Project overview
The port of Maribaya, an important base for Guinea's Simandou Iron Ore Mine, is located on the east bank of the upper Maribaya River in Forecariah Prefecture, Conakry. It borders the southeastern Atlantic Ocean, is approximately 25 nautical miles from Conakry, and has a tropical rainforest climate (24-32°C average annual temperature).
Phase I: Iron ore shipping via barge + offshore lighting, throughput of 70M tonnes. 4 berths (12k ton class) and gangways to be built.
Phase II: Planter deep-water port for 325,000-ton dumpers with a throughput of 80M-100M tpy.
project requirements
• Acquisition of data from 10kV substation
• Implement remote status monitoring, remote measurement, and remote control between high- and low-voltage cabinets.
• Uploading data to the shipping system
Project solution
10kV input cabinet (Acrel AM5SE-F protection):
Undervoltage blocked overcurrent protection → Trip
Earth fault protection → Signal
10kV bus coupling cabinet (Acrel AM5SE-B protection):
Overcurrent protection → Trip
Fast transmission circuit for bus binding intervention
10kV PT cabinet (Acrel AM5SE-UB protection):
PT Parallel Protection
10kV Transformer Feeder Cabinet (Acrel AM5SE-T):
Instant current protection, temperature protection and overcurrent protection → Trip
Overload / Earth fault protection → Signal
Local panels:
Monitoring host + RTU panel
Real-time data upload to the shipping center
Platform function
Monitoring Host Panel;
Performs data acquisition from 10kV switchgear components, including;
Protective relays, measuring and control units, DC power supply panels, other intelligent devices
Key functions: Telemetering (YA), Remote Display (YX), Remote Control (YK), Alarms, Reporting, Switchover Order Management and Fault Management
Dispatching Data Network Panel;
Transmits SCADA data to all shipping layers via:
- Special point-to-point channels
- Station-level data network access equipment
platform
