IS200TPROH1B Product datasheet   

IS200TPROH1B Functional Description 

General Electric IS200TPROH1B Protective Termination Card  is a critical Protective Termination Board within the Speedtronic Mark VI control system, designed specifically for gas and steam turbine protection. The board's robust construction features two large black terminal blocks on its left edge, each equipped with 24 cube-shaped silver terminals (48 total), providing secure connections for critical safety circuits. These heavy-duty terminals on the Protective Termination Card IS200TPROH1B ensure reliable signal transmission even in high-vibration turbine environments, with gold-plated contacts preventing corrosion over extended operational periods.

The upper section of the General Electric IS200TPROH1B PDF contains two vertically coupled transformers, predominantly red with yellow accents, which provide essential isolation for protection signals. Adjacent to each transformer sits a circular red MOV (Metal Oxide Varistor) that safeguards against voltage spikes and transient electrical disturbances. This sophisticated protection circuitry makes the General Electric IS200TPROH1B particularly reliable for trip circuit monitoring and emergency shutdown functions in both simple-cycle and combined-cycle power plants.

On the right edge, the Termination Board GE IS200TPROH1B features a comprehensive array of black and silver connector ports for system integration. Three larger ports (labeled JZ1, JY1, and JX1 from top to bottom) handle primary control signals, while three smaller adjacent ports (JZ5, JY5, JX5) serve auxiliary functions. Each small connector is paired with a tiny yellow capacitor for signal filtering, demonstrating the board's attention to signal integrity. The left section's row of silver 'L'-marked components (likely inductors) completes the board's comprehensive EMI protection scheme.

As a vital component of GE's Speedtronic turbine control system, the Mark VIe General Electric IS200TPROH1B exemplifies industrial-grade design with its military-spec components and fail-safe architecture. Its combination of high-density termination, electrical protection devices, and precise signal conditioning makes it indispensable for turbine protection systems requiring absolute reliability. The board's logical layout and clear labeling facilitate both initial installation and ongoing maintenance, reducing outage times during critical turbine servicing periods.