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- DS200FGPAG1A
- Mark V Turbine Control Gate Pulse Amplifier Board
- USA
- 311 mm × 112.5 mm × 140 mm
- 1kg
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Product Specification: DS200FGPAG1A
| Parameter | Description |
|---|---|
| Model Number | DS200FGPAG1A |
| Brand | General Electric (GE) |
| Series / Product Line | Mark V (Speedtronic / Gate Pulse Amplifier / LS2100 family) |
| Module Type / Role | Gate Pulse Amplifier Board (FGPA) — handles gate drive, SCR status monitoring, switching power supply |
| Key Functions | • Gate driver circuits (two circuits) • SCR cell status monitoring • Built‑in switching power conversion • Fiber‑optic connectors for status communication |
| Number of Gate Driver Circuits | 2 |
| Fiber‑Optic Connectors | 15 total (1 transmitter, 14 receivers) |
| Test Points | 30 total: 9 for Gate A, 9 for Gate B, 12 for Cell Status Monitors |
| Twelve‑Pulse Converter Supply Voltage | Approx. 2080 VAC or 3300 VAC |
| Compatibility | Not backwards compatible |
| Operating Temperature | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Series / OEM Manual Ref | LS2100, part of the “Gate Pulse Amplifier” manual GEI‑100223 |
| Dimensions | ~ 311 mm × 112.5 mm × 140 mm |
| Weight | ~ 1 kg |
Product Description
The DS200FGPAG1A is a high‑performance gate pulse amplifier board used in turbine control systems, particularly under the Mark V / LS2100 / Speedtronic control scheme. Its main job is to drive the gating of power devices (like SCRs – silicon controlled rectifiers), monitor their status (via cell voltage feedback), and provide the necessary power conversion (switching from AC to DC) required by the gating circuits and status sensors.
It includes fiber‑optic interfaces: one transmitter and fourteen receivers, to collect status data reliably without being affected by electromagnetic interference common in power electronics / turbine environments. There are many test‑points for diagnostic access. It’s constructed for rugged industrial duty, with good thermal range, robust components, and designed to integrate into existing Mark V control racks.
Applications
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Turbine control systems (gas turbines, steam turbines) for power plants
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High‑voltage power electronic applications with SCR bridges and gate drive requirements
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Load Commutated Inverter (LCI) systems where SCR gating and cell monitoring are needed
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Industrial environments where optical isolation and fast gate drive are crucial
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Systems requiring heavy‑duty pulsed gate power, with high reliability and frequent diagnostics access
Advantages
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High Reliability in Harsh Environments — Designed for wide temperature ranges, electrical stress, fiber‑optic connectors mitigate EMI (electromagnetic interference).
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Detailed Diagnostics — Thirty test points allow engineers to observe gate signals and cell voltage status directly; critical for troubleshooting.
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Fast Gate Drive and SCR Monitoring — With two gate driver circuits and optical feedback, system can effectively detect and respond to status changes.
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Integrated Power Supply Switching — The module includes its own power supply switching to convert AC supply to required DC for gating and status circuits.
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Modular Repair / Replacement — As a module in the Mark V or LS2100 family, it is replaceable; its design allows for maintenance without complete system overhaul.
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Optical Communication for Safety & Stability — With fiber‑optic links, data on SCR cell status is transmitted without being affected by electrical noise, improving stability and reducing risk of false signals.
Brand & Series
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Brand: General Electric (GE)
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Series / Product Line: Mark V / Speedtronic / LS2100 series for turbine / power plant electronics
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Module Type: Gate Pulse Amplifier Board (FGPA)
Related / Similar Models (Same or Adjacent Series)
Here are five models in the same or closely related series; comparison by key parameters:
| Model | Series / Function | Key Role / Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| DS200FGPAG1A | Mark V / LS2100 Gate Pulse Amplifier | Gate drive + SCR status monitoring + power switching | ~ 311 × 112.5 × 140 mm | ~ 1 kg |
| DS200FHVAG1A | Mark V High‑Voltage Gate Interface Board | Interface board for high voltage SCR gating & status feedback | (size typical board module) | (~ same or a bit heavier) |
| DS200FCSAG1A | Mark V Current Feedback Sensing Board | Feedback of current / sensor interface | standard board size Mark V type | ~ 0.5‑1 kg |
| DS200GDPAG1ALF | DS200 Gate Distribution & Power Amplifier | High frequency power supply / gate distribution | moderately large size | (~0.68 kg / 680g) |
| DS200SLCCG1AHH | Mark V LAN Communication Module | Handles LAN communications for Speedtronic / DS200 series | typical module board size | ~ 0.5 kg |
Other Popular Models from Same Brand (Mark V / DS200 etc.)
