Deskripsi
Electric Dust Removal Control Cabinet Motherboard
Model : GGAJ02-Y-1010P2
Product Name: Electric Dust Removal Control Cabinet Motherboard
Measuring range : 0-100
Measurement accuracy : 0.1%
Dimensions : 400x300x60 mm
Function: Acts as the central processing and control unit of the ESP cabinet, coordinating power supply regulation, spark detection, feedback processing, and protection logic.
Category: ESP control system mainboard (motherboard)
Brand : YINGLI ENVIRONMENTAL PROTECTION
Product Overview :
The GGAJ02-Y-1010P2 is the main control core of the electrostatic precipitator microcomputer automatic voltage controller.
I. Controller Components and Structure The electrostatic precipitator microcomputer automatic voltage controller internally consists of a main control board, an integrated board, and a peripheral interface board—the sampling signal board. Board The main control board is a high-performance single-chip microcomputer system using the MCS-96 series 16-bit single-chip microcomputer 80C196KB as its core. Its key chips include: microcontroller, 80C196KB RAM, 62256 read-only memory, PSD311 removable memory, 93LC66 D/A converter, AD558TD programmable parallel interface, and 8255A . In addition to the microcontroller and peripheral chips, the main control board also includes a 2×16 character LCD driver circuit, function key input circuit, serial communication optical isolation driver circuit, and a watchdog reset circuit. 2. Integrated Board The integrated board’s main circuits include a regulated power supply, zero-crossing pulse signal generation, analog signal processing inputs and spark detection, I/O interfaces, and light-controlled thyristor triggering. 3. Sampling Signal Board The sampling signal board includes signal sampling and meter shunt components.
Specifications (typical for Yingli ESP motherboards):
- Input Signals:
- Secondary voltage and current feedback from T/R set
- Temperature and protection signals (via feedback boards like DZB-30)
- Spark/arc detection signals
- Output Control:
- Trigger signals to SCR firing board (e.g., SCR-V1.2)
- Regulation commands for high-frequency power supply or conventional T/R set
- Control Features:
- Automatic voltage/current regulation
- Spark rate control and arc suppression
- Adaptive control for varying dust resistivity
- Multi-mode operation (constant voltage, constant current, intermittent, pulse)
- Interface:
- LCD/LED display support
- Communication with auxiliary boards (sampling, trigger, feedback)
- Power Supply: Low-voltage DC (typically 24 VDC)
Application:
- Industry Use:
- Coal-fired and biomass power plants
- Cement plants
- Steel mills
- Pulp & paper industry
- Function in ESP Systems:
- Serves as the “brain” of the ESP control cabinet
- Processes feedback signals (voltage, current, temperature, spark)
- Issues control commands to SCR trigger boards and power supply modules
- Ensures stable ESP operation, high dust collection efficiency, and protection against overload or back corona
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