Description

GE IS200RAPAG1BCA Mark VIe Redundant Power Adapter Module

Detailed Parameter Table

Parameter Name | Parameter Value ———|——– Product Model | **IS200RAPAG1BCA** Manufacturer | GE General Electric Product Category | Industrial Redundant Power Adapter Module Series | Mark VIe (Turbine Control System) Redundancy Mode | 1+1 Hot Standby, Automatic Switchover (≤5ms) Input Voltage | 100-240V AC (Dual Independent Input), 24-48V DC (Optional) Output Voltage | 24V DC ±0.5V (Dual Isolated Output) Output Current | 20A per Channel, 40A Total (Dual Channel Parallel) Efficiency | ≥92% (Full Load) Ripple and Noise | ≤50mVpp Isolation Voltage | 2500V AC (Input to Output, Channel to Channel) Protection Functions | Overvoltage, Overcurrent, Short Circuit, Over Temperature, Input Under Voltage Diagnostic Signals | Power Status (OK/FAULT), Redundancy Switchover Status, Load Current Monitoring Operating Temperature | -20°C to 70°C Storage Temperature | -40°C to 85°C Protection Rating | IP20 (Module), NEMA 12 (Chassis Mount) Physical Dimensions | 150mm × 120mm × 35mm Certifications | UL 508, CE, CSA, IEC 61010-1, IEC 61508 (SIL 2) Communication Interface | MODBUS RTU/TCP, GE SRTP (for Status Feedback)

Product Introduction

The **GE IS200RAPAG1BCA** is a high-reliability redundant power adapter module tailored for GE’s Mark VIe turbine control system, specializing in providing continuous, stable, and redundant DC power supply for critical components of the turbine control system. As the core power guarantee unit in GE’s industrial redundant portfolio, this module is designed to supply power to key devices such as turbine control modules (e.g., IS200MACCH1B), I/O modules (e.g., IS200RCSAG1ABB), and safety interlock systems. By adopting 1+1 hot standby redundant architecture, it ensures that the power supply will not be interrupted due to a single power channel failure, effectively avoiding control system downtime caused by power outages. Its ultra-fast switchover capability, high-efficiency power conversion, and SIL 2 functional safety certification make it an essential equipment for large-scale thermal power plants, nuclear power auxiliary systems, offshore gas turbine platforms, and other critical applications where the reliability of the control system power supply is crucial.

What distinguishes the **GE IS200RAPAG1BCA** is its seamless redundant power supply mechanism, high-efficiency and stable power conversion, and comprehensive safety protection—advantages that address the core demand for power supply reliability in critical turbine control scenarios. Leveraging GE’s advanced redundant power management technology, the module adopts dual independent power channels with completely isolated hardware design, each channel integrating a high-frequency switching power supply, voltage regulation circuit, and status monitoring unit. The automatic switchover time between channels is less than 5ms, which is far shorter than the power-off retention time of the Mark VIe control module, ensuring no impact on the normal operation of the control system during switching. With ≥92% full-load efficiency, it reduces energy consumption and heat generation, while 2500V AC high-voltage isolation and multi-level protection functions (overvoltage, overcurrent, etc.) effectively resist power grid fluctuations and harsh industrial interference. By building a solid “power safety net” for the turbine control system, it provides reliable power support for the stable operation of the entire turbine unit.

Core Advantages and Technical Highlights

1+1 Hot Standby Redundancy and Ultra-Fast Switchover: The **IS200RAPAG1BCA** adopts a full 1+1 hot standby redundant design, where two power channels operate simultaneously under normal conditions, sharing the load current equally (each channel bears 50% of the load). The built-in redundant control unit continuously monitors the operating status of both channels (including input voltage, output voltage, load current, and module temperature). When a fault (such as input power failure, output overvoltage, or module overheating) occurs in one channel, the system automatically switches the entire load to the normal channel within 5ms, with no voltage fluctuation during the switching process (fluctuation ≤±0.2V). The switchover status is immediately fed back to the upper control system via MODBUS/GE SRTP protocol, enabling maintenance personnel to locate and handle faults in a timely manner.

