Emergency Shutdown System (ESD)
The XT-USSL-ESD-T/N Universal Linked Emergency Shutdown System is an advanced marine safety solution developed by XTronica AS for tanker, chemical tanker, LPG, LNG, and LNG-fueled vessels. The system provides synchronized emergency shutdown control between ship-to-shore and ship-to-ship transfer operations, ensuring safe cargo handling and bunkering activities while minimizing operational risks.
Description
Designed to comply with internationally recognized marine safety requirements and industry recommendations, the XT-USSL-ESD-T supports oil, chemical, and LPG transfer operations, while the XT-USSL-ESD-N is specifically developed for LNG cargo transfer and LNG bunkering applications. The system enables automatic and coordinated shutdown actions on both connected parties, ensuring safe isolation of transfer operations during abnormal or emergency conditions. Built on XTronica's proven marine automation platform, the XT-USSL-ESD-T/N utilizes the company's 4th Generation IoT-based Application Logic Controller (ALC) and X-SCADA control system to deliver reliable monitoring, intelligent control, and advanced safety functionality for marine and offshore applications.
Models
XT-USSL-ESD-T
- Tankers
- Chemical Tankers
- LPG Carriers
- Oil & Chemical Transfer Applications
XT-USSL-ESD-N
- LNG Carriers
- LNG Bunkering Facilities
- LNG-Fueled Vessels
- LNG-Fueled Vessels
Applications
- Ship-to-Shore Cargo Transfer
- Ship-to-Ship Transfer Operations
- Oil Transfer Systems
- Chemical Cargo Transfer
- LPG Cargo Transfer
- LNG Cargo Transfer
- LNG Bunkering Operations
- LNG-Fueled Vessel Operations
- Marine Terminals
- Offshore Transfer Facilities
Key Features
- Universal linked Emergency Shutdown System
- Ship-to-shore and ship-to-ship compatibility
- Bi-directional ESD communication
- Simultaneous shutdown activation on both connected systems
- Fail-safe system architecture
- Automatic emergency shutdown functionality
- Manual ESD activation capability
- Continuous health and status monitoring
- Visual and audible alarm indication
- Intelligent IoT-based control platform
- X-SCADA monitoring and control interface
- High system reliability for marine and offshore environments
Supported communication interfaces
The XT-USSL-ESD-T/N supports multiple industry-standard connection methods for maximum interoperability:
- Pneumatic Link
- SIGTTO 5-Way Twisted Electric Cable
- 37-Way Electric Cable
- 2-Core Fiber Optic Cable
- 6-Core Fiber Optic Cable
- Wireless Umbilical Link
This flexible architecture ensures compatibility with a wide range of vessel and terminal ESD systems.
System capabilities
Linked emergency shutdown
Provides synchronized emergency shutdown activation between connected ship and shore facilities, ensuring coordinated and safe transfer termination.
Intelligent monitoring
Continuously monitors system status, power availability, communication integrity, and operational conditions throughout cargo transfer operations.
Automatic safety protection
Automatically initiates shutdown procedures when predefined safety criteria or emergency conditions are exceeded.
Alarm & diagnostics
Provides clear visual and audible alarm indication for emergency shutdown events, communication failures, and system faults.
Remote monitoring & control
Utilizes XTronica's ALC Controller and X-SCADA platform for centralized monitoring, diagnostics, and operational management.
Xt-ussl-esd-n lng safety functions
The XT-USSL-ESD-N is specifically designed to support LNG transfer and bunkering operations and provides:
- Bi-directional LNG bunkering safety link
- Simultaneous ESD activation on vessel and bunkering facility
- Fail-safe system operation
- Cross-activation of connected ESD systems
- Automatic shutdown based on predefined initiators
- Health monitoring of connected systems
- Monitoring of power supply and communication integrity
- Suitable electrical classification and environmental protection ratings
- Visual and audible emergency alarms
- Independent and linked system testing capabilities
Additional communication functions
The system can support:
- Hotline voice communication
- Data exchange between connected parties
- Operational status sharing
- Diagnostic information transfer
Available through:
- 37-way electric cable
- 2-core fiber optic cable
- 6-core fiber optic cable
Compliance & standards
The XT-USSL-ESD-T/N is designed to support compliance with:
- OCIMF (Oil Companies International Marine Forum)
- SIGTTO (Society of International Gas Tanker and Terminal Operators)
- SGMF (Society for Gas as a Marine Fuel)
- IGC Code
- IGF Code
- Marine industry ship/shore ESD recommendations
Benefits
- Enhanced cargo transfer safety
- Coordinated emergency shutdown response
- High interoperability with third-party systems
- Improved operational reliability
- Reduced risk during transfer operations
- Flexible communication interface options
- Intelligent monitoring and diagnostics
- Suitable for oil, chemical, LPG, LNG, and bunkering applications
- Proven marine and offshore technology platform
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