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The GE DS3820ACSA is an AC Source Selector Board for the GE Speedtronic Mark IV turbine control system. Its function is to monitor and select the most reliable AC power source from a variety of options, ensuring an uninterrupted power supply to the system’s control electronics.
Function and Purpose
The primary role of the DS3820ACSA is to provide a reliable and uninterrupted power supply to the critical components of the Mark IV control system. In industrial environments, there may be multiple sources of power, such as a main grid supply, a backup generator, or other auxiliary sources. The DS3820ACSA continuously monitors the voltage and frequency of these sources. In the event of a power fluctuation or failure on one source, the card automatically switches to a more stable source.
Key functions of the board include:
- Automatic Switching: It uses electronic circuits and sensors to automatically detect and switch between power sources, ensuring a seamless transition.
- Voltage and Frequency Monitoring: The board is designed to monitor the voltage and frequency of the incoming AC power to ensure it is within acceptable limits.
- Component Protection: By providing a stable power supply, the DS3820ACSA protects sensitive control cards from damage caused by power fluctuations or spikes.
Technical Specifications (Inferred)
While detailed specifications for the DS3820ACSA are not widely available due to the age of the Mark IV system, some key attributes can be inferred from its function:
- Part Number: DS3820ACSA
- Series: GE Speedtronic Mark IV
- Product Type: AC Source Selector
- Power Supply Voltage: 24 VDC
- Operating Temperature: -40 to +65°C
- Dimensions: 15.7 cm high x 18.5 cm
- Weight: 0.8 kg
Related Components
The DS3820ACSA works in conjunction with other components of the Mark IV system, including:
- Power Supply Cards: It works with cards like the DS3800NTRF to ensure a stable power supply.
- Processor Cards: The main CPU of the system, like the DS3800HCDA, relies on the DS3820ACSA to ensure it has a stable power source.
- Terminal Boards: It connects to the incoming AC power sources via terminal boards.
