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Core Product Advantages
Proven & Globally Validated: Backed by over 50 years of GE excitation technology expertise, it has over 10,000 global installations across 70 countries, compatible with more than 6,000 generator units. It supports Mark VIe control platform, with its compatibility and stability fully verified by field applications worldwide.
Triple Modular Redundancy for Zero Single Point Failure: Adopts TMR triple redundant architecture (M1/M2/C) with bumpless master-standby switching within 20ms. Equipped with redundant controllers, power supplies and cooling fans, it perfectly meets high-reliability operation demands for nuclear power plants and core grid power stations.
High Precision & Fast Response: Features voltage regulation accuracy of ±0.2% and dynamic response time below 15ms. Built-in PSS (Power System Stabilizer) effectively suppresses low-frequency oscillation. Its strong field forcing capability copes with grid short-circuit faults and improves power system transient stability.
Fully Integrated Digital Operation & Maintenance: Equipped with ControlST software suite including ToolboxST and WorkstationST. It enables remote configuration, on-site diagnosis, fault traceback and automatic parameter tuning. Supporting Modbus TCP and EGD protocols, it seamlessly connects with DCS and SCADA systems to cut O&M costs.
Wide Compatibility & Easy Retrofit: Available in 35A/120A dual power ratings, suitable for brushless and brushed excitation systems as well as SCT/PPT regulation modes. Compatible with both new and old generator sets, it supports control-only renovation solutions to shorten construction period and reduce upgrading expenses.
Product Features
1. Hardware Specifications
Model: 151X1235DB10SA01 (EX2100e 35A PCM)Power Output: 35A DC continuous at 250V, short-time overload 70A for 10 secondsInput Power: AC 90–280Vrms (single/three-phase, max 480Hz); DC 125–250V (backup battery)Power Device: IGBT full bridge with PWM modulation; dynamic discharge (DD) circuit suppresses overvoltage caused by load rejectionPhysical Parameters: Dimension 292×130×27mm, weight 3.2kg, IP20 protection degree, operating temperature 0–40℃
2. Core Functions
Regulation Modes: AVR (Automatic Voltage Regulation), FCR (Field Current Regulation), FVR (Field Voltage Regulation), PSS (Power System Stabilizer)
Protection Functions: Overexcitation/underexcitation protection, V/Hz limitation, PT loss detection, temperature bias, reactive power limitation, rotor earth fault protection
Communication Interfaces: Ethernet (EGD/Modbus TCP), RS-485; compatible for interconnection with Mark VIe, HMI, historical stations and third-party DCS systems
Diagnosis & Maintenance: Real-time data acquisition, fault code database, event log, waveform recording, on-line calibration and remote firmware upgrade
Application Scenarios
Large Thermal Power Plants: Applied to 300MW–1000MW turbo generators for voltage stabilization and reactive power regulation, equipped with PSS to suppress power oscillation, suitable for supercritical and ultra-supercritical generating units.
Hydropower Stations: Compatible with mixed-flow, axial-flow and impulse water turbine generators. It supports peak regulation, phase modulation and isolated grid operation, and responds rapidly to water level and load fluctuations.
Gas & Combined Cycle Power Plants: Matches heavy-duty gas turbines such as GE 9F/HA series. It adapts to frequent start-stop and peak shaving operations and ensures stable grid connection performance.
Industrial Captive Power Stations: Widely used in iron & steel, petrochemical, papermaking and data center industries. It supports both isolated and grid-connected operation modes to guarantee power supply quality for sensitive loads.
Nuclear Power & New Energy Supporting Projects: Used for excitation control of nuclear power units and synchronous condenser excitation in wind and photovoltaic power stations, effectively stabilizing grid integration of new energy sources.
FAQ
1. What are the differences between EX2100e PCM (151X1235DB10SA01) and the old EX2100 model?
EX2100e is an enhanced version with upgraded IGBT hardware and optimized redundant structure. It adopts ControlST software and supports remote diagnosis and automatic parameter tuning. The traditional EX2100 has no TMR redundancy, limited software functions and is being phased out gradually.
2. How to replace the module quickly after failure?
It supports hot swapping without unit shutdown. Disconnect wiring after power off and install the identical module. ToolboxST synchronizes parameters automatically, and the whole replacement can be finished within 5 minutes. The redundant system switches to standby module automatically with no outage risk.
3.How to solve severe voltage fluctuation and unstable regulation?
Check wiring and accuracy of PT/CT, and calibrate input channels; optimize PSS parameters and ensure PSS is put into operation; inspect loose connections in excitation circuit and aging IGBT devices; upgrade firmware to the latest version and enable automatic parameter tuning function.
4.What generator capacity range is applicable?
The 35A PCM fits generators from 10MW to 300MW; the 120A PCM is suitable for 300MW to 1000MW generators. Larger capacity can be realized by parallel connection.
5.How to realize remote monitoring and diagnosis?
Connect to ControlST via Ethernet to remotely view real-time data, historical curves and fault logs. Users can remotely modify parameters, upgrade firmware and conduct redundant switching tests without on-site operation.
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