Description

Product Overview

The 8273-501 is a legacy panel-mount Woodward 505 / 505E digital turbine governor, built for single-valve steam turbines, also supporting extraction / admission and split-range actuator arrangements. It integrates speed governing, load control, valve position limiting, alarm and trip logic, and comes with a local operator panel with LCD and keypad for on-site tuning and status viewing. It interfaces with magnetic speed pickups, 4–20 mA analog signals, discrete trip contacts and hydraulic/electrical actuators. Widely stocked as replacement spare on small steam turbines in power plants, refineries and chemical facilities.

Technical Specifications

• Brand: Woodward
• Model: 8273-501 (505 / 505E)
• Warranty: One Year
• Condition: 100% New & Original
• Power Input: 18–40 VDC
• Operating Temp: 0°C to +60°C
• Speed Input: Magnetic pickup, 90–3600 rpm, 100–20000 Hz
• Analog I/O: Configurable 4–20 mA analog inputs and outputs for valve demand, process signals
• Discrete I/O: 8 configurable digital inputs; 4 relay discrete outputs for alarm, trip and status
• Communication: RS‑232, RS‑422, Modbus; setup via 505View software
• Mounting: Panel cutout mounting
• Features: Speed control, load control, cascade control, over-speed protection, load rejection logic
• Origin: USA
• Certifications: CE
• Lifecycle: Obsolete legacy spare; successor series: 505XT (8200‑13xx)