Product Description
I. Product Overview
GE IS200BPPBH2CAA is a high-performance power supply module in the Speedtronic Mark VIe series control system of General Electric (GE), specifically designed for stable power supply to the control systems of industrial-grade steam turbines and gas turbines. As the "power core" of the Mark VIe system, it undertakes the key responsibilities of converting industrial alternating current (AC) into direct current (DC) required by various system modules, implementing power redundancy backup, and providing fault protection. It is the basic hardware that ensures the continuous and reliable operation of core components such as control modules, I/O modules, and communication modules, and is widely used in industrial scenarios with strict requirements for power supply stability and safety, such as power generation, petrochemicals, and metallurgy.
This module adopts a standard 6U VME industrial board form factor (approximately 160mm in height, 233mm in width, and 30mm in thickness), with no independent operation panel. It realizes power distribution and status interaction with other modules through the system backplane. The surface of the module adopts an industrial-grade anti-interference layout; key power chips (such as DC-DC converters and voltage regulation chips) are equipped with metal shields, and the pin soldering process complies with the IPC-A-610 Class 3 industrial standard. It can withstand long-term high-load operation and complex electromagnetic environments (such as motor start-stop and high-frequency interference from frequency converters), ensuring the stability and durability of the power supply function and adapting to harsh operating conditions in industrial sites.

II. Core Functional Features
1. Multi-Specification DC Power Output
With stable power supply as its core, the IS200BPPBH2CAA has the capability to convert 380V AC/220V AC industrial alternating current into multi-specification direct current. It can simultaneously output multiple voltage levels including +5V DC, ±12V DC, ±15V DC, and +24V DC to meet the power supply needs of different modules in the Mark VIe system:
+5V DC is mainly used to power the digital circuits of control modules, with a maximum output current of 10A;
±12V DC/±15V DC are suitable for analog circuits (such as the amplification circuits of signal acquisition modules), with a maximum output current of 5A;
+24V DC is used to power digital input/output modules and sensors, with a maximum output current of 8A.
The output voltage accuracy of each channel reaches ±0.5%, and the voltage ripple is ≤50mV, ensuring that all system modules operate in a stable power environment and avoiding logic operation errors or signal acquisition distortion caused by voltage fluctuations.
2. Dual Redundant Power Supply and Seamless Switching
To meet the high requirements for power supply reliability in industrial scenarios, the IS200BPPBH2CAA supports the "1+1" redundancy configuration mode: two modules can operate in parallel, with one serving as the main power supply and the other as the backup power supply. Real-time status monitoring and seamless switching are achieved through the built-in redundancy control circuit of the modules. When the main power supply fails due to abnormal input voltage, internal component faults, or other reasons, the backup power supply can automatically take over the power supply within 20ms, with no voltage fluctuation during the switching process (fluctuation range ≤±2%), ensuring uninterrupted power supply to all system modules. In addition, the module also supports linkage with external backup power supplies (such as UPS). When the industrial power grid is cut off, it automatically switches to UPS power supply, further enhancing the redundancy and risk resistance of the system power supply.
3. Comprehensive Power Protection Mechanism
The module has a built-in complete power protection function, constructing a multi-dimensional safety protection system:
Overcurrent Protection: When the output current of a certain channel exceeds 120% of the rated value, the protection circuit quickly cuts off the output of that channel to prevent damage to the module and subsequent equipment caused by load short circuits.
Overvoltage/Undervoltage Protection: When the input voltage exceeds the range of 380V AC±15%/220V AC±15%, or the output voltage exceeds ±10% of the rated value, the module automatically stops output and triggers an alarm.
Over-temperature Protection: When the internal temperature of the module exceeds 85℃, the over-temperature protection mechanism is activated to reduce the output power and trigger the high-speed operation of the cooling fan (if equipped). Normal output is resumed when the temperature drops below 60℃.
Short-circuit Protection: When a short circuit occurs at the output terminal, the module instantly cuts off all outputs to avoid burning the power chips or circuits due to excessive short-circuit current.
4. Real-Time Status Monitoring and Fault Alarm
The IS200BPPBH2CAA is equipped with complete status monitoring and alarm functions:
Through built-in voltage sensors, current sensors, and temperature sensors, it collects key parameters in real time, such as input voltage, output voltage/current of each channel, and internal temperature of the module, and uploads the data to the system controller via the backplane bus.
The module is equipped with 6 LED indicators (PWR: Power status, green; RUN: Operation status, green; FAULT: Fault status, red; +5V/+12V/+24V: Output status, green), which intuitively reflect the power supply status. For example, the extinction of an output indicator indicates abnormal power supply of that channel, and the flashing of the FAULT indicator indicates that the module is over-temperature or overcurrent protection is triggered.
At the same time, the module supports uploading fault information (such as overvoltage, overcurrent, and over-temperature) to the monitoring system through the communication interface, facilitating operation and maintenance personnel to locate and handle faults in a timely manner.
III. Key Technical Parameters
1. Electrical Parameters
Input Parameters: Supports dual-voltage input of 380V AC/220V AC, with an allowable voltage fluctuation range of ±15%; frequency range of 47Hz-63Hz, suitable for industrial power grid frequencies in most regions around the world; maximum input current of 15A (at 380V AC)/25A (at 220V AC); power factor ≥0.95, reducing harmonic pollution to the power grid.
