Woodward 8273-507

Woodward 8273-507

Product Introduction
The Woodward 8273-507 is a highly advanced, microprocessor-based digital control module belonging to the 2301D-EC series. It is specifically engineered to manage the speed and active load sharing of diesel or gas engine-driven generator sets. Designed for hazardous locations, this module ensures precise frequency control and proportional load distribution among parallel generating units.

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Description

Woodward 8273-507

Technical Specifications

  • Product Series: 2301D-EC Digital Load Sharing and Speed Control (DLSC).
  • Input Voltage: Nominal 24 VDC (Operational range: 18 to 32 VDC).
  • Communication: Integrated Modbus protocol via RS-232 and RS-422 ports.
  • Enclosure Rating: Rated for hazardous locations (e.g., Class I, Div 2).
  • Power Consumption: Maximum 20 Watts.

Functional Features

  • Load Sharing: Actively monitors generator output and adjusts fuel to ensure even load distribution in parallel operations.
  • Speed Control: Supports Isochronous (constant frequency) and Droop (load-dependent frequency) control modes.
  • Software Integration: Utilizes Woodward Watch Window software for configuration, tuning, and real-time monitoring.
  • Hazardous Area Compliance: Built to operate safely in explosive atmospheres without causing ignition.

Application Scenarios
Widely deployed in offshore oil and gas platforms, petrochemical plants, and marine power generation systems where explosive gases or dust are present.

Performance Parameters

  • Operating Temperature: -40°C to +70°C (-40°F to +158°F).
  • Storage Temperature: -40°C to +105°C (-40°F to +221°F).
  • Input Supply Current: Nominal 431 mA (Range: 319.6 mA to 589 mA).

Material Composition
Housed in a rugged, spark-proof sheet metal enclosure designed for hazardous environments. Internal components are mounted on industrial-grade printed circuit boards with protective conformal coatings.

Structural Characteristics
A compact, panel-mounted module featuring a front-panel communication port and status indicators. The enclosure is sealed to prevent the ingress of explosive gases into the internal electronics.

Working Principle
The module continuously samples the engine’s speed via a magnetic pickup and the generator’s electrical output via CTs/PTs. Its microprocessor executes control algorithms to adjust the actuator position, maintaining the desired speed and ensuring the generator shares its proportional share of the total plant load.

Installation Requirements
Must be mounted in a certified hazardous location enclosure. Follow strict grounding and shielding practices for all field wiring to prevent electromagnetic interference. Ensure the 24 VDC power supply is properly fused and regulated.

Usage Precautions

  • Never open the module enclosure in a hazardous area while power is applied.
  • Use only intrinsically safe or properly isolated barriers for field connections.
  • Regularly verify the Modbus communication integrity to prevent data loss.

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