GE DS200FGPAG1A-KD – Field Ground Protection Board for EX2000 / Mark V Drive & Excitation Systems

The GE DS200FGPAG1A-KD is a Field Ground Protection board used in GE DS200-series platforms such as EX2000 excitation systems and Mark V-based drive cabinets. In simple terms, it continuously monitors the DC field insulation to ground and flags developing ground faults before they become a rotor or bridge failure. From my experience, plants often install or replace this board when nuisance alarms are creeping up or after a rotor repair—because early detection typically saves far more than the price of the card.

One thing I appreciate is how it integrates through the DS200 backplane—no extra software overhead for commissioning in most cases. You might notice the “-KD” build code; that usually denotes a factory option or revision package, while the functional role remains equivalent to the DS200FGPAG1A family.

Our Order Placement Process and Guarantees

• Warranty: 365 days coverage from delivery
• Lead time: 1 week when in stock, and no more than 1 month at the latest
• Payment terms: 50% advance payment; full balance prior to delivery
• Express options: FedEx, UPS, DHL—packed with ESD and shock protection
• Functional test reports available on request (typically insulation monitoring and alarm trip checks)

Key Features

• Field ground fault monitoring – Continuously supervises field-to-ground leakage to catch insulation breakdown early.
• Alarm and trip thresholds – Supports staged response (warning then trip), which helps maintenance plan interventions.
• Backplane integration – Uses the DS200 backplane for power, status, and signals—no separate comms setup.
• High-impedance sensing – Designed to measure leakage with minimal impact on the field circuit.
• Status indicators and test points – Aids troubleshooting during outages; technicians can verify thresholds on the bench.
• Form/fit compatibility – Drop-in replacement within the DS200/EX2000 rack architecture in most cases.

Technical Specifications

Application Fields

This board is typically deployed anywhere a GE EX2000/Mark V architecture supervises a DC field:

• Synchronous generator excitation systems in power plants
• Large DC drives and rolling mills in metals processing
• Paper machines and process lines running legacy Mark V drives
• Mining hoists and marine propulsion with separately excited machines

“We had intermittent field ground alarms on a turbine exciter. Swapping in a verified DS200FGPAG1A stopped the nuisance trips and gave us clean trending on insulation.” — Maintenance Supervisor, combined-cycle plant

Advantages & Value

• Reliability – Early ground fault detection helps protect rotors, thyristor bridges, and brushgear—reducing forced outages.
• Compatibility – Drop-in fit for DS200 racks; minimal parameter changes required in most cases.
• Lifecycle savings – Avoids escalating insulation damage that often leads to costly rotor rewind or long downtime.
• Technical support – We can provide handling and installation guidance, plus functional test reports on request.

Installation & Maintenance

• Cabinet standards – Install in a clean, dry, ventilated control cabinet. Maintain spacing from high-voltage cabling to reduce noise pickup.
• ESD and handling – Use a grounded wrist strap and antistatic mat. Power down and lock-out/tag-out before removal or insertion.
• Wiring – Verify all backplane and harness connectors are fully seated; route sensor wiring away from high-current conductors.
• Commissioning checks – Confirm alarm/trip thresholds and simulate a ground fault using approved test methods before return to service.
• Routine maintenance – Inspect terminal tightness, clean dust with dry air, and review ground fault trends during scheduled outages. Firmware updates are not typically required for this board type.

Quality & Certifications

• Manufacturer quality systems typically align with ISO standards for industrial controls
• CE/UL conformity applies at the system/cabinet level; this board is a component part
• RoHS status may vary by production year; legacy DS200 hardware is often non-RoHS
• Warranty: 365 days replacement/repair coverage under normal use

Related & Supporting Components

For maintenance planning, teams often pair the DS200FGPAG1A-KD with common DS200 rack modules such as DS200SDCCG1A (drive control), DS200SLCCG1A (LAN communications), or excitation I/O cards. Availability can vary, but having a tested spare set typically shortens outage windows.