch and recovery using MJR's X-Wave™ active heave compensation and constant-tension control for ROV and trencher LARS.
• Maintainable drive, control and distribution architectures that simplify maintenance, upgrades and obsolescence management over the equipment's life.
• Ongoing service, repair and upgrade support, including for third-party subsea electrical equipment, to minimise downtime.