Overview
Manuals
Working Principle
Core Functional Applications
Features:
- Standard component VTUR (Turbine Protection) printed circuit board
- High-performance Primary Turbine Protection I/O Card
- General Electric VI Series Speedtronic Gas Turbine Control System
The primary function of this board is to perform primary turbine protection, protecting the generator set from severe mechanical damage by acquiring key physical and electrical parameters in real time.
It is equipped with multiple dedicated sensor input channels, capable of simultaneously monitoring up to four magnetoelectric passive speed probes (MPUs), capturing turbine speed and instantaneous acceleration with extremely high response speed.
The IS200VTURH2BAC General Electric Turbine Protection I/O Board may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric IS200VTURH2BAC Turbine Protection I/O Board INFO(manual), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
During system operation, a passive magnetic sensor converts the turbine shaft rotation into an analog electrical signal proportional to the frequency, which is then input to the control board. The control board's internal filters and high-speed signal conditioning circuitry reduce noise in the signal. The microprocessor and FPGA then work together to convert this signal into a high-precision digital speed value that can be processed by a computer. This value is then uploaded to the main controller in real time for a "two-out-of-three" (2/3) median selection.
1.Overspeed protection and trip solenoid valves: Passive magnetic pickup sensors monitor four independent shaft speed inputs. It employs a median selection architecture to evaluate the controller's speed input. If the main trip threshold is exceeded, it outputs a signal to the TRPG terminal block, where a 2/3 voting relay circuit rapidly disconnects power to the fuel/steam trip solenoid valve.
2.Flame detection diagnostics: A Geiger-Miller flame detector is directly connected to the gas turbine combustion chamber. It monitors the electrical excitation level to assess the presence of a flame and automatically issues a system alarm when soot or carbon deposits begin to reduce the light transmission path.
3.Shaft voltage and current monitoring: Assessing residual current on the generator shaft to prevent high-voltage arcing on the main bearings, thereby reducing premature wear of the equipment.
