GE DS3800HSCG1E1F Isolator Board – Signal Isolation & Ground Fault Protection | Mark VI Turbine Control Platform
Engineering Background
The DS3800HSCG1E1F is a dedicated isolator board developed by General Electric as part of the Mark VI turbine control ecosystem — one of the most widely deployed distributed control architectures in gas turbine, steam turbine, and combined-cycle power generation facilities worldwide. Designed to operate within GE’s Speedtronic™ control cabinets, this board provides critical galvanic isolation between field instrumentation and the control backplane, protecting sensitive logic circuits from ground loops, transient surges, and common-mode noise inherent in high-voltage industrial environments.
Product Positioning
The DS3800HSCG1E1F is a direct replacement and upgrade-compatible isolator board for aging Mark IV/V/VI installations. It is the preferred sourcing target for plant engineers executing scheduled maintenance, emergency replacements, or control system life-extension programs. Konmask.com supplies this board from verified surplus inventory with full traceability documentation available upon request.
Complete Technical Specifications
- Part Number: DS3800HSCG1E1F
- Manufacturer: General Electric (GE Energy / GE Power)
- Series / Platform: Mark VI Speedtronic™ Turbine Control
- Board Function: Signal Isolator / Ground Fault Protection Board
- Form Factor: Plug-in PCB module, DIN-rail / card-cage mount
- Isolation Type: Galvanic (optical + transformer-coupled)
- Operating Voltage: 24 VDC nominal (backplane-supplied)
- Operating Temperature: 0 °C to +60 °C (32 °F to 140 °F)
- Storage Temperature: −40 °C to +85 °C
- Humidity: 5–95% RH, non-condensing
- Weight: 300 g (approx.)
- Compliance: CE, UL (per GE platform certification)
- Revision / Suffix: 1E1F (latest production revision)
- Condition: Surplus / Refurbished — tested and verified
Proven Application Environments
- Gas turbine control panels (GE Frame 5, 6, 7, 9 series)
- Steam turbine governor and protection systems
- Combined-cycle power plant DCS integration racks
- Compressor station control cabinets
- Offshore platform turbine control enclosures
- Petrochemical plant rotating equipment control systems
- Mark IV → Mark VI migration and retrofit projects
Engineering Advantages
- Full Galvanic Isolation: Eliminates ground loops between field devices and control logic, preventing spurious trips and signal corruption.
- Ground Fault Detection: Onboard circuitry continuously monitors for ground faults on isolated channels, enabling predictive maintenance before failure.
- Drop-in Compatibility: Mechanically and electrically compatible with existing Mark VI card-cage slots — no firmware changes required.
- High MTBF Design: GE’s industrial-grade component selection ensures long service life in continuous 24/7 operation.
- Noise Immunity: Optical isolation stages reject common-mode transients up to ±1500 V, critical in high-voltage switchyard environments.
System Architecture & Signal Flow
Within the Mark VI architecture, the DS3800HSCG1E1F sits between the field terminal board (TB) and the I/O processor module. Analog and discrete signals from field transmitters, thermocouples, and proximity probes enter the isolator board, where each channel is galvanically separated before being passed to the control backplane. The board’s ground fault monitoring circuit samples isolation resistance continuously; a fault condition below the threshold triggers a diagnostic alarm to the toolbox HMI without interrupting the control loop — enabling maintenance action during operation rather than forced shutdown.
Sourcing & Quality Verification
- Source: Verified surplus from decommissioned GE Mark VI control systems
- Inspection: Visual inspection, PCB cleaning, and functional bench test prior to shipment
- Traceability: Original GE part label retained; serial number documentation available on request
- Warranty: 90-day replacement warranty against DOA or functional defects
- Packaging: Anti-static bag + foam-lined carton; ESD-safe handling throughout
- Lead Time: In-stock items ship within 1–3 business days
Procurement Process
- Confirm part number DS3800HSCG1E1F matches your existing board label and GE BOM.
- Contact Konmask.com for real-time stock confirmation and quantity pricing.
- Submit PO or place order directly via the product page.
- Receive shipping confirmation with tracking within 24 hours of order processing.
- Inspect board upon receipt; report any discrepancy within 5 business days.
Technical FAQ
Q: Is DS3800HSCG1E1F compatible with Mark V systems?
A: The board is designed for Mark VI but shares physical form factor with some Mark V racks. Electrical compatibility must be verified against your specific Mark V I/O configuration before installation.
Q: Can this board be repaired if a channel fails?
A: GE does not publish component-level schematics for this board. Board-level replacement is the standard practice. Konmask.com recommends keeping one spare per critical turbine unit.
Q: Do you provide a test report?
A: A functional test summary is available upon request for orders of 2+ units. Contact support@konmask.com to request documentation.
Q: What is the lead time for bulk orders (5+ units)?
A: Bulk availability varies by stock level. Contact us for a dedicated quote with confirmed lead time and volume pricing.
Q: Is export documentation available?
A: Yes. Commercial invoice, packing list, and HS code documentation (HS 8537.10) are provided for all international shipments.
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