9908-300
May 26, 2026

9908-300

Woodward 9908‑300 is a classic analog speed governor (2301A series), designed for precise speed regulation of diesel/gas engines, gas turbines and generator sets. It features simple analog adjustment, stable performance, and is widely used in power generation, marine power systems, oil‑gas backup power and industrial prime‑mover control systems.

Description

Core Functions

  1. Dual control modes: isochronous (constant‑speed) for single‑unit operation; droop control for parallel gensets.

  2. Forward‑acting output logic, compatible with standard proportional electric‑hydraulic actuators.

  3. PID closed‑loop control with startup ramp, actuator stroke limit and overspeed protection functions.

  4. Panel‑mount potentiometers for on‑site manual adjustment of speed, gain and stability.

  5. Built‑in anti‑interference design, suitable for long‑term continuous operation in harsh industrial environments.

Electrical Specifications

  • Power Supply: 18–40 VDC (nominal 24 VDC)

  • Speed Input: Magnetic pickup (MPU)

  • Actuator Output: 0–200 mA proportional current output

  • Operating Temperature: −40 °C ~ +85 °C

  • Certifications: CE, Class 1 Div 2 hazardous area compliant

Environmental & Mechanical Features

  • Mounting: Front panel‑mount industrial installation

  • Enclosure: Rugged metal housing, dust‑proof, vibration‑resistant

  • Compact structure, easy for on‑site debugging and maintenance

Typical Applications

  • Speed control for diesel/gas engine‑driven generator sets

  • Marine auxiliary power unit governing systems

  • Oil‑gas industrial backup power control

  • Off‑grid distributed power generation systems


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