Here are five widely used GE modules, for comparison, with key specs:
| Model | Series | Function / Use Case | Dimensions / Size | Weight (kg) |
|---|---|---|---|---|
| DS200SLCCG1AHH | Mark V / DS200 LAN Communication | Network interface for DS200 system | approximate module board dimensions | ~ 0.5 kg |
| DS200DCFBG1BNC | Mark VI / Speedtronic / DS200 Series | Power Supply Module for downstream boards | board size typical | ~ 1.0‑1.5 kg range |
| DS200DMCBG1AED | Mark V / DS200 Control Module | Drive / Monitoring Control | moderate module size | ~ 0.8‑1.2 kg approx |
| DS200TCQAG1BFD | Mark V / DS200 Series | Gate / Trigger Control Interface | board module dimensions | ~ 0.6 kg approx |
| DS200FHVAG1A | Mark V High Voltage SCR Gate Interface | High‑voltage gate driving and SCR interaction | board module size | ~ 1.0 kg approx |
FAQs (10 Q&A)
Below are ten common questions and answers about DS200FGPAG1A.
Q1: What does “Gate Pulse Amplifier” mean, and what does this board do?
A1: Gate Pulse Amplifier means a module that amplifies control (“gate”) signals to drive power switching devices (SCRs), monitors their status (via cell voltages), and provides power (via switching power supply) required to run those functions. This board takes weaker logic signals and turns them into strong gate drive outputs, and monitors feedback.
Q2: Why are fiber‑optic connectors used in this board?
A2: Fiber‑optics are used for status communication (SCR cell status, etc.) because optical communication is immune to electromagnetic interference that is very common around power electronics such as SCR bridges. They help preserve signal integrity.
Q3: What are the test points for, and how many are there?
A3: There are 30 test points on the board: 9 for Gate A, 9 for Gate B, and 12 for cell status monitoring. These allow technicians to probe signals or voltages directly for diagnostic or troubleshooting purposes without disassembling the module.
Q4: What voltage levels does this board accept and convert?
A4: It accepts very high AC voltages from the converter supply (often ~ 2080 VAC or ~ 3300 VAC for the twelve‑pulse converter supply), and converts needed parts to DC control voltages for gate circuits and status monitors.
Q5: What is the operating ambient temperature range for DS200FGPAG1A?
A5: Typical operating range is –20 °C to +70 °C; storage range is wider (–40 °C to +85 °C).
Q6: Is this module backwards compatible with older GE Mark IV or earlier boards?
A6: No; it is specified as not backwards compatible. That means older control racks or older interface layouts may not support it directly. When replacing, one must verify rack compatibility, connector pin‑outs, firmware or control logic compatibility.
Q7: What are the key safety / protection features?
A7: The module features optical isolation, robust switching power supply, status monitoring for cell voltages, proper test points for diagnostics. Also likely includes protection for over‑voltage, over‑current or gate driver failure.
Q8: How large/heavy is the module?
A8: Dimensions are about 311 mm × 112.5 mm × 140 mm; weight is approx. 1 kg.
Q9: Where is this module used in the control chain of a turbine or power electronic system?
A9: It sits between the control logic (that issues gate commands) and the power switching devices (SCR bridges). It drives the gates, monitors them, and feeds back cell / SCR status to the logic controller (LCI or other).
Q10: What are the common causes of failure for this board, and how to maintain it?
A10: Common failure causes include thermal stress (if cooling is insufficient), electrical stress (over‑voltage or surges), optical connector damage, dust/moisture contamination, connector pin corrosion. Maintenance should include periodic inspections, cleaning, checking test point readings, verifying gate drive waveforms, ensuring proper power supply, replacing worn components, and keeping spare modules on hand.
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