Overview
The IS200ERDDH1ABB is an IGBT Exciter Regulator/Dynamic Discharge (ERDD) card manufactured by General Electric for the EX2100 excitation control system. It manages IGBT gate drive control, monitors bridge feedback signals, and controls dynamic discharge functions to regulate field excitation. Furthermore, its P1 and P2 backplane connectors and single-slot, double-height (6U) form factor support its integration into the designated exciter control assembly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | IS200ERDDH1ABB |
| Brand | General Electric (GE) |
| Series | EX2100 |
| Product Type | IGBT Exciter Regulator/Dynamic Discharge Card |
| Functional Acronym | ERDD |
| Gate Drive Control | IGBT gate drive management |
| Dynamic Discharge | DC link overvoltage regulation |
| Bridge Feedback Monitoring | DC link voltage, output shunt current, output field voltage, bridge temperature, and IGBT gate drive status |
| Gate Drive Status Monitoring | Power supply and desaturation conditions |
| Relay Control | De-excitation relay (K41) in simple applications; charging relay (K3) in redundant applications |
| Form Factor | Single-slot, double-height (6U) |
| Backplane Connectors | P1 and P2 |
| Interface Connectors | 7 |
| Operating Temperature | -30 to 65 deg C |
| Manufacturer | General Electric |
| Country of Origin | United States of America (USA) |
| Availability | In Stock |
Exciter Regulation and Dynamic Discharge
The ERDD card manages the IGBT gate drive mechanism used in field excitation control. It regulates the switching control of the excitation bridge, while its dynamic discharge function helps manage excessive DC link voltage. Therefore, the card supports controlled field excitation and provides a discharge path for managing voltage conditions within the exciter circuit.
Bridge Feedback Monitoring
The card monitors several electrical and thermal parameters to provide feedback on bridge operating conditions. These signals help the control system evaluate excitation performance and identify abnormal operating states.
The monitored parameters include:
- DC link voltage
- Output shunt current
- Output field voltage
- Bridge temperature
- IGBT gate drive power supply status
- IGBT desaturation conditions
Furthermore, monitoring both electrical feedback and gate drive status allows the excitation control system to assess bridge conditions during operation.
Relay Control and Operating Configurations
The ERDD card also manages relay control according to the exciter application configuration:
- Simple applications: Controls the de-excitation relay (K41).
- Redundant applications: Manages the charging relay (K3).
These relay functions support the corresponding excitation circuit operations. The applicable relay arrangement depends on the system configuration.
Backplane and Connector Interface
The IS200ERDDH1ABB uses a single-slot, double-height (6U) board format with P1 and P2 backplane connectors. In addition, seven connectors on the board provide interfaces to associated boards within the exciter assembly.
The connector pin signals and their specific assignments are documented under the Application Data section. Therefore, connector wiring and signal identification should follow the documentation for the applicable EX2100 configuration.
Frequently Asked Questions
Q: What is the primary function of the IS200ERDDH1ABB?
A: It manages IGBT gate drive control and dynamic discharge functions in the GE EX2100 excitation system. It also monitors bridge feedback signals and controls designated relays.
Q: What feedback signals does the IS200ERDDH1ABB monitor?
A: It monitors DC link voltage, output shunt current, output field voltage, bridge temperature, and IGBT gate drive status, including power supply and desaturation conditions.
Q: What connectors does this card use?
A: The card has P1 and P2 backplane connectors and seven additional board-level connectors. Refer to the applicable EX2100 Application Data documentation for individual connector pin assignments.
