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The GE IS200HFPAG1ACB is a High-Frequency AC/Fan Power Supply Board (HFPA) designed for the General Electric Mark VI Speedtronic Turbine Control System.1
Its essential function is to convert and regulate a wide range of input voltages (AC or DC) into stable low-voltage outputs, primarily to power cooling fans and other isolated high-frequency circuits within the turbine control cabinet.2 This ensures the thermal and electrical reliability of the sensitive control electronics.
⚡ Key Specifications and Features
The IS200HFPAG1ACB is part of the HFPAG1A family, with the suffix (ACB) indicating a specific revision level that does not change the core function of the board.
| Feature | Detail |
| System | GE Mark VI Speedtronic Turbine Control System |
| Function | Provides regulated power for cooling fans and isolated power circuits. |
| Input Voltage | Versatile input; can accept high-voltage AC or DC (e.g., 230 VAC or 230–1100 VDC). |
| Key Outputs | 48 VDC, 48 VAC (Squarewave), and 17.7 VAC (Squarewave at ~25 kHz). |
| Output Capacity | 90 VA (Volt-Amperes) Maximum Total Load. |
| Connectors | Four stab-on input connectors and eight plug output connectors. |
| Protection | Features four fuses and a Metal Oxide Varistor (MOV) for surge protection. |
| Diagnostics | Two Status LEDs (DS1 and DS2) to indicate the operational status of the voltage outputs (e.g., 17.7 VAC and 48 VDC/VAC). |
In short, the IS200HFPAG1ACB is a critical utility board that provides the necessary infrastructure for thermal management and power delivery, which are vital for the continuous and safe operation of the entire Mark VI turbine control system.
