+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
Product Overview
The GE IS200EXAMG1A is an Exciter Attenuator Module (EXAM) designed for GE’s EX2100 Excitation Control System, widely used in power generation, oil & gas, and heavy industrial environments. As a critical component for ground fault detection, this module applies low-frequency AC voltage to the generator’s field winding and collaborates with the IS200EGDM (Exciter Ground Detector Module) to monitor ground leakage currents, ensuring safe and stable operation of the excitation system 3719.
Featuring dual-channel isolated inputs and resistor network sensing, the IS200EXAMG1A supports ±50V DC ground detection voltage and 0–2000Ω resistance measurement range. Its robust design includes DB9 connectors (J504, J509) for seamless integration with the EX2100’s EMIO (Exciter Master Input/Output) boards, enabling real-time signal transmission over 90-meter shielded cables 13. The module’s compact form factor (232 mm × 165 mm × 89 mm) allows for flexible mounting in auxiliary cabinets, with conformal coating to mitigate EMI/RFI interference and protect against dust and moisture 5.
With compatibility with GE’s ToolboxST software, the IS200EXAMG1A enables remote configuration of ground fault thresholds and diagnostic parameters. Its -40°C to +85°C operating temperature range and IP54 ingress protection ensure reliable performance in harsh industrial environments, such as offshore platforms or high-vibration power plants .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IS200EXAMG1A |
| Manufacturer | General Electric (GE) |
| Product Type | Exciter Attenuator Module for EX2100 Systems |
| Input Voltage | ±50V DC (ground detection) |
| Resistance Measurement | 0–2000Ω |
| Measurement Accuracy | ±2% full-scale |
| Output Signals | 2× DB9 connectors (J504, J509) for EMIO communication |
| Cable Length | ≤90 meters (shielded twisted pair) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +100°C |
| Ingress Protection | IP54 (dust and water splash resistance) |
| Dimensions | 232 mm (length) × 165 mm (width) × 89 mm (height) |
| Weight | 2.5 kg |
| Certifications | CE, RoHS (implied by GE’s standard compliance) |
| Redundancy Support | System-level redundancy via EX2100 dual controllers |
| Thermal Protection | Built-in thermal switches (alarm at 70°C, trip at 80°C) |
Key Features and Advantages
Precision Ground Fault Detection: The IS200EXAMG1A provides ±2% accuracy in ground resistance measurement, using resistor networks and isolated amplifiers to ensure stable feedback for generator excitation control. Its adaptive filtering reduces noise interference by up to 30% compared to legacy systems .
Extreme Environment Resilience: With an extended temperature range and IP54 protection, the module withstands harsh conditions typical of oil refineries, chemical plants, and offshore platforms. Conformal coating and surge protection (MOVs) further enhance reliability in high-vibration or corrosive environments .
Flexible Integration: Seamless compatibility with GE’s EX2100 system allows remote configuration of diagnostic thresholds and firmware updates via ToolboxST. This scalability enables easy integration into existing or upgraded turbine control systems, aligning with Industry 4.0 initiatives .
Fail-Safe Design: Incorporates self-diagnostic circuitry to detect sensor or amplifier failures, automatically triggering a controlled shutdown to prevent equipment damage. Certified to IEC 61508 SIL 2 standards for functional safety in critical applications .
Low Maintenance: The module’s absence of fuses or adjustable hardware minimizes routine maintenance. LED indicators provide real-time status monitoring, while GE’s predictive analytics platform (Predix) enables condition-based maintenance, reducing mean time to repair (MTTR) by up to 30% .
Application Areas
Power Generation:
- Steam/Gas Turbines: Monitors generator field winding insulation integrity to prevent ground faults, ensuring stable voltage output during load fluctuations. Integrates with GE’s Mark VIe controllers for closed-loop excitation control .
- Hydroelectric Plants: Manages ground detection in variable-speed turbines, optimizing power factor correction and grid synchronization efficiency .
Oil & Gas:
- Offshore Platforms: Detects ground faults in gas compressor drives, ensuring reliable operation in saltwater mist and high-humidity environments. Its IP54 rating makes it suitable for outdoor installations .
- Pipeline Pump Stations: Processes ground fault data from motor drives, minimizing downtime during pressure adjustments and ensuring compliance with safety standards .
Industrial Manufacturing:
- Chemical Processing: Regulates ground detection in reactor control systems, ensuring product quality and compliance with environmental regulations.
- Metal Processing: Monitors ground faults in rolling mill drives, enhancing energy efficiency and reducing unplanned downtime in high-vibration environments .
Water/Wastewater:
- Pump Stations: Controls ground fault detection in submersible pumps, ensuring continuous operation during utility outages.
- Treatment Plants: Processes ground fault signals from chemical dosing systems, enabling regulatory reporting and operational efficiency .
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Installation and Maintenance
Installation Preparation:
- ESD Precautions: Handle the IS200EXAMG1A with anti-static gloves and store it in ESD-protective packaging. Use shielded cables for signal wiring, grounding shields at both ends to minimize EMI .
- Physical Mounting: Secure the module on a DIN rail within the EX2100 auxiliary cabinet, ensuring at least 2 cm of clearance for airflow. Connect DC voltage inputs (TB1-TB3) and resistor network wiring (TB4) to the exciter SCR bridge .
- Software Setup: Use ToolboxST to configure ground fault thresholds, enable thermal alarm triggers, and verify communication with the EMIO board. Perform a functional test with dummy loads before full system commissioning .
Maintenance Recommendations:
- Routine Checks: Inspect LED indicators monthly for power, communication, or fault status. Clean dust from vents and connectors using a dry, lint-free cloth .
- Thermal Management: Monitor board temperature via built-in thermal switches and ensure cooling fans operate within specified RPM ranges. Replace fan filters every 6 months in dusty environments .
- Firmware Updates: Schedule annual firmware updates via ToolboxST to address security patches and enhance compatibility with newer EX2100 components.
- Component Replacement: Replace thermal switches or surge protection components with GE-certified spares if failures occur. For board-level repairs, contact GE-authorized service centers to ensure compliance with safety standards .
Product Warranty and Support
GE guarantees the IS200EXAMG1A against defects for 1 year from purchase. Customers receive:
- Global Technical Support: 24/7 access to GE-certified engineers for remote diagnostics and troubleshooting.
- Comprehensive Documentation: Datasheets, wiring diagrams, and safety manuals available via GE’s online portal.
- Upgrade Path: Transition to the IS200EXAMG2A for advanced cybersecurity features or integrate with GE’s Predix IoT platform for predictive analytics .
HS:8514909000
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
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