Output Parameters:
+5V DC: Output current 0-10A, accuracy ±0.5%, ripple ≤20mV;
±12V DC: Output current 0-5A, accuracy ±0.5%, ripple ≤30mV;
±15V DC: Output current 0-5A, accuracy ±0.5%, ripple ≤30mV;
+24V DC: Output current 0-8A, accuracy ±0.5%, ripple ≤50mV;
Conversion Efficiency: AC-DC conversion efficiency ≥90% (at full load), DC-DC conversion efficiency ≥92%, effectively reducing the module's own power consumption, minimizing energy waste, and meeting the needs of green industry.
Anti-Interference Performance: Complies with the IEC 61000-6-2 industrial anti-interference standard, with ±2kV Electrostatic Discharge (ESD) protection, ±1kV Electrical Fast Transient (EFT) protection, and radio frequency radiation immunity ≥10V/m (80-1000MHz), enabling stable power supply in complex electromagnetic environments.
2. Environmental Parameters
Operating Temperature: -20℃~70℃, supporting wide-temperature operation and adapting to scenarios such as high-temperature workshops and outdoor control cabinets;
Storage Temperature: -40℃~85℃, with no risk of component aging or pin corrosion during long-term storage;
Humidity: 5%~95% (non-condensing). The module surface is coated with a moisture-proof insulating layer, and key internal components adopt hermetic packaging, allowing use in high-humidity and high-salt-spray coastal environments;
Vibration Protection: Complies with the IEC 60068-2-6 standard, capable of withstanding sinusoidal vibration with a frequency of 10-500Hz and an acceleration of 5g; complies with the IEC 60068-2-27 standard, capable of withstanding an impact of 50g acceleration (11ms pulse), avoiding interface loosening and component damage caused by equipment operation vibration or transportation impact.
3. Physical and Status Indication Parameters
Dimensions: 6U VME board form factor (160mm×233mm×30mm), compatible with standard 19-inch industrial control cabinet installation, and supporting hot swapping (requires Mark VIe system authorization);
LED Indicators: 6 status lights (PWR: Power input status, green; RUN: Normal operation status, green; FAULT: Fault status, red; +5V/+12V/+24V: Corresponding voltage output status, green). The RUN light stays on to indicate normal operation and blinks to indicate redundancy switching in progress; the FAULT light stays on to indicate a serious fault (such as short circuit, over-temperature) and blinks to indicate a minor fault (such as voltage deviation);
Backplane Interface: 1 VME64x backplane interface, used for communication with the system controller to transmit power status data (such as output voltage/current, module temperature), support the upload of fault alarm signals, and receive power control commands from the controller (such as remote restart) at the same time.

IV. Typical Application Scenarios
1. Thermal Power Plant — Power Supply for Steam Turbine Unit Control System
In the steam turbine control system of a 600MW thermal power plant, the IS200BPPBH2CAA serves as the core power module to provide stable power supply for the control modules (such as IS210MACCH2AEG), I/O modules (such as IS200AEPAH1ACB), and communication modules of the Mark VIe system:
It converts 380V AC plant power into +5V DC (for powering the processors of control modules), ±15V DC (for powering analog acquisition modules), and +24V DC (for powering the relays of digital output modules). The output voltage accuracy of each channel is ±0.3%, ensuring that the logic operation error of the control module is ≤0.1% and the analog input error of the signal acquisition module is ≤0.05%. Through the "1+1" redundancy configuration, when one power module fails due to power grid fluctuations, the backup module switches seamlessly within 20ms, avoiding the interruption of the steam turbine control function and ensuring the stable operation of the unit.
2. Petrochemical Industry — Power Supply for Gas Turbine-Driven Compressor Units
In the control system of gas turbine-driven compressors in natural gas processing plants, the IS200BPPBH2CAA undertakes the power supply task:
It converts 220V AC on-site power into multi-specification DC power to supply power to gas turbine control modules, vibration monitoring modules, and fuel valve control modules. In view of the strong electromagnetic interference on-site, the anti-interference design of the module can effectively suppress high-frequency interference generated by frequency converters, and the voltage ripple is controlled within 30mV, ensuring that the rotor vibration data (accuracy ±1μm) collected by the vibration monitoring module is true and reliable. When the on-site power grid voltage fluctuates (such as dropping to 180V AC), the wide-voltage input function of the module can still maintain stable output, avoiding inaccurate fuel valve control caused by excessively low voltage and ensuring the stable speed of the gas turbine (control accuracy ±0.2% of rated speed).
3. Metallurgical Industry — Power Supply for Waste Heat Power Generation Steam Turbine Control System
In the waste heat power generation project of an iron and steel plant, the control system of the waste heat steam turbine relies on the IS200BPPBH2CAA to achieve stable power supply:
The module converts 380V AC self-used power of the waste heat power station into +5V DC (for control modules), ±12V DC (for signal conditioning modules), and +24V DC (for sensors) to meet the power supply needs of all links in the system. Considering the high ambient temperature of the waste heat power station (the temperature inside the control cabinet reaches 55℃ in summer), the wide-temperature design of the module (operating temperature -20℃~70℃) ensures continuous operation in high-temperature environments. The internal temperature sensor monitors the temperature in real time, and when it exceeds 75℃, an over-temperature alarm is triggered and heat dissipation measures are activated. Through linkage with UPS, when the power grid of the waste heat power station is temporarily cut off (≤10min), it automatically switches to UPS power supply, avoiding emergency shutdown of the steam turbine caused by power failure of the control system and ensuring the continuous utilization of waste heat resources.