Product Overview

The GE DS200FGPAG1AHD is a Gate Pulse Amplifier(GPA)board designed for use in GE’s EX2000 and EX2100 static excitation systems,which regulate the field current of large synchronous generators in power plants,industrial facilities,and marine applications.This critical interface module receives low-power firing angle commands from the excitation controller and amplifies them into high-current,isolated gate drive signals capable of triggering SCRs(Silicon Controlled Rectifiers)or thyristors in the power bridge—ensuring precise control of generator terminal voltage,reactive power(VARs),and system stability.

The”HD”suffix denotes a high-density or high-drive variant,often indicating enhanced output current capability,improved noise immunity,or compatibility with specific power stack configurations(e.g.,larger SCR banks or redundant bridges).As part of the DS200 series—GE’s modular I/O and power interface platform for turbine and generator controls—the DS200FGPAG1AHD is engineered for reliability in electrically harsh environments,featuring opto-isolated outputs,overvoltage protection,and conformal-coated circuitry to resist moisture,dust,and chemical exposure.

Mounted within the EX2000/EX2100 power cabinet or auxiliary I/O rack,the DS200FGPAG1AHD typically supports 6-pulse or 12-pulse converter topologies,providing synchronized gate pulses across all phases with microsecond-level timing accuracy.It interfaces directly with the EXC200/EXC2100 main control boards via backplane or ribbon cables and participates in real-time diagnostic reporting—flagging issues such as missing pulses,gate circuit opens,or overtemperature conditions to the central controller.

By ensuring clean,robust,and precisely timed thyristor triggering,the DS200FGPAG1AHD plays a vital role in maintaining generator voltage regulation during grid disturbances,supporting black-start capability,and preventing field overexcitation or underexcitation faults that could lead to loss of synchronism or equipment damage.

Technical Specifications

Parameter Name Parameter Value

Model DS200FGPAG1AHD

Manufacturer General Electric(GE Power/GE Vernova)

Product Type Gate Pulse Amplifier Board

Compatible Systems EX2000,EX2100 Excitation Systems;Mark V/VI turbine platforms

Function Amplifies controller firing signals to drive SCR/thyristor gates

Output Channels Typically 6 or 12(depending on system configuration)

Gate Drive Current≥500 mA peak per channel(HD variant=higher drive strength)

Isolation Voltage≥2500 Vrms(input-to-output and channel-to-channel)

Input Signal Low-voltage pulse from EXC controller(e.g.,5–15 V logic)

Operating Voltage+24 VDC or±15 VDC(via backplane or local supply)

Operating Temperature-20°C to+70°C(industrial grade)

Mounting Slide-in card for GE DS200/EX2000 chassis(Eurocard format)

Protection Features Overcurrent,reverse polarity,ESD,and transient suppression

Certifications CE,UL 508,CSA,IEEE 421.3/421.5(excitation standards)

Dimensions Standard 6U Eurocard(~233 mm×160 mm)

🔔Note:The exact number of outputs and drive specs may vary based on the excitation system topology(e.g.,single vs.dual bridge).Always verify compatibility with your EX2000/EX2100 configuration.

Main Features and Advantages

The GE DS200FGPAG1AHD delivers high-fidelity pulse transmission essential for stable excitation control.Its high-drive(HD)design ensures reliable SCR turn-on even with long gate cables,aged thyristors,or high-impedance gate circuits—common challenges in aging power infrastructure.

Key advantages include:

Optical isolation prevents ground loops and protects sensitive controller electronics from power stack transients.

Precise pulse timing(<1µs jitter)maintains waveform symmetry,reducing harmonic distortion and field heating.

Integrated diagnostics report gate circuit health to the EX2100 HMI,enabling predictive maintenance.

Hot-swap capable in redundant EX2100 systems,allowing replacement without shutting down the generator.

Field-proven reliability in thousands of installations worldwide—from hydro plants to combined-cycle facilities.

Unlike generic pulse amplifiers,the DS200FGPAG1AHD is factory-calibrated and tested as part of the complete GE excitation solution,ensuring seamless interoperability and compliance with IEEE and IEC generator performance standards.

Application Field

The GE DS200FGPAG1AHD is deployed in:

Thermal power plants(coal,gas,nuclear):Regulating field current for steam turbine generators

Hydroelectric stations:Providing fast-response excitation for load rejection and islanding

Industrial cogeneration:Supporting voltage control in captive power systems

Oil&gas platforms:Ensuring black-start readiness for offshore generators

Grid support applications:Enabling dynamic VAR compensation and PSS(Power System Stabilizer)functions

It is commonly used when upgrading legacy excitation systems or replacing failed GPA cards in existing EX2000/EX2100 cabinets—ensuring continued compliance with grid code requirements for voltage ride-through and reactive support.

Related Products

EX2100 Main Control Board(e.g.,DS215EXCCH1ABA):Central excitation processor

DS200FEPAG1A:Field excitation power amplifier(complementary module)

DS200TCQAG1A:Thermocouple input board for temperature monitoring

SCR/Thyristor Stacks:Power semiconductors driven by the GPA

Mark VI/VIe Turbine Controllers:Coordinate with EX2100 for full plant control

ToolboxST™/EX2100 HMI:Software for configuration and diagnostics

Installation and Maintenance

Pre-installation:

Power down the excitation system and follow LOTO(Lockout-Tagout)procedures.

Verify correct model number(DS200FGPAG1AHD)matches your system documentation.

Inspect edge connectors for bent pins or corrosion;clean with contact cleaner if needed.

Ensure gate cables are properly routed away from high-voltage AC lines to avoid coupling noise.

Maintenance:

Monitor EX2100 alarm logs for“Gate Pulse Fault”or“Field Bridge Imbalance”warnings.

Perform annual visual inspection for burnt components,bulging capacitors,or coating degradation.

Use an oscilloscope to validate pulse amplitude and timing during commissioning or troubleshooting.

Store spares in anti-static bags with humidity control to prevent PCB delamination.

Product Guarantee

Every GE DS200FGPAG1AHD we provide is 100%new or professionally refurbished to original GE specifications,fully tested on EX2000/EX2100 test benches for pulse fidelity,isolation integrity,and thermal performance.We offer a 24-month warranty against manufacturing defects and lifetime technical support from certified GE power generation engineers.Because excitation system failure can trigger cascading grid events,we guarantee only authentic,rigorously validated components—ensuring your generator remains stable,compliant,and online.

选择深圳长欣，选择放心，售后无忧 大量现货，当天顺丰发货！！！