IS200ERRRH1A - Exciter Regulator Redundant Relay

SPECIFICATIONS

Part No.: IS200ERRRH1A
Manufacturer: General Electric
Product Type: Exciter Regulator Redundant Relay
Series: EX2100
Country of Manufacture: United States (USA)

Functional Description

IS200ERRRH1A is an exciter regulator redundant relay developed by GE. It is a part of EX2100 excitation system. The relay drives and monitors the K41 relay. The K41 relay is responsible for controlling the excitation system's output voltage and ensuring its stability and accuracy. By driving and monitoring the K41 relay, the component contributes to the precise regulation of the exciter output voltage. K5T Module Transfer Relay: Another crucial relay that the drives and monitors is the K5T module transfer relay. This relay facilitates the seamless transfer of control between redundant modules within the excitation system. By driving and monitoring the K5T relay, it ensures a smooth transition between redundant modules, enhancing the system's reliability and availability. The module transfer SCR is responsible for controlling the excitation system's power output and regulating the excitation current. By driving and monitoring the module transfer SCR, the product helps maintain the stability and accuracy of the excitation system's power output. The board is involved in monitoring the bridge voltage feedback. The bridge voltage feedback provides crucial information about the voltage level across the silicon-controlled rectifier (SCR) bridge, which is a vital component of the excitation system. By monitoring the bridge voltage feedback, the component helps ensure the stability and optimal performance of the SCR bridge.

Features

• Male and Female Connectors: Incorporates both male and female connectors, providing flexibility for connecting to other devices or modules within the system. The male connectors allow for easy attachment to corresponding female connectors, ensuring secure and reliable connections.
• Connector Placement: The female connectors are conveniently located along one long edge of the board. This arrangement simplifies cable management and organization, making it easier to route and connect cables to the appropriate terminals.
• Lack of LEDs: Unlike some other boards, the ERRRH1A board does not feature LEDs (light-emitting diodes). LEDs are typically used to provide visual indicators for status, signal presence, or fault conditions. While this board lacks built-in LEDs, it may still incorporate other means of status indication or monitoring through alternative methods.
• Transformers and Relay Components: Contains four transformers and four relay components. Transformers are used to step up or step down voltage levels, while relays are electromechanical switches that enable or disable the flow of current in a circuit. These components play a crucial role in managing and controlling electrical signals within the system.
• Redundancy Mode: Typically, the board is used in redundancy mode. Redundancy ensures system reliability by incorporating backup components that can take over in case of a failure in the primary components. This redundancy mode enhances system resilience and minimizes the risk of unexpected downtime or disruptions.
• Lack of Front Faceplate: It does not feature a front faceplate. A front faceplate is a panel that covers the front surface of a board and may include labels, indicators, or buttons. While the absence of a front faceplate may simplify the board's design and reduce complexity, it does not diminish its functionality within the system.
• Components and Circuitry: Although lacking certain components like test points, jumpers, and LEDs, the ERRRH1A board incorporates a variety of electronic components. This includes capacitors, resistors, oscillating chips, and over forty integrated circuits. These components work together to support the processing, amplification, filtering, and control of electrical signals within the board.
• Drill Holes and Conductive Material: The board features drill holes, which are openings made in the board for mounting or attaching it to the system's structure. Some of these drill holes may have conductive material surrounding them, which can aid in grounding or electrical connections within the system.

Replacement Procedure

1. Start by removing the four screws that secure the keypad assembly to the faceplate. These screws are typically located at the corners of the assembly. Use an appropriate screwdriver or tool to carefully unscrew and remove them.
2. Once the screws are removed, gently detach the keypad assembly from the unit. Take caution to avoid damaging any components or cables during this process. Pay particular attention to the communications cable, which is typically connected to the upper left-hand corner of the unit. Carefully disconnect the communications cable from the unit, ensuring a smooth and clean separation.
3. Additionally, remove the grounding strap attached to the keypad assembly. This strap helps to ensure proper grounding and electrical safety. Set aside the keypad assembly in a safe place.
4. Unplug all of the harnesses connected. These harnesses are typically connected to various terminals or connectors on the board. Take care to remove them gently, ensuring that no pins or connectors are damaged in the process.
5. Once all the harnesses are disconnected, carefully take out the ERRR board from its mounting bracket. The board may be secured using three nylon standoffs and one metallic standoff with a nut. Remove these fasteners using the appropriate tools and carefully lift the ERRR board out of the mounting bracket.
6. Replace the board with the new or replacement board. Ensure that it aligns properly with the mounting bracket and that the connectors are oriented correctly for easy reconnection of the harnesses.
7. To reassemble the unit, reverse the steps mentioned earlier. Start by placing the keypad assembly back onto the unit, making sure it aligns correctly with the faceplate. Reconnect the communications cable and grounding strap to their respective locations.
8. Plug in all the harnesses to the appropriate connectors, ensuring a secure and proper connection for each. Take care to match the correct terminals and connectors to their corresponding harnesses.
9. Finally, secure the board in place by reattaching the nylon standoffs and metallic standoff with the nut. Make sure they are tightened appropriately to hold the board securely in the mounting bracket.

Characteristics

• Connector Types: The I/O Terminal Board features both male and female connectors. These connectors provide the necessary interfaces for connecting various external devices and components to the board. The male connectors are typically designed to plug into corresponding female connectors, ensuring secure and reliable connections for data and signal transmission.
• Number of Integrated Circuits: It incorporates over 40 integrated circuits (ICs). Integrated circuits are miniaturized electronic circuits that contain multiple interconnected electronic components, such as transistors, resistors, and capacitors, on a single chip. These ICs play a vital role in processing and controlling the signals and data exchanged between the board and external devices.
• Operating Mode: The board operates in a redundant mode. Redundancy is a crucial feature that enhances the reliability and availability of a system. In a redundant configuration, multiple components or subsystems are employed to provide backup or alternate paths, ensuring uninterrupted operation in the event of a failure or malfunction of one component. By operating in a redundant mode, the board can maintain system functionality and prevent potential downtime or disruptions.

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Frequently Asked Questions

What is IS200ERRRH1A?
It is an exciter regulator redundant relay developed by GE.

What are the connectors on the board?
The board has both male and female connectors, with the female connectors located along one long edge of the board. However, there are no LEDs on this board.

What is Exciter Regulator Redundant Relay board?
It is part of the Innovation Series and contains four transformers and four relay components. It is typically used in redundancy mode.

Does the Exciter Regulator Redundant Relay board have any test points, jumpers, or LEDs?
The model appears to lack any integrated test points, jumpers, or LEDs. However, it does include capacitors, resistors, oscillating chips, and over forty integrated circuits. This board contains drill holes, some of which have been surrounded by conductive material.