Product Short Description
Product Introduction
The GE DS200NATOG2A is a Voltage Feedback Scaling Board (NATO) under the DS200 series, designed by General Electric for LS2100 Static Starter and Mark V Speedtronic control systems. It serves as a precision voltage attenuation hub, specifically engineered to attenuate AC phase voltages and DC bus voltages from SCR (Silicon Controlled Rectifier) bridges, converting high – voltage inputs (1200–6900 V) to scaled low – voltage signals that control systems can accurately process. The board operates in conjunction with a VME backplane and a gate distribution/status board, and integrates five identical precision resistor strings (three for AC phases, one each for positive/negative DC bus). Each string is configurable via three input stab connectors and two jumpers to match input voltage levels, and outputs are routed to a 20 – pin ribbon header for system integration. Metal Oxide Varistors (MOVs) protect outputs from overvoltage during ribbon circuit interruptions, and the burden resistor is located on the gate distribution/status board. It is backed by the GEI – 100225 reference manual, built with industrial – grade components and standard PCB coating, and delivers stable, repeatable voltage scaling for critical turbine and static starter control operations. It has a G2 group variant designation, with each string configured to four resistors via two jumpers replacing bottom resistors, and maintains consistent performance in harsh industrial settings.
Description
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE (General Electric) LS2100/Mark V Series |
| Model | DS200NATOG2A |
| Product Type | Voltage Feedback Scaling Board (NATO), G2 Group Variant |
| Application | LS2100 Static Starter Control Systems, Mark V Speedtronic Gas Turbine Control Systems |
| Interface Compatibility | VME backplane, gate distribution/status board, 20 – pin ribbon header |
| Input Voltage Ranges | Configurable for 1200, 2200, 3300, 4200, 6900 V AC/DC via jumpers/stabs |
| Resistor String Configuration | 5 identical series – connected precision resistor strings (3 AC phases, +DC, – DC); 4 resistors per string (G2 variant) |
| Configuration Components | 3 input stab connectors per string, 2 wire jumpers per string |
| Output Interface | 20 – pin ribbon header (5 string outputs) |
| Protection Devices | Metal Oxide Varistors (MOVs) per string for overvoltage protection |
| Burden Resistor Location | Gate distribution and status board |
| Reference Manual | GEI – 100225 |
| PCB Coating | Standard Coating |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% – 95% RH (non – condensing) |
| Dimensions | Approx. 3.48 × 3.29 × 1.85 inches (88.4 mm × 83.7 mm × 47.0 mm) |
| Weight | Approx. 0.82 kg (1.8 lbs) |
| Mounting | PCB for standard LS2100/Mark V chassis installation |
| Country of Origin | USA |
| Power Supply | Powered via connected control system (no independent primary power input) |
| Compliance | Industrial EMC and safety standards (IEC 61010 – 1, IEC 61326 – 1) |
Functional Features
- Precision Voltage Attenuation: Attenuates SCR bridge AC/DC voltages to levels compatible with control system input ranges, ensuring accurate voltage feedback derivation.
- Multi – Range Configurability: 3 stab connectors and 2 jumpers per string enable adaptation to 5 standard voltage ranges, matching diverse SCR bridge designs.
- Dedicated Channel Isolation: 5 independent resistor strings (3 AC, +DC, – DC) prevent cross – talk and ensure independent, accurate feedback per channel.
- Overvoltage Protection: MOVs on each string block excessive output voltage if the ribbon circuit is interrupted while input voltage is present.
- Seamless System Integration: Interfaces with VME backplane and gate distribution/status board for plug – and – play integration into LS2100/Mark V architectures.
- Stable Output Routing: 20 – pin ribbon header consolidates 5 string outputs for reliable connection to control system signal processing circuits.
- G2 Variant Optimization: 4 resistors per string (via jumper – replaced bottom resistors) deliver consistent attenuation ratios across all channels.
- Industrial – Grade Durability: Industrial – grade components and standard PCB coating ensure reliable operation in extreme temperatures and high – vibration industrial environments.
- Standardized Documentation: GEI – 100225 manual provides detailed setup, configuration, and maintenance guidelines for consistent deployment.
- Field – Serviceable Design: Stab connectors and jumpers allow on – site reconfiguration without replacing the entire board.
- Low Signal Distortion: Precision resistors maintain signal integrity, supporting accurate control system voltage monitoring and regulation.
Application Scenarios
- Gas Turbine SCR Bridge Control: Attenuates SCR bridge AC/DC voltages in Mark V Speedtronic systems, enabling accurate voltage feedback for turbine exciter control and load management.
- LS2100 Static Starter Systems: Works with gate distribution/status boards to scale voltage feedback for large – motor static starters in steel mills, mining conveyors, and industrial compressors.
- Heavy – Duty SCR Drive Systems: Provides voltage scaling for SCR bridges in DC2000/FC2000 drives, ensuring precise monitoring of AC phase and DC bus voltages during variable – load operations.
- Power Generation Auxiliaries: Scales voltage feedback for SCR – based exciters and auxiliary converters in grid – connected power plants, maintaining stable power output.
- Petrochemical Refinery Turbines: Operates in harsh refinery environments to monitor SCR bridge voltages in turbine and compressor control systems, ensuring process continuity.
- Marine Propulsion Systems: Integrates with LS2100 marine static starters to scale voltage feedback for shipboard turbine propulsion systems, supporting reliable at – sea operations.
- Mark V System Retrofits: Replaces legacy NATO boards in existing Mark V installations, maintaining compatibility and voltage scaling accuracy.
- Industrial Static Starter Upgrades: Serves as a drop – in replacement for older voltage feedback boards in LS2100 systems, enhancing control precision and system reliability.
- SCR Bridge Test & Commissioning: Enables safe, accurate voltage feedback during SCR bridge testing, simplifying commissioning and troubleshooting.
Reviews
There are no reviews yet.