1. System Overview
| Part Number | Role | Core Function |
|---|---|---|
| 5SHY3545L0016 | Power Core | 8.5 kV / 5.5 kA light-triggered IGCT (Integrated Gate-Commutated Thyristor) |
| GVC736BE101 | Valve Base Electronics (VBE) | Optical trigger generation, status monitoring, protection logic |
| 3BHB020720R0002 | Valve Assembly | Integrates IGCT, heat sink, voltage-sharing circuit |
| 3BHE019719R0101 | Fiber Optic Module | Electrical ↔ optical conversion for isolated communication |
2. 5SHY3545L0016 – IGCT Power Device
Key Electrical Ratings
- Repetitive Peak Off-State Voltage (UDRM): 8.5 kV
- Average On-State Current (ITAV): 5.5 kA
- Surge Current (ITSM): High overload capability
- Max Junction Temperature: 125°C
- Trigger: Light-activated (via fiber optic)
Construction & Features
- Package: TO-267 high-power housing
- Technology: Buffer layer + transparent anode emitter (low loss, high ruggedness)
- Thermal: Low junction-to-case thermal resistance (forced air/water cooling)
- Protection: Built-in overvoltage clamping, overcurrent fast response
3. GVC736BE101 – Valve Base Electronics (VBE)
Core Functions
- Optical Trigger Generation: Decodes fiber-optic commands and generates precise gate pulses
- Condition Monitoring: Real-time sensing of voltage, current, temperature
- Fault Protection: Fast shutdown on overvoltage, overcurrent, overtemperature
- High-Voltage Isolation: 5 kVrms isolation between gate and main circuit
Electrical & Environmental Specs
- Supply Voltage: 24 V DC
- Power Consumption: ~4 W
- Operating Temperature: -20°C to +60°C
- Communication: Fiber optic (high noise immunity)
- Mounting: DIN rail or bolted
4. Working Principle
- Control Signal: Upper system (PCP) sends electrical trigger command
- Optical Conversion: 3BHE019719R0101 converts to light signal
- High-Potential Control: GVC736BE101 receives light signal → generates gate pulse
- Power Switching: 5SHY3545L0016 turns on, conducting high current
- Protection: GVC736BE101 monitors status; faults trigger fast shutdown
5. Typical Applications
- HVDC Transmission: Long-distance power transfer
- FACTS: SVC, STATCOM (reactive power compensation)
- Medium-Voltage Drives: Rolling mills, mine hoists, large fans/pumps
- Renewable Energy: Wind/solar inverters (grid integration)
- Industrial Power: Electrolysis, smelting, high-power rectification
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