GE IS200ERDDH1ABA ERDD Exciter Regulator Dynamic Discharge IGBT Control Board For EX2100 EX2100e Generator Excitation System
- Product Code: IS200ERDDH1ABA
- Availability: In Stock
GE IS200ERDDH1ABA ERDD Exciter Regulator Dynamic Discharge IGBT Control Board For EX2100 / EX2100e Generator Excitation System
Manufacturer: GE Vernova / GE Gas Power
Part Number: IS200ERDDH1ABA (ERDD Exciter Regulator Dynamic Discharge Board, H1ABA full assembly variant, base model IS200ERDDH1A)
Product Type: Double-wide slide-in rack power control board, IGBT gate drive & DC link dynamic discharge core board for EX2100 ERBP excitation backplane
Matching Platform: GE Speedtronic Mark VI / Mark VIe gas/steam/hydro turbine EX2100 static excitation cabinet, compatible with simplex single regulator & hot standby dual redundant excitation architectures
Core Function: IGBT gate pulse drive signal generation for excitation power bridge; dynamic discharge circuit to suppress DC-link overvoltage; monitor field voltage, bridge current, power module RTD temperature; control K3 charging relay (simplex mode) / K41 de-excitation relay (redundant mode); real-time feedback signal sampling; multi-stage surge & EMI filtering; full-channel fault self-diagnosis; dual rear P1/P2 backplane connectors for redundant SRTP Ethernet communication with EGP main controller; front panel LED status indicators for run, link, overvoltage, overtemp, IGBT fault
1. Product Overview
IS200ERDDH1ABA (ERDD = Exciter Regulator Dynamic Discharge Board) is the core power drive and protection board for GE EX2100 static excitation control system, installed on ERBP excitation regulator backplane, working together with ERIO I/O board, EGP main control board and power thyristor bridge to complete generator excitation regulation and overvoltage protection.
It supports two system architectures: simplex single excitation regulator and dual hot-standby redundant excitation regulator. In simplex mode, it controls K3 charging relay; in redundant mode, it controls K41 de-excitation relay for fast field energy discharge during excitation trip.
Built-in dedicated IGBT gate drive circuit outputs precise pulse signals to control the conduction angle of the excitation power rectifier bridge, realizing continuous adjustment of generator field current. The integrated dynamic discharge circuit rapidly releases residual energy stored in DC-link capacitors and excitation windings during shutdown, trip or load rejection, effectively suppressing dangerous overvoltage and protecting power semiconductors and generator excitation windings from breakdown damage.
Onboard RTD temperature acquisition circuit monitors real-time temperature of power bridge IGBT modules; multi-channel voltage/current feedback sampling feeds operating status back to EGP main controller for closed-loop voltage regulation. Dual independent P1/P2 rear connectors realize redundant SRTP Ethernet communication, ensuring uninterrupted fault data upload and control command interaction when one communication link fails.
Full IPC-CC-830 conformal coated PCB, metal heat dissipation structure, industrial anti-corrosion, moisture-proof and anti-electromagnetic interference design, suitable for long-term stable operation in high-temperature, high-EMI power plant excitation cabinet environments. It cannot operate independently and must be matched with ERBP backplane, EGP master control board, ERIO signal board and power bridge to form a complete excitation regulation system.
This module is standard spare hardware for old Mark VI / EX2100 generator sets, widely used for excitation cabinet renovation, power bridge drive fault replacement and routine excitation system maintenance.
2. Complete Technical Specifications
• Compatible System: EX2100 / EX2100e static excitation rack, Mark VI / Mark VIe turbine control platform
• Mounting Carrier: ERBP Exciter Regulator Backplane, double-wide 6U rack slide-in module
• Operating Modes Support: Simplex single regulator, hot standby dual redundant regulator
• Relay Control Logic: Simplex: K3 charging relay; Redundant: K41 de-excitation discharge relay
• Core Drive Circuit: IGBT gate pulse drive for excitation thyristor power bridge
• Protection Function: Dynamic DC-link overvoltage discharge, over-temperature protection, IGBT short-circuit fault lockout, field winding energy absorption
• Feedback Sampling: Field voltage, bridge DC current, power module RTD temperature signal acquisition
• Backplane Communication: Dual redundant SRTP 10/100Mbps Ethernet via P1/P2 rear connectors
• Isolation Rating: 1500VAC isolation between power drive circuit and control logic circuit
• Front Panel Indicators: Run OK, Link A/B, DC Overvoltage, Over Temp, IGBT Fault LED status lamps
• Power Supply Input: 28VDC rack logic power, typical power consumption ~7.1W
• Operating Temperature: Industrial grade -30℃ ~ +65℃ continuous ventilation cabinet operation
• Storage Temperature: -40℃ ~ +85℃; Relative Humidity: 5% ~ 95% RH non-condensing
• Mechanical Parameter: Double-wide Mark VI rack board, net weight ~1.2kg, IP20 front dustproof grade
• PCB Protection: Full IPC-CC-830 conformal coating, anti-static industrial circuit board
• Compliance Standards: IEC 61000 industrial EMC anti-interference standard, UL508 industrial control equipment safety specification
3. Core Hardware Advantages
1. Integrated IGBT gate drive + dynamic overvoltage discharge dual functions, single board completes excitation power bridge drive and DC-link energy protection, reducing cabinet power board quantity
2. Support both simplex and hot standby redundant excitation architectures, flexible matching for single/dual redundant generator unit safety design requirements
3. Multi-dimensional real-time monitoring of voltage, current and power module temperature, full-link fault self-diagnosis to quickly locate power drive circuit damage
4. Dual P1/P2 redundant Ethernet backplane communication, single network link failure will not interrupt excitation drive state data upload, high system operation reliability
5. Wide temperature range operating design + full conformal coated anti-corrosion PCB, stable continuous operation in harsh power plant excitation cabinet environments with strong electromagnetic interference and high heat
4. Typical Application Scenarios
• Thermal power plant Mark VI gas turbine EX2100 static excitation cabinet core IGBT drive & dynamic discharge control board
• Combined cycle power plant steam turbine EX2100e dual redundant excitation regulator ERBP rack ERDD power control module
• Hydropower station generator excitation control rack power bridge pulse drive and overvoltage protection spare board
• Petrochemical self-owned power station Mark VIe unit excitation system de-excitation energy discharge core hardware
• Old EX2100 excitation cabinet transformation, daily power drive circuit fault replacement spare IS200ERDDH1ABA board
GE Vernova © IS200ERDDH1ABA ERDD Exciter Regulator Dynamic Discharge IGBT Control Board For EX2100 Generator Excitation Control System