The Woodward 8200-1302 is a marine/hazardous area-specific digital governor of the Woodward 505D series. The following is a detailed introduction to it:
I. Core Functions
Speed and Load Control: Integrated graphical human-machine interface (HMI) for precise speed and load control and safety protection of steam/gas turbines and generator sets.
Automatic Startup Sequence: Supports automatic startup sequences for hot and cold states, and can be connected to temperature signals to optimize the startup curve.
Critical Speed Avoidance: Features three-speed segment critical speed avoidance function to prevent resonance damage to the rotor.
Safety Protection: Provides 10 external alarm inputs and 10 external DI trip inputs, with events timestamped by RTC for easy traceability; equipped with an emergency trip button and loss of power/gas protection logic to reduce safety risks.
Communication and Integration: Standard Modbus interface for connection to DCS/PLC for remote monitoring; supports offline configuration and online calibration, providing configuration, operation, and calibration three working modes.
Hardware Configuration
Power Supply Specifications: Supports 18-36 VDC low-voltage direct current power supply, with a typical working current of 4.3 A.
Input Interfaces:
Speed Input: 2 redundant channels, compatible with magnetic-electric sensors (MPU), eddy current/proximity probes.
Analog Input: 8 channels of 4-20 mA (with loop power supply), configurable with 27 functions (such as temperature, pressure, load feedback).
Switch Input: 20 contact inputs (including 4 default functions: stop, speed up, reset, slow down), 10 external alarms + 10 trip DI.
Output Interfaces: 2 4-20 mA analog outputs, 8 C-type relay contact outputs.
Operation Panel: Graphical panel + keys (including emergency trip key, navigation key, soft keys), 4 status LEDs, supports multiple languages and event timestamp.
Environmental adaptability
Operating temperature: -30℃ to 70℃, storage temperature: -40℃ to 85℃, suitable for harsh environments such as offshore and industrial settings.
Protection level: IP54, certified for ATEX Zone 2 hazardous area, IACS UR E10 marine certification, pollution grade 3.
Application Scenarios
Marine sector: Used for turbine control of main and auxiliary engines, meeting classification society requirements.
Industrial sector: Applicable to gas/steam turbines of offshore platforms, compressors in Zone 2 of petrochemical plants, and speed regulation and protection of small and medium-sized power generation units in power plants.
Core Advantages
Dual certification compatibility: Dual certifications for classification and hazardous area, meeting demanding environmental requirements.
Integrated HMI design: No need for additional operation terminals, reducing integration costs.
High-precision control: Mature control algorithm, high speed regulation accuracy, ensuring stable operation and power supply/drive quality of the units.
Common spare parts: Compatible with original equipment replacement and system upgrades, facilitating maintenance.
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