3BHE006412R0101
ABB UNITROL Series Field Current Measurement & Excitation Limiter PCB Assembly
ABB
3BHE006412R0101
High-precision sampling of generator rotor field current and voltage from thyristor rectifier bridge, converting raw power analog signals into isolated low-level digital signals. Executes hardware-based excitation limit protection including maximum field current limiter, rotor thermal overload protection, and under-excitation reactive power boundary control. Provides galvanic isolation between high-voltage power circuits and low-voltage control logic to suppress EMI and surge transients. Real-time feedback closed-loop regulation for automatic voltage control and power factor adjustment.
Specifications
| Power Supply | 24 VDC ±20% |
|---|---|
| Power Consumption | ≤ 22 W |
| Isolation Rating | 3000 VAC |
| Sampling Precision | 16-bit ADC, ≤ ±0.2% FS |
| Operating Temperature | -20 °C ~ +60 °C |
| Dimensions | 342 mm × 118 mm × 16 mm |
| Compatibility | ABB UNITROL 5000 / 6000 |
| Certifications | CE, UL, IEC 61000, RoHS |
Product Description
High-precision sampling of generator rotor field current and voltage from thyristor rectifier bridge, converting raw power analog signals into isolated low-level digital signals. Executes hardware-based excitation limit protection including maximum field current limiter, rotor thermal overload protection, and under-excitation reactive power boundary control. Provides galvanic isolation between high-voltage power circuits and low-voltage control logic to suppress EMI and surge transients. Real-time feedback closed-loop regulation for automatic voltage control and power factor adjustment.
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