High-Efficiency Power Conversion and Stable Output: Each power channel of the module adopts a high-frequency switching power supply design with ≥92% full-load efficiency, which is 5-8% higher than traditional linear power supplies, significantly reducing energy consumption and heat generation in the control cabinet. The output voltage is stabilized at 24V DC ±0.5V, and the ripple and noise are controlled within 50mVpp, ensuring that the sensitive electronic components of the Mark VIe control module (such as microprocessors and ADC chips) receive clean and stable power. The module supports a wide input voltage range of 100-240V AC, adapting to different power grid standards at home and abroad, and can also be optionally configured with 24-48V DC input to meet the power supply requirements of off-grid scenarios such as offshore platforms.

Comprehensive Protection and Diagnostic Functions: The module is equipped with a multi-level safety protection system, including input under-voltage protection (AC ≤85V), output over-voltage protection (DC ≥28V), over-current protection (per channel ≥25A), short-circuit protection (automatic current limiting), and over-temperature protection (≥85°C). When an abnormal condition occurs, the module will quickly cut off the faulty channel output and trigger an alarm, while ensuring the normal operation of the standby channel. The built-in diagnostic unit can monitor the load current of each channel in real time (resolution 0.1A), and output detailed status information (power OK, fault type, load percentage) to the upper system through the communication interface, facilitating predictive maintenance and fault diagnosis.

Seamless Integration with Mark VIe Ecosystem: The **IS200RAPAG1BCA** is designed with a standard Mark VIe chassis mounting interface, which can be directly installed in the Mark VIe control cabinet and perfectly matched with the redundant architecture of the control system. It supports dual independent input power supplies (connected to two different power grids or UPS systems) to avoid common-point faults in the input link. The module communicates with the Mark VIe control module (IS200MACCH1B) through GE SRTP high-speed protocol, realizing real-time synchronization of power status and diagnostic data. It also supports MODBUS RTU/TCP protocol, which can be connected to third-party SCADA systems for centralized power monitoring. The module supports online firmware update without power-off, ensuring the maintainability of the redundant power system.

IS200RAPAG1BCA

Typical Application Scenarios

In large-scale thermal power plant ultra-supercritical steam turbine control systems, the **IS200RAPAG1BCA** serves as the core redundant power supply unit for the Mark VIe system. It provides continuous 24V DC power for key components such as the turbine main control module (IS200MACCH1B), redundant I/O module (IS200RCSAG1ABB), and emergency shutdown system. The module’s two input channels are respectively connected to the plant’s main power grid and UPS backup power grid. When the main power grid suddenly fails due to a grid disturbance, the module completes the switch to the UPS power supply channel within 3ms, and the turbine control system does not experience any power interruption, ensuring the stable operation of the 1000MW unit and avoiding power generation losses caused by control system downtime.

In offshore gas turbine power generation platforms, the **IS200RAPAG1BCA** is responsible for supplying power to the gas turbine control system and safety monitoring equipment. Considering the harsh offshore environment, the module is configured with 24-48V DC dual input (connected to the platform’s main DC power supply and solar backup power supply), and its -20°C to 70°C operating temperature range adapts to the large temperature changes at sea. When the platform’s main power supply is interrupted due to severe weather such as typhoons, the module quickly switches to the solar backup power supply, ensuring that the gas turbine’s fuel control, speed regulation, and emergency shutdown systems continue to operate normally, avoiding equipment damage and environmental pollution caused by unexpected shutdowns.

In nuclear power plant auxiliary turbine systems (such as feedwater pump control systems), the **IS200RAPAG1BCA** provides redundant power supply for safety-related control components, including the auxiliary turbine control module, vibration monitoring system, and reactor interlock interface module. Its SIL 2 functional safety certification meets the strict safety requirements of nuclear power plants, and the 2500V AC high-voltage isolation ensures that the power system does not interfere with the sensitive electronic equipment of the nuclear power plant. The module’s over-temperature and over-current protection functions can effectively prevent fire hazards caused by power module failures, and the real-time load monitoring function can predict potential power supply risks in advance, providing a reliable power guarantee for the safe operation of the nuclear power plant.

