GE IC3600QOXC20 Overspeed Sensor Card
⁦GE IC3600QOXC20 Overspeed Sensor Card⁩ - الصورة ⁦2⁩

GE IC3600QOXC20 Overspeed Sensor Card

Turbines are designed to operate within a specific rotational speed range. Exceeding this limit can cause catastrophic failure, leading to severe damage and safety risks. The IC3600QOXC20 acts as a dedicated safety device. It receives signals from magnetic or eddy current speed pickups mounted near a toothed wheel on the turbine shaft. It then processes these signals to accurately calculate the rotational speed.

If the calculated speed exceeds a predefined trip setting, the card sends a signal to the turbine’s trip circuit, which immediately closes the fuel and/or steam valves. This action is designed to be very fast and reliable, operating independently of the main control system to ensure a safe shutdown even if the primary controls fail.

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الوصف

The GE IC3600QOXC20 is an Overspeed Sensor Card for the GE Speedtronic Mark I and Mark II turbine control systems. Its main function is to monitor the rotational speed of a turbine shaft and provide an independent, high-speed trip signal to shut down the turbine in the event of an overspeed condition.

 

Function and Purpose ⚙️

 

Turbines are designed to operate within a specific rotational speed range. Exceeding this limit can cause catastrophic failure, leading to severe damage and safety risks. The IC3600QOXC20 acts as a dedicated safety device. It receives signals from magnetic or eddy current speed pickups mounted near a toothed wheel on the turbine shaft. It then processes these signals to accurately calculate the rotational speed.

If the calculated speed exceeds a predefined trip setting, the card sends a signal to the turbine’s trip circuit, which immediately closes the fuel and/or steam valves. This action is designed to be very fast and reliable, operating independently of the main control system to ensure a safe shutdown even if the primary controls fail.

 

Related Components

 

  • Speed Pickups: The card is wired to one or more speed sensors that generate a pulse signal with each revolution of the turbine shaft.
  • Trip Circuit: When the card detects an overspeed condition, it sends a signal to a series of relays that activate the trip circuit, cutting off the fuel or steam supply to the turbine.
  • Trip Relay Cards: The card communicates with other modules, such as trip relay cards, which control the physical actuators that close the fuel valves.

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