World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.
IS200TSVAH1A - Turbine Servo Valve Actuator Interface Module is available in stock which ships the same day.
IS200TSVAH1A - Turbine Servo Valve Actuator Interface Module comes in UNUSED as well as REBUILT condition.
To avail our best deals for IS200TSVAH1A - Turbine Servo Valve Actuator Interface Module, contact us and we will get back to you within 24 hours.
SPECIFICATIONS:
Part Number: IS200TSVAH1A
Manufacturer: General Electric
Series: Mark VI
Product Type: Turbine Servo Valve Actuator Interface Module
Number of Trip Solenoids: 3
Input Voltage: 24-28 V DC
Trip Solenoid rating: 125 V
Input Signal Type: Digital and Analog Control Signals
Mounting: DIN-rail mounting
Technology: Surface mount
Trip interlock AC Voltage Rejection: 60 V rms
Size: 17.8 cm wide x 33.02 cm high
Operating temperature: -30 to 65°C
Repair: 3-7 Days
Availability: In Stock
Country of Origin: United States
Manual: GEH-6421l
FUNCTIONAL DESCRIPTION:
IS200TSVAH1A is a Turbine Servo Valve Actuator Interface Module manufactured and designed by General Electric as part of the Mark VI Series used in GE Speedtronic Gas Turbine Control Systems. It functions as a critical interface between the digital control system and the turbine hydraulic actuators, translating electronic control signals into precise hydraulic motion to regulate turbine valve positioning. The module ensures accurate and responsive valve actuation, enabling precise control of turbine speed, load distribution, and overall efficiency.
Beyond normal operational control, the module plays a key role in turbine safety. It integrates with emergency trip systems, enabling immediate actuation of servo valves to close during overspeed or fault conditions, thereby protecting the turbine from mechanical damage or unsafe operating states. Additionally, the module provides feedback signals to the control system, allowing real-time monitoring of valve positions, verification of command execution, and diagnostics for preventive maintenance.
INSTALLATION:
The module must be mounted in a turbine control cabinet or on a DIN rail in a vibration-free, clean environment that is protected from moisture, dust, and excessive heat. All electrical connections, including power supply, control inputs, and feedback outputs, must strictly follow the GE Mark VI wiring diagrams. Signal segregation between analog and digital lines is critical to prevent electromagnetic interference, and proper grounding of the module is mandatory to ensure stable operation. The DC power supply must meet the specified voltage range, and in critical applications, redundant feeds are recommended to maintain uninterrupted operation. Before mounting, insulation resistance checks and continuity verification should be conducted to confirm the integrity of all wiring and connectors.
OPERATION:
During normal turbine operation, it continuously receives digital control signals from the GE Mark VI or compatible turbine control system. These signals are converted into precise hydraulic commands that regulate the position of the turbine servo valves, ensuring accurate control of steam or gas flow. This enables fine-tuned speed regulation, load distribution, and efficiency optimization while minimizing mechanical stress on the turbine components. The module’s internal feedback circuits continuously monitor valve positions, providing real-time signals to the control system for closed-loop correction and ensuring that actuator motion corresponds exactly to commanded setpoints. Smooth modulation of the valves also reduces hydraulic shocks and vibration, contributing to long-term reliability and optimal turbine performance.
SIGNAL INTEGRITY (SI):
Signal integrity refers to the quality and reliability of electrical signals transmitted between the control system and the servo valve actuator module. In IS200TSVAH1A, digital or analog control signals must maintain correct voltage levels, timing, and waveform shapes to ensure accurate valve actuation. Poor signal integrity can result in delayed, distorted, or incorrect valve movements, which may compromise turbine speed regulation, load distribution, or emergency trip responses. Factors affecting SI include cable length, impedance mismatch, connector quality, and electrical noise. Proper wiring, shielding, and grounding practices are essential to preserve signal integrity in high-power turbine environments.
Electromagnetic Interference (EMI):
EMI is unwanted electromagnetic energy from external or internal sources that can disturb or degrade electrical signals in the module. In the IS200TSVAH1A, EMI can originate from nearby high-voltage equipment, power converters, or switching devices and can cause erratic valve positioning or false feedback readings. To mitigate EMI, the module employs shielded cabling, proper grounding, and filtering circuits. Maintaining signal separation between analog and digital lines and avoiding routing control cables near high-current power cables are critical to reducing EMI impact. Effective EMI management ensures precise, repeatable valve actuation and reliable turbine control operation.
WOC maintains one of the industry’s largest inventories of OEM replacement parts for GE Speedtronic Gas Turbine Control Systems, ensuring fast delivery and dependable support for your operational needs. Along with supplying high-quality unused and expertly rebuilt components, each backed by a solid warranty. We also offer comprehensive repair services to restore faulty boards to optimal performance. Our highly skilled technical team is available 24/7 to assist with OEM requirements, system diagnostics, and all types of automation challenges. With years of experience and a strong commitment to customer satisfaction, we ensure smooth, reliable, and efficient plant operations. For pricing, availability, or repair assistance, simply reach out to our team by phone or email, and we’ll provide prompt, professional support.
What is the IS200TSVAH1A?
It acts as an interface between the turbine control system and hydraulic servo valves, converting digital or analog signals into precise hydraulic motion. This enables accurate valve positioning for turbine speed regulation, load control, and emergency trips.
How does the module control turbine valves?
The module receives electrical control signals from the control system and translates them into hydraulic commands that actuate the turbine valves. It provides continuous feedback to the control system, ensuring precise valve positioning and responsive operation during normal and emergency conditions.
How is the module calibrated during commissioning?
Calibration involves loop tuning to align commanded signals with actual valve movement, verifying hydraulic travel, deadband, and feedback accuracy. The process ensures the module responds precisely to control system instructions and maintains optimal turbine performance and safety compliance.
