IC3600AAIB1 - Analog Interface Card

SPECIFICATIONS

Part No.: IC3600AAIB1
Manufacturer: General Electric
Product Type: Analog Interface Card
Availability: In Stock
Series: VersaMax

Functional Description

IC3600AAIB1 is an Analog Interface Card developed by GE. It is a part of GE Mark I and II series. The board functions as an interface between analog input signals and the digital control logic of the system. It is responsible for receiving, conditioning, and transmitting analog data such as temperature, pressure, flow, or speed measurements from various turbine sensors to the main control processor.

Protective Systems - Ensuring Safety and Operational Integrity

To ensure maximum reliability and safety, the turbine’s protective system is designed with a high level of redundancy. This architectural approach ensures that no single point of failure can jeopardize the safe operation of the turbine. Critical protective actions—such as shutting off fuel to the turbine—are managed by at least two independent methods, thereby creating a strong safety net.

• Fuel Shutoff Redundancy: The system includes multiple shutoff valves, which are hydraulically operated and controlled by redundant electronic circuits. This design ensures that even if one electronic path or sensor fails, another can take over to reliably command the fuel shutoff, preventing unsafe turbine operation.
• Hydromechanical Backup Protection: For heavy-duty turbine units, an additional hydromechanical trip system is included. This system provides an extra layer of protection against:
  • Overspeed events
  • Loss of lubrication oil pressure
  • Manual trip commands
  • As it is mechanically actuated, the hydromechanical system operates independently of the electronic circuits, making it especially valuable as a fail-safe mechanism in case of total electrical or electronic failure.
• Redundant Sensing and Processing: The sensors that feed into the electronic protective system are also arranged with redundancy. Signals from these sensors are routed through dual channels, each connected to separate electronic trip systems. This dual-path arrangement guarantees that even if one set of electronics malfunctions or one signal path is compromised, the other can still execute protective functions without delay.
• System Coordination: Outputs from the redundant protective electronics are continuously monitored and coordinated. Only if both trip channels concur on a dangerous condition—such as overspeed or critical temperature rise—will a trip command be issued. This logic helps avoid nuisance trips while still ensuring immediate action in truly hazardous conditions. 

The WOC team is always available to help you with your Mark I and II requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IC3600AAIB1?
It is an Analog Interface Card developed by GE.

How is the control system itself protected?
The control system is monitored for internal failures like power supply issues. If such a failure occurs, the system will safely shut down the turbine to prevent damage or unsafe operation.

Does every fault cause a turbine shutdown?
No. Only faults that compromise both redundant safety channels or critical control system functions will trigger a shutdown. Single faults result in alarms but allow the turbine to continue running under supervision.