GE IS200JPDDG1A DIRECT CURRENT PDM GENERAL ELECTRIC MARK VI

GE IS200JPDDG1A DIRECT CURRENT PDM GENERAL ELECTRIC MARK VI

GE IS200JPDDG1A is a Direct Current Power Distribution Board (JPDD) designed for use in the GE Mark VI and Mark VIe Speedtronic Turbine Control Systems.

Its main function is to distribute a single DC power output into multiple, protected load circuits, primarily for auxiliary control functions.

⚙️ Core Function: DC Power Distribution and Protection

The JPDD board is a branch circuit board that handles the distribution and protection of DC power to secondary control loads, such as DC relays and solenoids.

  • Power Distribution and Isolation: It efficiently splits a single DC input into six identical output circuits. The board is designed to provide isolation and direction, ensuring power is appropriately channeled.

  • Input Voltage Flexibility: It can accept a single input voltage of 24 VDC, 48 VDC, or 125 VDC nominal (only one voltage level can be used at a time).

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The GE IS200JPDDG1A is a Direct Current Power Distribution Board (JPDD) designed for use in the GE Mark VI and Mark VIe Speedtronic Turbine Control Systems.

Its main function is to distribute a single DC power output into multiple, protected load circuits, primarily for auxiliary control functions.

⚙️ Core Function: DC Power Distribution and Protection

The JPDD board is a branch circuit board that handles the distribution and protection of DC power to secondary control loads, such as DC relays and solenoids.

  • Power Distribution and Isolation: It efficiently splits a single DC input into six identical output circuits. The board is designed to provide isolation and direction, ensuring power is appropriately channeled.

  • Input Voltage Flexibility: It can accept a single input voltage of 24 VDC, 48 VDC, or 125 VDC nominal (only one voltage level can be used at a time).

  • Branch Circuit Protection: Each of the six output circuits is independently protected, featuring:

    • Two Fuses: One fuse on each side of the DC path, allowing the board to be used with floating power sources. The fuses are typically 15 A (5 x 20 mm) or less. Fuses above 15 A should not be used.

    • A Switch: An output load switch is included for maintenance purposes, allowing individual circuits to be isolated without shutting down the main power.

    • An Indicator Lamp (LED): A lamp illuminates to visually indicate the presence of output voltage.

🔎 Installation and Usage Details

  • Mounting: The board is held in a plastic holder and is typically mounted on a vertical DIN rail within the control cabinet.

  • Daisy-Chaining: The input connectors (Mate-N-Lok type) are designed to allow multiple JPDD boards to receive power from a single Main Power Distribution Module branch circuit in a daisy-chain fashion.

  • Limitations: The JPDD is not intended for supplying power to the main I/O packs (like T/R/S I/O packs); it is focused on control and solenoid power.

  • Revision: The G1A suffix indicates the board belongs to Hardware Group 1, Artwork Revision A, the initial design version.

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