8271-674
May 26, 2026

8271-674

WOODWARD 8271‑674 is a PG‑PL series analog electronic speed governor produced by Woodward, USA. It is applied to speed and load control of diesel engines, gas engines and small turbines. Adopting closed‑loop regulation technology, it supports isochronous and droop control modes for single‑unit or parallel‑running generator sets. Widely used in power generation, marine, oil & gas, mining and industrial power systems.

Description

Basic Parameters

  • Brand: WOODWARD (USA Original)

  • Model: 8271‑674

  • Type: PG‑PL Analog Speed Governor

  • Power Supply: 20–40 VDC

  • Speed Input: 1–30 VAC RMS (magnetic pickup signal)

  • Output Signal: 0–200 mA (for driving fuel actuators)

  • Operating Temperature: −40 °C ~ +70 °C

  • Humidity: ≤95% non‑condensing

  • Speed Regulation Accuracy: ±0.25%

  • Protection: Reverse polarity, surge protection

  • Mounting: Panel‑mount / DIN‑rail mount

Main Functions

  1. Isochronous & droop control for genset parallel operation and load sharing

  2. On‑site adjustment by internal potentiometers, no software required

  3. Fast response to sudden load changes

  4. Compatible with Woodward rotary actuators and speed sensors

  5. Supports DCS/PLC remote monitoring and control

  6. Interlocks with overspeed protection for emergency shutdown

Advantages

  1. Rugged industrial‑grade design suitable for harsh environments

  2. Simple wiring, easy installation and on‑site calibration

  3. High‑reliability analog circuit with stable long‑term performance

  4. Applicable for new‑build and retrofit power unit projects

  5. Strong anti‑interference for marine and heavy‑duty industrial applications


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