GE 151X1235DB15SA03 EX2100e 35A PCM Power Converter Module

Product Description: The 151X1235DB15SA03 is the GE EX2100e 35A PCM (Power Converter Module) assembly with ERSE, the core power output unit for the Mark VI generator static excitation system. It adopts IGBT PWM power conversion technology, receives voltage regulation commands from the ESYS excitation I/O board, and outputs adjustable DC excitation current to the generator rotor field winding. It supports brushless exciter, rotary DC exciter and SCT/PT regulator applications, realizes automatic voltage regulation, reactive power adjustment and excitation limit protection logic for synchronous generators in combined cycle power plants.

Features:

• Rated 35A excitation output, dedicated power module for GE EX2100e Mark VI excitation cabinet
• Integrated IGBT power bridge, AC/DC filtering circuit, pulse drive and current sampling loop
• ERSE equipped variant, built-in excitation field overcurrent, overvoltage, IGBT short-circuit protection
• High-speed PWM control, fast response for grid disturbance and generator transient conditions
• Heavy-duty heatsink convection cooling design, integrated status LEDs and fault diagnostic indicators
• Metal enclosure assembly, designed for high EMC interference power plant cabinet environments
• Works in single or dual redundant PCM architecture matched with EX2100e control logic
• SA03 suffix defines this specific firmware and component revision variant

Applications:

• Combined cycle gas turbine generator EX2100e static excitation cabinet
• Steam turbine synchronous generator automatic voltage regulation system
• Hydroelectric generator rotary exciter power output spare replacement
• Island power station and oil & gas self-generation unit excitation retrofit
• Legacy Mark VI EX2100e maintenance, overhaul and spare upgrade projects

FAQ:

Q: What does PCM stand for?
A: PCM = Power Converter Module, the power stage that supplies DC excitation current to generator field windings.

Q: What is the difference between 151X1235DB15SA03 and SA01 / SA02?
A: They are all 35A PCM, different suffix codes represent internal component BOM, firmware and protection setting revisions. They are not directly drop-in replacements, must match the EX2100e control firmware version.

Q: Can it work for Mark VIe EX2100eS system?
A: No, this PCM belongs to classic Mark VI EX2100e architecture, incompatible with Mark VIe IONet EX2100eS racks.

Q: Can it replace the 120A high-current PCM?
A: No, this is 35A rated, different power rating, power bridge and current sensing circuits are not compatible.

Q: Is 151X1235DB15SA03 still in production?
A: EX2100e Mark VI series is obsolete. Available supply is NOS surplus or fully tested refurbished power converter assemblies.