Core Function
- Signal Conversion and Conditioning
Current Conversion Function
The built-in current transformer converts high currents on the high-voltage side (such as the generator excitation circuit current) into a standard, measurable signal on the low-voltage side (typically 0-5A or 4-20mA), enabling safe monitoring.
Signal Isolation
Electrical isolation technology effectively blocks electromagnetic interference from high-voltage circuits to the control system, ensuring signal transmission purity.
- System Protection Mechanism
Overcurrent Detection
Real-time monitoring of the excitation current. When abnormal overcurrent is detected, protection mechanisms are triggered to prevent equipment damage (such as generator rotor winding overheating).
Fault Diagnostic Interface
Onboard test points TP1-TP6 support online diagnostics:
- Waveform detection (e.g., observing PWM signals with an oscilloscope)
- Voltage/current parameter calibration
- Ground fault location
- Control Optimization Support
Dynamic Response Adjustment
Working with the EX2000 controller's PID algorithm, it provides accurate current feedback signals, optimizing the excitation system's response speed (typical adjustment time <100ms).
Multi-mode compatibility
Supports multiple control modes, including automatic voltage regulation (AVR) and power factor regulation (PF), to adapt to different grid operation requirements.
