DS200RT8AG3AHC Relay Output Terminal Board
DS200RT8AG3AHC Relay Output Terminal Board
GE Electric | DS200RT8AG3AHC | Relay Output Terminal Board
Product Description:
The GE DS200RT8AG3AHC is a Relay Output Terminal Board for the Mark VI gas/steam turbine control system.
It provides configurable relay outputs to interface between the controller and high-power field devices (e.g., actuators, pumps), enabling critical shutdown and safety functions in power generation applications.
Feature
Specification / Description
Manufacturer
GE Power Conversion (formerly GE Industrial Systems)
Series
Mark VI Speedtronic™ Turbine Control System
Part Number
DS200RT8AG3AHC
Board Type
Relay Output Terminal Board
Channels
8 relay channels (Form C contacts)
Contact Rating
5A @ 30VDC / 250VAC (resistive)
Max. Switching Power
62.5W DC / 1250VA AC
Contact Material
Silver Alloy (AgCdO)
Isolation Voltage
1500V AC (channel-to-channel)
Response Time
≤10 ms (operate/release)
Connection Type
Screw terminal blocks (14-22 AWG)
Status Indication
LED per channel (relay state)
Mounting
DIN rail or panel mount
Operating Temp.
-40°C to +85°C
Compliance
UL 508. CE, RoHS
Key Features:
Form C Contacts – SPDT (Single-Pole Double-Throw) with NO/NC options for failsafe design.
High Surge Handling | Withstands 100A inrush (10 ms) for motor/starter control.
Galvanic Isolation | 1.5kV between coils/contacts and logic circuits.
Hot-Replacement | Supports live swap in Mark VI racks without shutdown.
Diagnostic LEDs | Real-time channel status monitoring.
Redundancy Support | Compatible with dual-processor Mark VI configurations.
Primary Function & Purpose:
Acts as a high-power interface between Mark VI controllers and field devices to:
Execute turbine emergency shutdowns (ESD) and permissives.
Control auxiliary systems (lube oil pumps, cooling fans).
Trigger alarms/annunciators based on protection logic.
Typical Applications:
Turbine Protection – Trip solenoid valves on overspeed/vibration events.
Fuel Systems – Shut off gas/fluid supply valves during faults.
Generator Control – Enable/disable excitation systems.
Cooling Circuits – Start/stop auxiliary coolant pumps.
Fire Suppression – Activate deluge systems during emergencies.
Application Fields:
Critical for power generation safety systems in:
Gas Turbine Plants: GE Frame 5/6/7/9 series control cabinets.
Steam Turbines: Boiler feed pump trips, condenser vacuum protection.
Hydroelectric Plants: Gate actuator control, brake systems.
Compressor Stations: Pipeline emergency shutdown (ESD) systems.
Industrial Co-Gen: Backup generator synchronization control.
