Description
GUTOR 0P6257
Technical Specifications:
- Power Supply: Supplied from internal rectifier auxiliary power circuit
- Control Algorithm: Constant voltage mode, constant current mode selectable
- Monitored Signals: AC input voltage, AC input current, DC output voltage, DC output current, internal temperature
- Protection Logic: Overvoltage, undervoltage, overcurrent, short circuit, overtemperature protection
- Communication Interface: Serial port for system status upload and remote parameter access
- Operating Temperature: -40 °C to +70 °C
- Storage Temperature: -40 °C to +85 °C
- PCB Protection: Conformal coating
- Mounting: Plug-in card inside GUTOR rectifier cabinet
- Certification: Compliant with industrial EMC and power equipment safety standards
Function Features:
- Precise thyristor firing angle control for AC to DC power conversion
- Automatic switching between constant voltage and constant current modes for battery charging
- Real-time measurement of all key electrical parameters of rectifier system
- Multi-stage protection logic to shut down power stage during fault events
- Fault event logging and status reporting for remote monitoring
- Self-diagnosis of onboard circuit health during power-up and runtime
- Parameter storage in non-volatile memory, retains settings after power loss
- Support manual and automatic mode switching for local maintenance operation
Application Scenarios:
- Industrial UPS rectifier control for power station backup power
- Oil and gas offshore platform DC battery charger systems
- Chemical plant critical safety load DC power supply
- Substation DC control and protection power system
- LNG terminal uninterruptible DC power equipment
Material Composition:
- Substrate: FR4 multilayer fiberglass printed circuit board
- Core Components: Industrial microcontroller, thyristor firing drivers, precision sampling circuits
- Connectors: Gold-plated edge connectors and screw terminal blocks
- Passive Components: High precision sampling resistors, high temperature capacitors, surge suppression diodes
- Coating: Transparent polyurethane conformal coating
- Hardware: Reinforced plastic card retainer and metal fixing screws
Structural Features:
- Standard plug-in Eurocard PCB form factor for rectifier cabinet slot
- PCB layout divides high-power sampling zone and low-voltage digital control zone
- Edge connector on rear side for cabinet backplane power and signal connection
- Screw terminal blocks on front edge for external measurement signal wiring
- Card locking clip for secure insertion and vibration resistance
- Conformal coating covers entire PCB surface against dust, moisture and corrosive gas
Working Principle: AC voltage and current sampling signals feed into the sampling circuit of 0P6257. The onboard microcontroller calculates actual output value and compares with setpoint. The board adjusts thyristor firing angle to regulate DC output voltage or current. When measured parameters exceed threshold values, protection logic triggers and blocks thyristor firing to stop power conversion. All fault events are recorded in non-volatile memory. Serial communication port transmits operating data and fault codes to upper monitoring system.
Installation Requirements:
- Insert control board into designated slot inside GUTOR rectifier cabinet
- Wear anti-static wristband during board replacement
- Check edge connector cleanliness before insertion
- Tighten terminal screws for external measurement signal wiring
- Ensure cabinet ventilation and temperature control
- Keep signal wiring separated from high-current power bus bars
Usage Notes:
- Backup configuration parameters before board replacement
- Perform rectifier calibration after installing new 0P6257 board
- Do not adjust internal potentiometers without professional calibration tools
- Disconnect all high-voltage power before removing the board
- Inspect conformal coating and connector gold plating during planned shutdown
- Review fault log to identify root cause when rectifier trips
