8271-652
May 26, 2026

8271-652

WOODWARD 8271‑652 is a PG‑PL series analog electronic speed governor manufactured by Woodward, USA. It is designed for speed and load control of diesel engines, gas engines and small‑size turbines. With closed‑loop speed regulation, it supports isochronous and droop control for single‑unit or parallel‑running generator sets. It is widely used in power generation, marine, oil & gas, mining and industrial power units.

Description

Basic Specifications

  • Brand: WOODWARD (USA Original)

  • Model: 8271‑652

  • Series: PG‑PL Analog Speed Governor Controller

  • Power Supply: 20–40 VDC

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

  • Control Output: 0–200 mA (for driving electric actuators)

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

  • Relative Humidity: ≤95% non‑condensing

  • Speed Regulation Accuracy: ±0.25% of rated speed

  • Protection: Reverse‑polarity protection, surge protection

  • Mounting: Panel‑mount / DIN‑rail mount

Main Functions

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

  2. On‑site adjustment via built‑in potentiometers, no software programming required

  3. Fast dynamic response to sudden load changes

  4. Compatible with Woodward rotary actuators and magnetic speed sensors

  5. Supports DCS/PLC remote monitoring and control

  6. Cooperates with overspeed protection systems for emergency shutdown

Product Advantages

  1. Rugged industrial‑grade design for harsh working environments

  2. Compact structure, simple wiring, easy installation and maintenance

  3. Mature analog control circuit with high reliability and long service life

  4. Suitable for new‑build and old‑system retrofit projects

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


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