GE IS200JGNDG1AAA GROUND TERMINATION GE BOARD MARK VI

GE IS200JGNDG1AAA GROUND TERMINATION GE BOARD MARK VI

د.إ8,888.00

The primary role of the IS200JGNDG1AAA is to manage the grounding of cable shields to ensure a clean signal environment:

  • EMI Mitigation: The board provides a dedicated, low-impedance path for connecting the shield drain wires of external field cables. This is crucial for shunting Electromagnetic Interference (EMI) and radio-frequency noise away from the sensitive signal conductors.

  • Signal Integrity: By effectively grounding the shields, the board helps prevent noise from corrupting the low-level signals (e.g., analog inputs from sensors, thermocouples, or RTDs) that are vital for the accurate operation of the turbine or generator.

  • Ground Separation: The board allows shield grounds to be terminated separately from the signal grounds on the primary I/O board. This separation is often required by best practice to prevent shield currents from flowing into the signal ground path and introducing noise.

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الوصف

The GE IS200JGNDG1AAA is a Shield Ground Board (JGND) designed for use in General Electric’s high-reliability control systems, specifically the Mark VI Speedtronic Turbine Control System and the Mark VIe Distributed Control System.

Its function is fundamental to the system’s electrical integrity, providing a secure point for terminating cable shields to mitigate electrical noise.

⚙️ Core Function: Shield Grounding

The primary role of the IS200JGNDG1AAA is to manage the grounding of cable shields to ensure a clean signal environment:

  • EMI Mitigation: The board provides a dedicated, low-impedance path for connecting the shield drain wires of external field cables. This is crucial for shunting Electromagnetic Interference (EMI) and radio-frequency noise away from the sensitive signal conductors.

  • Signal Integrity: By effectively grounding the shields, the board helps prevent noise from corrupting the low-level signals (e.g., analog inputs from sensors, thermocouples, or RTDs) that are vital for the accurate operation of the turbine or generator.

  • Ground Separation: The board allows shield grounds to be terminated separately from the signal grounds on the primary I/O board. This separation is often required by best practice to prevent shield currents from flowing into the signal ground path and introducing noise.

🔌 Technical and Installation Details

  • Product Type: Shield Ground Terminal Board.

  • Terminals: The board is equipped with multiple screw terminals (typically 24 positions) in a block configuration (often Euro-type terminal blocks) for connecting the bare shield drain wires.

  • Mounting: The board is small and mounts directly to a sheet metal bracket within the control cabinet, adjacent to the main terminal board.

  • Grounding Mechanism: The board establishes its ground connection through the mounting hardware to the sheet metal bracket. Best practice dictates a direct conductive path (i.e., no nylon washers) between the board and the grounded sheet metal for the most effective EMI drainage.

  • Revision: The G1AAA suffix indicates the initial hardware group and artwork revision, with multiple subsequent assembly/manufacturing revisions. The core shield grounding function remains constant.

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