GE IS200EAUDH1A High speed contactor driver Daughter Boa

The GE part number IS200EAUDH1A is a High-Speed Contactor Driver Daughter Board. It is a component of GE’s Mark VI Speedtronic turbine control system. Its primary function is to provide the high-speed, controlled switching signals required to operate contactors or other electromechanical devices from the main control board. ⚡

Function and Key Features

A daughterboard is a smaller circuit board that plugs into a larger “motherboard” to add a specific function. The EAUD board performs the critical task of driving high-power components.

• High-Speed Contactor Driver: The board is designed to output a powerful and fast-acting signal to control a contactor. Contactors are high-power electrical switches used to control large loads, such as motors and heaters. The “high-speed” capability is crucial for time-sensitive control applications, such as in a protective shutdown sequence.
• Electrical Isolation: The board provides electrical isolation between the sensitive electronics of the main control board and the high-power, noisy electrical circuits of the contactor. This isolation protects the control system from voltage spikes and power surges.
• System Integration: The board plugs directly into a main I/O board in the Mark VI system. It receives commands from the main controller and then outputs the necessary signals to the field wiring.
• Robust Design: Like all GE industrial control components, it is built to withstand the harsh conditions of a power plant.

Applications

The IS200EAUDH1A is used in power generation facilities that operate GE’s Mark VI turbine control systems. It is an essential component for:

• Protective and Safety Systems: It is used to drive contactors for protective functions, such as tripping a generator breaker or de-energizing a critical circuit during an emergency shutdown.
• Auxiliary Equipment Control: It can be used to control auxiliary motors, pumps, or heaters that are part of the turbine system.