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The GE part number IC3606SIFA9 is a Filter Card. This electronic circuit board is a component of GE’s legacy Speedtronic Mark I and Mark II series turbine control systems. Its primary function is to filter out unwanted electrical noise and smooth out signals to ensure the accuracy and reliability of the control system.
Function and Key Features
A filter card is crucial in an industrial environment where electrical interference from motors, generators, and other equipment is common. This interference, or “noise,” can corrupt the low-level analog signals used in the turbine control system, leading to incorrect readings or control actions.
- Signal Filtering: The card uses various electronic components like capacitors, resistors, and inductors to create a filter circuit. This circuit removes high-frequency noise and interference from a signal while allowing the desired signal (e.g., a signal representing speed or temperature) to pass through.
- Signal Smoothing: The filter also helps to “smooth” out a signal, which is particularly important for signals that may fluctuate, such as from a speed sensor. A smooth signal allows the control system to make more precise and stable adjustments.
- Robust Design: Like all GE industrial control boards, it’s built to withstand the harsh conditions of a power plant, including vibrations and temperature fluctuations.
- Analog Control: The card is part of an analog control system, meaning it uses analog components to perform its function rather than a digital processor.
Applications
The IC3606SIFA9 is a legacy component, so it’s primarily used in power generation facilities that still operate GE’s older Mark I and Mark II turbine control systems. It is an essential component for:
- Signal Integrity: It ensures that critical control signals remain clean and accurate, which is vital for safe and reliable turbine operation.
- Control Loops: It is used in various control loops, such as those for speed, temperature, and pressure, to improve the quality of the sensor signals.