Related Model Recommendations

**IS200RAPAG2BCA**: High-power variant of **IS200RAPAG1BCA**, with 30A per channel output current and 60A total load capacity, suitable for large-scale Mark VIe systems with high power consumption (such as multi-turbine combined-cycle power plants).

**IS200MACCH1B**: Redundant Mark VIe control module that receives power status and diagnostic data from **IS200RAPAG1BCA** through GE SRTP protocol, and triggers corresponding fault handling logic when the power supply is abnormal.

**IS200PWRPG1A**: Mark VIe power distribution module that distributes the stable 24V DC output of **IS200RAPAG1BCA** to multiple sub-modules, with independent fuses and status indicators for each output branch.

**IS200RCSAG1ABB**: Redundant control signal module that relies on the stable power supply of **IS200RAPAG1BCA** to realize dual-channel redundant acquisition and output of turbine control signals, ensuring the reliability of the signal control link.

**IC754VSF12CTD-EX-Pro**: Redundant monitoring HMI that displays the real-time power status, load current, and fault information of **IS200RAPAG1BCA**, supporting on-site and remote power system management.

**IS200MCCPG3A**: Dual redundant communication module that transmits the diagnostic data of **IS200RAPAG1BCA** to the plant-level SCADA system through redundant networks, ensuring uninterrupted power status monitoring.

**IS200BATP1A**: Mark VIe backup battery module that is matched with **IS200RAPAG1BCA** to provide short-term emergency power supply (≥10 minutes) when both dual input power supplies fail, ensuring the safe shutdown of the turbine control system.

IS200RAPAG1BCA

Installation, Commissioning and Maintenance Instructions

Installation preparation: Before installing **IS200RAPAG1BCA**, power off the entire Mark VIe control cabinet and confirm the compatibility of the mounting slot (reserve sufficient heat dissipation space around the module, ≥10cm). The dual input power supplies of the module must be connected to two independent power sources (such as main power grid and UPS) to avoid common-point faults; use copper core cables with cross-sectional area ≥4mm² for input wiring, and ≥2.5mm² for output wiring. Ensure that the input and output terminals are tightly connected to prevent contact resistance from causing overheating. Configure communication parameters (such as MODBUS address, baud rate) and protection thresholds (such as over-voltage value) via Mark VIe Configuration Studio. Perform insulation resistance testing (input to ground ≥500MΩ, output to ground ≥500MΩ) and power-on pre-test (verify that both channels output normally) before formal operation.

Maintenance suggestions: Conduct daily remote monitoring of the power status, load current, and temperature of **IS200RAPAG1BCA** via the upper system, focusing on checking whether the output voltage is within the range of 23.5-24.5V DC and whether the load of each channel is balanced. Perform monthly on-site inspections: clean the dust on the module radiator, check the tightness of the input/output terminals (torque ≥1.5N·m), and measure the module surface temperature (normal ≤60°C). Test the redundant switchover function quarterly: manually cut off one input power supply and verify that the switchover time is ≤5ms, and the output voltage fluctuation is ≤±0.2V. Perform semi-annual calibration of the output voltage and current detection accuracy using a high-precision multimeter. Conduct annual insulation resistance testing (input to output ≥2500MΩ at 2500V AC) and aging inspection of the power module capacitors. Update the module firmware annually via GE’s secure technical platform to optimize power management performance.

Service and Guarantee Commitment

GE General Electric provides a 60-month quality guarantee for the **IS200RAPAG1BCA**, covering manufacturing defects, redundant switchover failures, output voltage instability, protection function abnormalities, and communication interface malfunctions under normal operating conditions. Our professional power system technical team offers 24×7 on-site and remote emergency support, including power system fault diagnosis, redundant switchover testing, and customized power supply solution design. Customers receive exclusive access to GE’s Mark VIe power configuration tools, SIL 2 certification documents, and redundant power system maintenance training materials. Priority service customers enjoy 24-hour emergency replacement of faulty modules, free annual power system health checks, and dedicated technical account managers—ensuring the long-term reliable operation of the turbine control system power supply. For nuclear power and offshore applications, we provide extended warranty options (up to 84 months) and on-site resident technical support services.