DS3800DMEB - Motor Excitation Control Board

DS3800DMEB - Motor Excitation Control Board DS3800DMEB - Motor Excitation Control Board

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Part Number: DS3800DMEB
Manufacturer: General Electric
Series: Mark IV
Product Type: Motor Excitation Control Board
Number of channels: 12
Operating temperature: -30 to 55 degrees Celsius
Size: 8.25 cm high x 4.18 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States


DS3800DMEB is a Motor Excitation Control Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. A Motor Excitation Control Board (MECB) is a type of control board designed to manage and regulate the excitation system of an electric motor. The excitation system is a crucial component in the operation of synchronous and asynchronous (induction) motors. It provides the necessary magnetic field required for the motor to function. Here are some key points regarding Motor Excitation Control Boards:

Excitation System:

  • In an electric motor, the excitation system is responsible for creating the magnetic field that interacts with the rotor to produce motion.
  • Synchronous motors require a DC (direct current) excitation system to create a constant magnetic field, while asynchronous motors (induction motors) often use an AC (alternating current) excitation system.


  • The MECB is designed to regulate the excitation current supplied to the motor's field winding.
  • It ensures that the motor operates at the desired speed and maintains stability during changes in load and other operating conditions.

Control Algorithms:

  • MECBs often employ control algorithms to adjust the excitation current based on the motor's speed and load requirements.
  • These algorithms may use feedback from sensors or other sources to make real-time adjustments and optimize motor performance.

Protection Features:

  • MECBs may include protection features to prevent damage to the motor and control system.
    This can include overcurrent protection, overvoltage protection, and other safeguards.

Communication Interfaces:

  • Some advanced MECBs may have communication interfaces to integrate with larger control systems, allowing for remote monitoring and control.

Types of Motors:

  • MECBs can be designed for various types of motors, including both synchronous and asynchronous motors, and they may have specific features tailored to the characteristics of these motors.

Industrial Applications:

  • MECBs are commonly used in industrial settings where precise control of motor speed and performance is essential. This includes applications such as power generation, manufacturing, and other processes that rely on electric motors.

WOC maintains the largest inventory of Replacement parts for GE Speedtronic control systems. Additionally, we offer warranty-backed unused and rebuilt boards as well as board repairs for your damaged ones. For your OEM needs, our team of professionals is available around the clock. We at WOC are happy to help you with any needs you may have in terms of automation. Please contact our team by phone or email for pricing and availability on any components and repairs.


What is a Motor Excitation Control Board (MECB)?

A Motor Excitation Control Board is a control system component designed to regulate and control the excitation system of electric motors. It plays a crucial role in managing the magnetic field required for motor operation.

What is the primary function of a MECB?

The primary function of a MECB is to control the excitation current supplied to the motor's field winding. This regulation ensures that the motor operates at the desired speed and remains stable under varying load conditions.

What types of motors does a MECB control?

MECBs are designed to control both synchronous and asynchronous (induction) motors. They adapt to the specific requirements and characteristics of these motors' excitation systems.