الوصف
The GE IS200HFPAG1AAA is a High-Frequency AC/Fan Power Supply Board (HFPA) within the General Electric Mark VI Speedtronic Turbine Control System.1
Its primary function is to act as a versatile power converter, taking a range of high-voltage inputs (AC or DC) and transforming them into the regulated low-voltage AC and DC outputs required to power critical cooling and control components in the turbine’s drive cabinet.
⚙️ Core Function and Specifications
The HFPAG1A series is an essential component for system health, ensuring that the control electronics and, most importantly, the cooling fans operate reliably. The difference between the suffixes (like A vs. AAA) usually denotes the functional revision and/or artwork revision of the board, which are minor technical updates that may not alter the core function.2
| Feature | Detail |
| Functional Abbreviation | HFPA (High-Frequency Power Supply) |
| System | GE Mark VI Speedtronic Turbine Control System |
| Input | Receives both AC and DC input voltages (may be isolated) |
| Key Outputs | 48/52 VDC, 48/52 VAC (Squarewave), and 17.7/19.1 VAC (Squarewave) |
| Output Use | Provides power for cooling fans and isolated power circuitry |
| Connectivity | Typically includes four stab-on connectors for input and eight plug connectors for output |
| Protection | Features fuses and a Metal Oxide Varistor (MOV) for circuit protection |
| Diagnostics | Two LED indicators (DS1 and DS2) to monitor the status of the output voltages |
In short, the IS200HFPAG1AAA ensures that the sensitive control electronics in the Mark VI cabinet are supplied with the correct, isolated power and that the system remains cool, which is critical for the continuous and reliable operation of the gas or steam turbine.



+86 15340683922
+86 15340683922