GE IS200EXAMG1A Exciter Attenuator Module – Mark VI Turbine Control Series
When an exciter attenuator module fails in a gas or steam turbine control system, the consequences are immediate and severe. Voltage regulation collapses, generator excitation becomes unstable, and in worst-case scenarios, an unplanned turbine trip can halt an entire power plant or industrial facility — costing tens of thousands of dollars per hour in lost production. The GE IS200EXAMG1A is the precision component that stands between normal operation and that catastrophic outcome.
The IS200EXAMG1A occupies a critical signal-conditioning role within GE’s Mark VI Turbine Control System — one of the most widely deployed turbine management platforms in the global power generation industry. Designed to attenuate and condition exciter feedback signals with high accuracy, this module ensures that the Mark VI controller receives clean, properly scaled voltage and current data from the generator excitation circuit. Its deployment spans gas turbines, steam turbines, and combined-cycle power plants across six continents, making it one of the most field-proven exciter interface modules in industrial automation history.
Technical Specifications
- Part Number: IS200EXAMG1A
- Manufacturer: GE (General Electric) Energy / GE Vernova
- Series: Mark VI Turbine Control System
- Module Type: Exciter Attenuator Module
- Form Factor: PCB-based plug-in module
- Weight: 460 g
- Application: Generator excitation signal conditioning and attenuation
- Compatibility: GE Mark VI / Mark VIe turbine control platforms
- Operating Environment: Industrial control panel / turbine control enclosure
- Condition Available: Surplus New / Tested Refurbished / Exchange
Note: Konmask.com does not fabricate or modify specifications. All parameters above are based on publicly available GE documentation and physical inspection. Contact us for a detailed datasheet.
Key Features & Benefits
- Precision Signal Attenuation: Accurately scales high-voltage exciter feedback signals to levels compatible with Mark VI I/O processing boards, preventing signal distortion that could cause false trips or control instability.
- High Noise Immunity: Designed for the electrically noisy environment of generator excitation circuits, with robust filtering to reject common-mode interference.
- Direct Drop-In Replacement: Maintains full pin-compatible form factor with the original GE specification, enabling fast swap-out during planned or emergency maintenance windows.
- Long Service Life: Industrial-grade components rated for continuous duty in high-temperature turbine control enclosures.
- Reduces Downtime Risk: Stocking a spare IS200EXAMG1A is standard practice for power plant reliability engineers — a single module can prevent a multi-day forced outage.
- Supports Predictive Maintenance: Enables accurate exciter health monitoring when integrated with Mark VI diagnostic routines.
Industry & Equipment Applications
- Power Generation: Gas turbine generators, steam turbine generators, combined-cycle (CCGT) plants
- Oil & Gas: Offshore platform turbine-driven compressors and generators
- Petrochemical: Refinery and LNG facility turbine-generator sets
- Industrial Manufacturing: Large captive power plants with GE turbine installations
- Utilities & Grid Operators: Baseload and peaking power stations running GE Mark VI control systems
- Marine & Defense: Naval vessel turbine control applications using GE Mark VI architecture
System Integration & Compatible Parts
The IS200EXAMG1A is designed to operate within the GE Mark VI turbine control ecosystem. Commonly integrated or replaced alongside this module:
- IS200EACFG1A – Exciter AC Feedback Module
- IS200EDCFG1A – Exciter DC Feedback Module
- IS200VSVOH1B – Servo Driver Module
- IS200TBAIH1C – Turbine Analog Input Terminal Board
- IS215VCMIH2C – VME Communication Module
- DS200TCQAG1BHF – Turbine Control I/O Board
When sourcing the IS200EXAMG1A, it is advisable to verify the firmware revision of your Mark VI controller to confirm compatibility. Our technical team can assist with cross-referencing.
Our Quality Assurance Process
Every IS200EXAMG1A unit shipped from Konmask.com undergoes a structured inspection and verification process:
- Visual Inspection: PCB, connectors, and housing examined for physical damage, corrosion, or component anomalies.
- Functional Verification: Where applicable, modules are bench-tested against known-good reference units to confirm signal integrity and attenuation performance.
- Authenticity Check: Part markings, date codes, and board revisions are verified against GE documentation to screen out counterfeit or misrepresented parts.
- ESD-Safe Packaging: All modules are packed in anti-static bags with foam cushioning and clearly labeled for safe transit.
- Documentation: Test reports and inspection records available upon request for critical applications.
How to Order
- Step 1: Submit an inquiry via the form on this page or email support@konmask.com with your required quantity and delivery timeline.
- Step 2: Our technical team will confirm stock availability, condition grade, and provide a formal quotation within 24 hours.
- Step 3: Upon PO confirmation, we arrange ESD-safe packaging and dispatch with full tracking.
- Step 4: Post-delivery technical support is available for installation and integration questions.
We support T/T bank transfer, L/C, and other standard B2B payment terms. OEM and volume pricing available for qualified buyers.
Why Choose Konmask.com?
- Specialized Inventory: We focus exclusively on industrial automation and turbine control components — not a general electronics distributor.
- Technical Expertise: Our team includes engineers with hands-on Mark VI system experience, not just sales staff.
- Global Shipping: We ship to power plants, EPC contractors, and MRO buyers in over 50 countries with full export documentation.
- Responsive Quoting: Urgent inquiries for critical spares are prioritized — we understand that turbine downtime is not negotiable.
- Transparent Sourcing: We clearly disclose the condition and provenance of every unit — no surprises after delivery.
Frequently Asked Questions
Q: Is the IS200EXAMG1A compatible with both Mark VI and Mark VIe systems?
A: The IS200EXAMG1A was originally designed for the Mark VI platform. Compatibility with Mark VIe depends on the specific I/O configuration and firmware version. Please contact our technical team with your system details for a definitive compatibility assessment.
Q: What condition grades are available?
A: We typically offer Surplus New (unused, original packaging), Tested Refurbished (cleaned, inspected, and functionally verified), and Exchange (core return basis). Availability varies by stock. Inquire for current inventory status.
Q: How quickly can you ship?
A: In-stock units are typically dispatched within 1–3 business days of PO confirmation. Express air freight options are available for urgent requirements.
Q: Can you provide a warranty?
A: Yes. We offer a standard 12-month warranty against defects in materials and workmanship for tested units. Terms are specified in the quotation.
Q: Do you accept returns?
A: Returns are accepted within 30 days for units that are unused and in original condition, or where a verified defect is confirmed. Please contact us before returning any item.
Q: Can I get a datasheet or wiring diagram?
A: We can share available GE documentation upon request. For proprietary installation drawings, we recommend contacting GE Vernova’s service division directly.
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