GE DS3820CI2AE21C Current Isolator Module
- Product Code: DS3820CI2AE21C
- Availability: In Stock
GE DS3820CI2AE21C
Current Isolator Module
Product Overview
The DS3820CI2AE21C is a specialized current isolator module designed by General Electric for the Mark IV Speedtronic series. This module provides critical isolation between control circuits and line voltage systems, ensuring safe and reliable operation in industrial turbine control applications.
Technical Specifications
| Manufacturer | General Electric (GE) |
| Series | Mark IV Speedtronic |
| Part Number | DS3820CI2AE21C |
| Product Type | Current Isolator Module |
| Isolation Voltage | 1500V AC |
| Operating Temperature Range | -40°C to 70°C (-40°F to 158°F) |
| Input Voltage | 12-24 VDC |
| Response Time | 50 microseconds |
| Vibration Resistance | IEEE 344 Class 1, 15g continuous impact |
| Safety Certification | SIL 2, API 670 compliant |
Hardware Components
- Isolation Amplifier: S1270 isolation amplifier for signal isolation and conditioning
- Terminal Strip: Three-position terminal strip for input/output connections
- Connectors: Ribbon connector, two male vertical pin connectors, stab-on ground connector
- Circuit Components: Integrated circuits, potentiometers, transistors, resistors, capacitors, and diodes
- Enclosure: Metal wall-mountable enclosure with hinged front panel
Key Features
Current Isolation
Provides isolation between control circuits and line voltage systems, preventing ground loops and electrical interference
Signal Conversion
Capable of switching incoming current from DC to AC as required by the application
Safety Certification
Compliant with API 670 standards and certified for SIL 2 safety integrity level
Rugged Design
Built to withstand harsh industrial environments with excellent vibration resistance
Functional Description
The DS3820CI2AE21C current isolator module is designed to provide electrical isolation between the control side and the line voltage side of industrial systems. This isolation is crucial for preventing ground loops, reducing electrical noise, and protecting sensitive control equipment from potentially damaging voltage spikes or surges.
The module features dual isolation via optocouplers and relays, ensuring that control signals remain unaffected by interference from the power side. All channels include automatic shutdown capabilities during short circuits, which is particularly important in turbine control applications to prevent surge conditions caused by misoperation.
The module also includes status self-diagnosis functionality, providing real-time feedback on faults such as contact adhesion and coil open circuits. These diagnostics can trigger pre-maintenance alarms through the Mark IV HMI interface, helping to reduce unplanned downtime.
Applications
- Gas turbine control systems
- Steam turbine control systems
- Industrial power generation facilities
- Offshore platforms and high-vibration environments
- Critical infrastructure protection systems
Installation and Maintenance
The DS3820CI2AE21C module features a wall-mountable metal enclosure with several flanges and screw holes for secure mounting. The front panel is hinged on the left edge, providing easy access to the internal components for maintenance and troubleshooting.
Important safety warnings are marked on the front panel, including high-voltage warnings. It is essential to follow all handling and safety procedures provided by the manufacturer before installing or servicing this module.
Regular maintenance should include checking all connections for tightness, inspecting the module for signs of damage or overheating, and verifying proper operation through the system's diagnostic interface.