DS3800NLCB1L - Load Commutated Inverter Analog Board

SPECIFICATIONS:

Part No: DS3800NLCB1L
Manufacturer: General Electric
Series: Mark IV
Product Type: Load Commutated Inverter Analog Board
Input Voltage: 24V DC / 48V DC
Power Consumption: ≤ 15W
Signal Input Type: Analog (±10V, 4-20mA)
Input Channels: 8
Frequency Response: DC to 5 kHz
Isolation Voltage: 1500V RMS
Output Range: 0-10 V, 4-20 mA
Input Voltage Frequency: 50Hz
Control Signals Analog Inputs/Outputs: 4-20 mA
Dimensions: 150 mm x 100 mm x 30 mm
Mounting: Standard mounting
Operating Temperature: -20°C to +70°C
Storage Temperature: -20°C to +70°C
Country of Origin: USA
Availability: In Stock

FUNCTIONAL DESCRIPTION:

DS3800NLCB1L is a Commutated Inverter Analog Board manufactured and designed by General Electric and is part of the Mark IV Series used in GE Speedtronic gas turbine control systems. The Load Commutated Inverter (LCI) Analog Board is a critical component in power conversion systems, especially in industrial and utility applications. It plays a vital role in managing the inverter circuit, which converts direct current (DC) to alternating current (AC) power. The board facilitates load commutation, ensuring smooth transitions between different loads and maintaining system stability. It is equipped with control circuits to regulate inverter operation, signal conditioning components to amplify and filter analog signals, and protection circuits to safeguard the inverter and board from faults and overcurrent conditions. Commonly used in industrial drives for controlling large motors and in power generation systems for synchronizing DC power with the grid, the LCI Analog Board is essential for efficient and reliable power management.

FUNCTIONS:

The LCI operation is simple and reliable. It uses load-commutated, phase-controlled power thyristor technology to supply power to the stator windings of a high-efficiency synchronous motor. The power circuit has a source converter, connected to the power supply and a load converter connected to the motor. When motoring, power flows from the power source to the motor. Regeneration is built in, allowing smooth control of loads in all operations. The LCI controls the motor torque to regulate motor speed. Motor torque is controlled through the DC link current. The LCI power converter blocks can be paralleled to deliver ratings over 70,000 HP. The multi-channel output gives low harmonics on the motor and allows single-channel operation.

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FREQUENTLY ASKED QUESTIONS:

What is a Load Commutated Inverter Analog Board?

The LCI Analog Board is a component in power conversion systems that manages the inverter circuit, which converts direct current (DC) to alternating current (AC) power. It handles inverter control, load commutation, signal processing, and protection functions.

What are the main functions of the LCI Analog Board?

The main functions include controlling the inverter's operation, facilitating smooth load transitions, processing analog signals for accurate monitoring and control, and detecting faults to protect the system.

In what applications is the LCI Analog Board used?

It is commonly used in industrial drives for controlling large motors, in power generation systems for synchronizing DC power with the grid, and in other scenarios where reliable power conversion and load management are needed.