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IS200EDEXG1A IS200EDEXG1ADA | GE Exciter De-Excitation Board EX2100
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| Manufacture: | GE |
| Model number: | IS200EDEXG1A IS200EDEXG1ADA |
| Catalog: | EX2100 |
| Weight: | 0.5 kg |
| Dimension: | 0.54*1.19*0.96（CM） |
| Ordering information： | IS200EDEXG1A IS200EDEXG1ADA |
| Product origin: | United States (US) |
| Payment: | T/T |
| Condition: | Brand New |
| Lead time | In Stock |
| HS Code: | 8537101190 |
| Price： | $1000 (Market prices are subject to change, please contact us.) |
The EMIO initiates the de-excitation process via the EXTB board. A Hall-effect current sensor—mounted within the air gap of a circular steel core—is utilized to detect the field current. EDEX boards are categorized into two types: the first group is designed for SCR-based de-excitation, while the second group is intended for diode-based de-excitation. The EXTB controls the main circuit breaker or contactor within the field circuit, and the activation of auxiliary contacts triggers immediate de-excitation.
Core Functionality:
⚡ De-excitation Control: Dissipates the energy stored in the excitation inductance during generator shutdown. It enables SCR triggering for de-excitation, provides feedback on the conduction status of the discharge circuit, and ensures continued normal operation during power interruptions through a voltage-holding mechanism.
🧲 A Hall-effect conduction sensor is mounted within the air gap of a circular steel core and employs two independent sensing circuits to detect the magnetic field generated by the field discharge current flowing through the thyristor.
📐 Energy Discharge Process:
Generator Shutdown
↓
EMIO Initiates De-excitation (via EXTB Board)
↓
EXTB Board Controls Main Circuit Breaker or Contactor
↓
Auxiliary Contacts Close → EDEX Command Initiates Immediate De-excitation
↓
P24V Trigger Control Signal Sent to Two Trigger Control Circuits
↓
Trigger Circuits Send Gate Pulses → SCR Conducts
↓
Main Field Polarity Reverses → SCR Anode Becomes Positive
↓
SCR Conducts → Stored Energy Dissipated via Field Discharge Equipment
↓
Hall Effect Sensor Feedback Confirms Successful Discharge
Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Model | IS200EDEXG1A / IS200EDEXG1ADA |
| Product Type | De‑Excitation Module Main Control Board (EDEX) |
| Core Functions | SCR triggering for de‑excitation, conduction detection feedback, voltage regulation |
| Sensors | Hall‑effect transmission sensors (2 independent circuits) |
| Thyristor Size | 53 mm or 77 mm (for high‑performance applications) |
| Heat Sink | Large heat sink assembly + snubber network |
| Standard De‑Excitation Component | Freewheeling diode |
| Control Logic | 2 mutually independent control inputs |
| Master/Slave Configuration | Supported |
| Matching Board | EXTB board |
| Classification | Group 1 (SCR) / Group 2 (Diode) |
Customer Experience and Application Scenario:
🏭 Upgrade of an EX2100 Excitation System at a Large Power Plant
- Customer Background: A large power plant required an upgrade to its EX2100 excitation system, specifically mandating a reliable de-excitation capability.
- Solution: The IS200EDEXG1A de-excitation board was implemented, utilizing a primary SCR-based de-excitation configuration.
Customer Feedback (from the Plant's Electrical Specialist):
⭐⭐⭐⭐⭐ “The EDEX board rapidly dissipates the stored excitation energy during generator shutdown, thereby safeguarding equipment integrity. Two independent Hall-effect sensors monitor the discharge current in real-time, providing feedback to confirm that the discharge process was successful. The EXTB board controls the main circuit breaker; upon the triggering of its auxiliary contacts, immediate de-excitation is initiated.”
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Frequently Asked Questions：
Q: What is your company's Minimum Order Quantity (MOQ)?
A: We welcome small-batch orders; trial orders can be placed starting from just one unit.
Q: What is the shipping lead time?
A: In-stock products typically ship within 1–3 business days, while custom orders require 15–20 days.
Q: Do you provide technical support and product data sheets?
A: Yes, upon request, we can provide product data sheets in PDF format, as well as professional technical guidance.
Q: What is your company's warranty policy?
A: All of our products come with a 12-month warranty, effective from the date of shipment.
Payment Methods
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One-Year Warranty
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We are a supplier of automation spare parts and components from reliable and well-known brands. We mainly provide PLC modules, DCS control cards, ESD control cards, turbine monitors, vibration monitoring and asset protection systems.
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