General Electric Mark VI IS200EXMDG1APR1 interface card with Augat connectors

General Electric Mark VI IS200EXMDG1APR1 interface card with Augat connectors

د.إ8,888.00

GE IS200EXMDG1APR1 is an Exciter Motor Driver (MD) Interface Card designed for the GE EX2100 Excitation Control System, which is part of the larger Mark VI or Mark VIe turbine control platform.1

This board functions as a specialized interface, safety buffer, and communication hub within the excitation control cabinet.

⚙️ Primary Functions of the EXMD Card

The main purpose of the EXMD board is to link the sensitive low-voltage control electronics to the high-power section of the exciter bridge while also providing critical protection features.

  1. Interface to Power Section: It acts as the physical and electrical interface between the main Exciter Control Processor (like a UCSB) and the power conversion bridges (SCRs/Thyristors) that regulate the generator’s field current.
  2. Protection Execution: The card is key in communicating with the LSGI (Lightning Surge and Gating Interface) to execute high-speed protection commands. This includes providing the signal needed to rapidly open protective relays (like the $52\text{SS}$ power input breaker) in the event of an instantaneous overcurrent, thereby protecting the entire power bridge.
  3. Signal Conditioning: It conditions and routes various analog and digital signals related to the excitation bridge—such as current feedback, voltage status, and pre-trigger contact inputs—to the main controller for closed-loop regulation and diagnostics.
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The GE IS200EXMDG1APR1 is an Exciter Motor Driver (MD) Interface Card designed for the GE EX2100 Excitation Control System, which is part of the larger Mark VI or Mark VIe turbine control platform.1

This board functions as a specialized interface, safety buffer, and communication hub within the excitation control cabinet.

⚙️ Primary Functions of the EXMD Card

The main purpose of the EXMD board is to link the sensitive low-voltage control electronics to the high-power section of the exciter bridge while also providing critical protection features.

  1. Interface to Power Section: It acts as the physical and electrical interface between the main Exciter Control Processor (like a UCSB) and the power conversion bridges (SCRs/Thyristors) that regulate the generator’s field current.
  2. Protection Execution: The card is key in communicating with the LSGI (Lightning Surge and Gating Interface) to execute high-speed protection commands. This includes providing the signal needed to rapidly open protective relays (like the $52\text{SS}$ power input breaker) in the event of an instantaneous overcurrent, thereby protecting the entire power bridge.
  3. Signal Conditioning: It conditions and routes various analog and digital signals related to the excitation bridge—such as current feedback, voltage status, and pre-trigger contact inputs—to the main controller for closed-loop regulation and diagnostics.

📌 Connector Detail: Augat

The inclusion of Augat connectors refers to a specific type of connector technology or brand of terminal blocks used on the board.

  • In this context, it generally means the board uses a high-density, multi-pin connector system (often referred to as vertical pin connectors in GE documentation) to establish reliable and secure connections for control and signal wiring.2
  • These connectors are designed to handle the numerous communication and signal lines that must be exchanged between the EXMD card and the rest of the control backplane/system.

The “R1” in the part number (G1APR1) indicates a specific manufacturing or hardware revision of the board compared to the earlier G1APR version. Minor revisions like this often involve component changes, minor layout adjustments, or improved software compatibility, but the core functionality of the board remains the same.

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