Emergency Overspeed Board DS200TCEAG1B | GE Mark V Series Component

Product Description

The GE General Electric DS200TCEAG1B / DS200TCEAG1BTF Emergency Overspeed Board delivers dependable digital I/O performance within Mark V turbine control systems. It collects field contact inputs and drives precise output actions for critical protection sequences, allowing turbines to respond rapidly during overspeed or abnormal operating conditions. Moreover, its rugged construction ensures stable operation in demanding industrial environments where continuous reliability is essential.

This board integrates directly with the Mark V system through the VME backplane, enabling fast communication with core processors. In addition, diagnostic LEDs support quick troubleshooting and offer clear visibility of real-time channel status. Engineers familiar with GE Speedtronic systems value this module’s durable design, wide operating temperature range, and consistent performance under high electrical and mechanical stress. Therefore, it serves as a practical replacement option for aging installations that require proven compatibility and stable long-term functionality.

Technical Specifications

Function
Provides digital I/O interface between field devices and Mark V control processors

Inputs
Contact inputs, typically 24 VDC, from switches, sensors, and turbine interlocks

Outputs
Digital outputs to relays, solenoids, and actuator circuits

Communication
Interfaces with processors through VME backplane

Diagnostics
LED indicators, self-test routines, and fault detection capabilities

Redundancy
Supports redundant configurations for high-availability systems

Operating Voltage
24 VDC nominal

Operating Temperature
–40 °C to +70 °C

Storage Temperature
–40 °C to +85 °C

Dimensions
168 × 150 × 55 mm

Weight
Around 1 lb (0.45 kg)

Mounting
Standard installation within Mark V racks

Overview

The DS200TCEAG1B and DS200TCEAG1BTF models are widely recognized by turbine engineers for their stable performance and predictable behavior in overspeed protection systems. Their design supports both gas and steam turbine platforms, allowing operators to maintain consistent protection logic across fleets of varying size and age. Moreover, field technicians appreciate how quickly these boards install and configure, streamlining maintenance routines during scheduled outages. This board offers a meaningful upgrade path for operators seeking to improve reliability without modifying existing Mark V infrastructure.

FAQ

Q: Is the DS200TCEAG1B compatible with all GE Mark V systems?
Yes, it is fully compatible with standard Mark V racks used in gas and steam turbine installations.

Q: What is the difference between DS200TCEAG1B and DS200TCEAG1BTF?
The “TF” revision typically reflects a later manufacturing update while maintaining function and compatibility.

Q: Can this module replace an older or damaged overspeed board?
Yes, it is commonly used as a direct replacement when older versions fail or degrade.

Q: Does the board require calibration after installation?
No calibration is normally required; however, system checks are recommended after replacement.

Q: What type of field inputs can it process?
It accepts standard 24 VDC contact inputs from sensors, switches, and protective interlocks.