DS3820WGCA1C - PCB Card

SPECIFICATIONS

Part No.: DS3820WGCA1C
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Product Type: PCB Card
Availability: In Stock
Series: Mark IV

Functional Description

DS3820WGCA1C is a PCB Card developed by GE. It is a part of the Mark IV control system. The Mark IV system uses triple modular redundancy (TMR), with three independent control processors and a fourth monitor processor. This redundancy enhances reliability by allowing the system to continue operating even if one component fails, ensuring uninterrupted turbine performance. The system is equipped with comprehensive online diagnostics to detect and annunciate hardware and software faults. These diagnostics help identify issues such as memory corruption, signal mismatches, communication errors, and power supply deviations.

Off-line diagnostics

The Mark IV turbine control system includes comprehensive off-line diagnostics to verify the functionality of input/output operations. These diagnostics are a crucial tool for ensuring system reliability and maintaining performance standards. Since most of these diagnostics require the turbine to be non-operational, they are typically conducted during installation, preventive maintenance, or after significant repairs. An analog test module is necessary for performing tests 6 through 10. Input/Output Areas Tested in Off-Line Diagnostics:

• Auxiliary Display: Verifies the functionality and accuracy of auxiliary display units.
• Operator's Panel Membrane Switches: Ensures that all membrane switches on the operator's control panel are responsive and functional.
• Digital I/O Cards: Tests digital input/output cards to confirm signal integrity and proper communication.
• Contact Inputs: Checks the operation of contact inputs to detect and troubleshoot wiring or logic issues.
• Relay Outputs: Verifies the proper functioning of relay outputs, ensuring signals are transmitted effectively.
• Pulse Rate Inputs: Assesses the pulse rate inputs for accuracy in reading frequency signals from speed sensors or similar devices.
• Vibration Inputs: Evaluates vibration inputs, critical for detecting turbine vibrations and ensuring operational safety.
• Pressure Inputs: Tests pressure inputs to confirm their responsiveness and precision in monitoring system pressures.
• Thermocouple Inputs: Checks thermocouple inputs to validate temperature readings essential for turbine operations.
• Analog Output Card: Ensures analog output cards function correctly, facilitating accurate signal outputs for downstream systems.

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

Frequently Asked Questions

What is DS3820WGCA1C?
It is a PCB Card developed by GE under the Mark IV series.

What safety features does the Mark IV have?
The Mark IV includes built-in safety systems to protect turbines from conditions like over-speed, over-temperature, or abnormal operations. It automatically initiates protective actions when unsafe conditions are detected.

Can the Mark IV system be upgraded?
Yes, while the Mark IV is durable and reliable, upgrades to newer control systems like the Mark V, VI, or VIe make it possible to leverage modern features and technologies.