Product Description
Model LDSTA‑01, ABB part number 3BHB007441P0001 (replacement ID:63940143) is a thyristor‑status monitoring PCB assembly for ABB excitation systems and SCR rectifier power cabinets. It samples thyristor gate‑firing and operating signals, provides galvanic isolation & signal conditioning, and feeds power‑unit diagnostic status back to main control system. On‑board isolation transformer, signal‑conditioning circuits and terminal blocks are integrated.
Key Specifications
| Item | Specification |
|---|---|
| Model | LDSTA‑01 |
| ABB Part Number | 3BHB007441P0001; replacement part:63940143 |
| Full Name | Thyristor Status Board |
| Function | Thyristor power‑unit status sensing, fault‑signal isolation & conditioning, status feedback to main controller |
| Power Supply | Cabinet internal auxiliary power; Power consumption ＜5 W |
| Construction | Industrial PCB with isolation transformer, signal circuits and terminal blocks |
| Mounting | Bare plug‑in PCB for cabinet‑internal installation; no enclosure |
| Protection Rating | IP00; must be installed inside control cabinet |
| Net Weight | 0.21 kg |
| Operating Temperature | ‑10℃ ~ +60℃ |
| Storage Temperature | ‑25℃ ~ +70℃ |
| Humidity | 5‑95 %RH non‑condensing |
| LED | On‑board LEDs for operation, warning and fault indication |
| Compatible Systems | ABB synchronous‑machine excitation cabinets, SCR rectifier units, medium‑voltage drive power sections |
| Lifecycle | OEM discontinued; for maintenance spare‑parts only |
| Certifications | CE, RoHS |
Applications
- Thyristor monitoring for generator excitation cabinets in power plants
- Status feedback for industrial SCR rectifier power units
- Fault‑diagnosis signal loop for legacy ABB excitation and medium‑voltage drive systems
- Spare‑part replacement for drive/excitation retrofits & maintenance.
Important Notes
- No gate‑pulse output, only status sensing; cannot function as thyristor driver board.
- Verify part number
3BHB007441P0001, hardware revision and terminal wiring before replacement. - Bare PCB assembly; inspect transformer, capacitors and terminals for corrosion / cold‑solder joints.
- Not recommended for new projects; replacement part 63940143 is functionally interchangeable.
There are no reviews yet.