SPECIFICATIONS
Part No.: IS200TTURH1BAA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Size: 33.0 cm high x 17.8 cm wide
Technology: Surface mount
Number of inputs: 12
OperatingTemperature: -30 to 65 oC
Product Type: Turbine Terminal Board
Availability: In Stock
Series: Mark VI
Functional Description
IS200TTURH1BAA is a turbine terminal board developed by GE. It is part of the Mark VI series. This system has a dedicated output specifically meant for the generator breaker coil. It provides power at a rating of 5 amperes (5A) and operates at a voltage of 125 volts direct current (V DC). The primary purpose of this output is to facilitate the closing and opening of the generator's main breaker, an essential function in the synchronization and control of the generator. The nominal voltage supplied to the breaker coil is maintained at 125 volts DC. This consistent voltage supply ensures reliable and stable operation of the breaker coil, crucial for its efficient functioning in synchronizing the generator.
Features
- Inputs for Turbine Speed Measurement: It accommodates 12 passive pulse rate devices that detect a toothed wheel's movement to gauge the turbine's speed accurately.
- Voltage Signals Acquisition: It captures signals from both generator voltage and bus voltage, extracted from potential transformers.
- 125 V DC Output: Provides a 125 V DC output designated for the main breaker coil, essential for automatic generator synchronization.
- Shaft Monitoring: It receives inputs from sensors dedicated to monitoring shaft voltage and current, facilitating the measurement of induced shaft voltage and current.
- Within the TTUR, there are three relays-K25, K25P, and K25A. All three relays must be activated simultaneously to supply the necessary 125 V DC power required for closing the main breaker 52G.
Signal distribution and connectors
- The speed signal, which travels to VTUR, is transmitted via the JR5 connector.
- Other various signals, such as generator voltage, bus voltage, shaft voltage, and current sensors, utilize the JR1 connector.
- For Triple Modular Redundant (TMR) systems, the signals branch out to different connectors: JR5, JS5, JT5, JR1, JS1, and JT1 connectors, ensuring redundancy and reliability within the system by offering multiple pathways for signal transmission and processing.
Installation
- Component Wiring to I/O Terminal Blocks TB1 and TB2: Magnetic pickups, shaft pickups, potential transformers, and breaker relays are connected to two I/O terminal blocks, TB1 and TB2. Each terminal block is secured in place with two screws and contains 24 terminals designed to accommodate wires up to #12 AWG in size.
Adjacent to each terminal block, there is a shield termination strip that is connected to the chassis ground. This setup ensures proper grounding and shielding of the connected components.
- Jumper Configurations (JP1 and JP2): Jumpers JP1 and JP2 serve the purpose of selecting between SMX or TMR settings for relay drivers K25 and K25P. These jumpers determine the operational mode for these relay drivers based on the specific requirements of the system.
- TB3 for Optional TTL Connections: TB3 is allocated for optional TTL connections specifically designed for active speed pickups. These connections typically necessitate an external power supply for their operation.
- Connector Usage for Simplex and TMR Systems: Simplex systems utilize cable connectors JR5 and JR1 for signal transmission and communication purposes.
TMR systems, designed for enhanced redundancy and reliability, utilize all six cable connectors (JR5, JS5, JT5, JR1, JS1, and JT1). This comprehensive usage of connectors allows for multiple signal pathways, typical in Triple Modular Redundant systems, ensuring fault tolerance and backup pathways for critical signals.
Operation
- Pulse Rate Signal Utilization: In simplex applications, the system can employ up to four pulse rate signals to precisely measure turbine speed. These signals serve as vital inputs for monitoring and controlling turbine operations.
- Synchronization Process: Generator and bus voltages are intricately integrated into the TTUR (Turbine Turbine) module for automatic synchronization. This synchronization process operates in tandem with VTUR, the turbine controller, and the excitation system, ensuring precise synchronization of electrical parameters for optimal system performance.
- Control Functions of TTUR: TTUR assumes pivotal roles in the synchronization process, featuring permissive generator synchronizing relays. Additionally, TTUR controls the main breaker relay coil 52G, facilitating safe and controlled operations of the main breaker.
The WOC team is always available to help you with your Mark VI requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS200TTURH1BAA?
It is a turbine terminal board developed by GE under the Mark VI series.
How many pulse rate signals are used in a simplex application to measure turbine speed?
In a simplex application, up to four pulse rate signals can be employed to measure turbine speed accurately.
What is the role of the component in automatic synchronizing?
The board integrates generator and bus voltages for automatic synchronizing in coordination with VTUR and the excitation system.
What functions does TTUR perform in generator synchronizing?
It manages permissive generator synchronizing relays and controls the main breaker relay coil 52G, crucial for the synchronization process.
