GE XGF868I-1-1-OI-H-3-4-0-CC - Excitation Generator Field Control Module

GE XGF868I-1-1-OI-H-3-4-0-CC – Excitation Generator Field Control Module

In stock

Product Introduction:
The GE XGF868I-1-1-OI-H-3-4-0-CC is the most advanced excitation control module in the GE Mark VI product family. The full configuration string “XGF868I-1-1-OI-H-3-4-0-CC” decodes as follows: XGF = Excitation Generator Field, 868 = Model number, I = Isolated, 1 = Single-phase input, 1 = Single output stage, OI = Optical Isolation, H = Hardened (military/industrial grade), 3 = 3-Phase input sensing, 4 = 4-Pulse rectifier, 0 = Zero-sequence current compensation, CC = Conformal Coated, Revision CC. This module represents the pinnacle of GE excitation technology, combining precision voltage regulation, robust isolation, and environmental hardening in a single package. It is used in the most demanding power generation applications where excitation control failure is not an option.

Technical Specifications:
Board Type: Excitation Generator Field Control Module
Model: XGF868I
Configuration: 1-1-OI-H-3-4-0-CC (Full Configuration)
Input Sensing: 3-Phase voltage and current sensing (3)
Rectifier Type: 4-Pulse thyristor rectifier (4)
Zero-Sequence Compensation: Active zero-sequence current compensation (0)
Isolation: Optical isolation on all signals (OI)
Hardening: Industrial/military hardened components (H)
Conformal Coating: Full conformal coating for moisture and corrosion protection (CC)
Output Voltage: 0-600V DC (higher than XDP-221-2)
Output Current: 0-20A continuous (30A peak)
Voltage Regulation: +/- 0.25% (best-in-class)
Response Time: Less than 5ms (fastest in GE excitation family)
Communication: Dual redundant Mark VI backplane connections
Redundancy: Full A/B redundancy with automatic failover
Form Factor: Full-width Mark VI VIC bus card
Operating Temperature: -20 to +70 degrees Celsius (hardened)
Certifications: UL, CSA, CE, ATEX (hazardous area)

Functional Features:
0.25% Voltage Regulation: The tightest regulation in the GE excitation family, ensuring rock-solid generator voltage.
5ms Response Time: The fastest dynamic response, handling sudden load changes without any voltage deviation.
Optical Isolation: Complete galvanic isolation between control circuits and power circuits using optical couplers.
Zero-Sequence Compensation: Actively compensates for zero-sequence currents, preventing generator rotor heating.
4-Pulse Rectifier: Uses a 4-pulse thyristor bridge for smooth DC output with minimal ripple.
Conformal Coating: Full conformal coating protects against salt spray, humidity, and chemical exposure.
Dual Redundant Backplane: Two independent backplane connections ensure zero downtime on communication failure.
Automatic Field Flash: Discharges the generator field in under 500ms on trip, protecting the rotor winding.
Built-In Oscilloscope: Captures voltage and current waveforms during transients for post-event analysis.