IS200EDFFH1AAA - Exciter DC Fanned Feedback Board

SPECIFICATIONS

Part No.: IS200EDFFH1AAA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature: -30 to +65oC
Product Type: Exciter DC Fanned Feedback Board
Availability: In Stock
Series: EX2100e

Functional Description

IS200EDFFH1AAA is a Exciter DC Fanned Feedback Board developed by GE. It is a part of EX2100e excitation system. The EX2100e Direct Current (DC) Feedback Board, designated IS200EDFFH1A, serves as a component in the measurement and regulation of field voltages and currents within the excitation system. The board is specifically designed to measure field voltages and field currents at the SCR bridge within the excitation system.

Features

• Interface with Excitation Control Auxiliary Interface Board: During operation, the field voltages and currents measured by the board are interfaced with the connected Excitation Control Auxiliary Interface board. This interface facilitates communication between the feedback signals generated by the EDFF board and the excitation control system, allowing for precise regulation and control of the generator field.
• Fiber-Optic Ink for Voltage Isolation: The board features a fiber-optic ink, providing voltage isolation between the EAUX and EDFF boards. This isolation ensures electrical separation between different components of the excitation system, preventing potential issues such as ground loops and enhancing system reliability. Additionally, the fiber-optic ink offers high-noise immunity, minimizing the impact of electromagnetic interference on signal integrity.
• Conversion of Field Voltages and Currents into Feedback Signals: During operation, the board scales and converts the measured field voltages and currents at the regulator/exciter output into frequency feedback signals. These feedback signals are utilized by the excitation control system to adjust excitation levels and maintain desired generator operating conditions. The board achieves this through V-F converter circuits, which accurately translate analog voltage inputs into frequency outputs.

Digital Controller (IGBT-based Systems)

• Panel-Mounted Control and PCMs: The control system and Power Conversion Modules (PCMs) are designed to be panel-mounted, providing convenient access for monitoring, configuration, and maintenance tasks. This arrangement ensures ease of integration and operation within the excitation control system.
• Enclosure Options and Packaging Flexibility: The EX2100e Excitation Control products feature a Regulator control system housed in an 800 mm (32 in) enclosure, with supporting hardware tailored to specific application needs. Alternatively, customized packaging options are available to accommodate diverse installation requirements. This flexibility allows for seamless integration into existing setups and facilitates retrofit applications.
• Power Conversion Configuration:
  
  • Input Section: Consists of a 3-phase diode bridge with input filters to rectify and filter the incoming AC power.
  • DC Link: Provides a stable DC voltage for the excitation system, ensuring smooth operation and regulation.
• Converter Output Section: Delivers the converted output power to the exciter field, controlling generator field parameters as per system requirements.
• Input Power Requirements: The EX2100e Excitation Control system accepts a primary AC input range of 90 to 280 V rms, nominal for the 35 A system, and up to 480 V rms for the 120 A system. This input can be supplied from various sources, including a permanent magnet generator (PMG), auxiliary bus, or generator terminals. While a PMG input does not require a Power Potential Transformer (PPT), it is necessary for an auxiliary bus or generator terminal feed to have this component for proper operation.
• Frequency and Phase Compatibility: The AC input operates at a frequency of up to 480 Hz (maximum), which can be supplied as either single-phase or three-phase. This compatibility with different frequency and phase configurations ensures versatility and adaptability to diverse power generation environments.

The WOC team is always available to help you with your EX2100e requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200EDFFH1AAA?
It is a Exciter DC Fanned Feedback Board developed by GE under the EX2100e series.

What configurations are available for the EX2100e Regulator system?
The EX2100e Regulator system offers several configurations to provide control flexibility for Thyristor and Regulator systems.

What are the options for small Regulator systems within the platform?
For small Regulator systems, there are two pulse-width modulated (PWM) power converter modules available. These modules utilize Insulated Gate Bipolar Transistors (IGBT) and can provide up to 35 A or 120 A nominal output.

What is the advantage of using Insulated Gate Bipolar Transistors (IGBT) in the power converter modules?
IGBTs offer high efficiency and precise control over power conversion processes, making them well-suited for applications requiring accurate regulation of voltage and current levels.

Can the Regulator system accommodate different current requirements?
Yes, the system is designed to meet varying current demands, with options available for both low-current (up to 35 A) and high-current (up to 120 A) applications.