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8200-1302
8200-1302
8200-1302

Woodward 8200-1302 505D Digital Governor / Turbine Control Unit

  • Model: 8200-1302
  • Brand: Woodward, Inc.
  • Series: 505 / 505D Digital Control Series
  • Core Function: Microprocessor-based governor designed to control industrial steam turbines driving generators, pumps, or compressors with single or dual extraction/admission valves.
  • Product Type: Steam Turbine Digital Controller & Governor Unit
  • Key Specs: High-Voltage AC/DC Power Supply | Dual Speed MPU Inputs | Integrated Keypad & Display Panel | Conformal Coated Electronics
  • Condition: New Original / New Surplus (Zero usage, uninstalled OEM stock)
  • Inventory Status: High-Demand Prime Mover Controller — Crucial spare stock to maintain continuous power generation and critical mechanical drive applications.
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Description

3. Key Technical Specifications

The Woodward 8200-1302 (505/505D series) provides comprehensive speed, load, and system control for steam turbines using field-configurable control algorithms, dual speed sensor inputs, and customizable I/O options.

Parameter Value
Part Number 8200-1302
Manufacturer Woodward, Inc.
Control Family 505 Series Digital Steam Turbine Governor
Input Power High Voltage (88–132 VAC / 90–150 VDC nominal)
Speed Inputs 2 Magnetic Pickup Units (MPU) or Proximity Switches (1–15,000 Hz)
Analog Inputs / Outputs 4 Programmable 4–20 mA Inputs / 8 Relay Outputs / 4 Analog Outputs
Communications Modbus RTU / Modbus TCP via RS-232, RS-422, RS-485, and Ethernet
Operating Temperature -25°C to +65°C
Enclosure Rating NEMA 4X Front Panel (when bulkhead or panel mounted)

4. Product Introduction & Supply Chain Strategy

The Woodward 8200-1302 digital governor regulates steam turbine operation by processing speed, extraction pressure, and load parameters to drive electro-hydraulic actuators. It manages startup sequences, speed control (isochronous or droop), overspeed trip protection logic, and critical valve positioning.

Keeping an uninstalled Woodward 8200-1302 controller in New Surplus reserve is a critical strategy for power plants and industrial facilities. Turbine trips caused by control unit failure can bring an entire production process to an immediate standstill. Staging a factory-sealed unit ensures zero component thermal stress, intact firmware integrity, and immediate drop-in replacement without requiring mechanical panel modifications.

8200-1302

8200-1302

8200-1302

8200-1302

5. Installation & Configuration Guide

High Voltage & Turbine Overspeed Danger

Turbine control installation involves high electrical voltages and hazardous rotational speeds. Always lock out steam supply valves and ensure independent mechanical overspeed trip mechanisms are operational before powering or testing the 8200-1302 unit.

1

Steam Isolation & System De-energization

Prerequisite

1.Steam Isolation & System De-energization:Prerequisite.

Isolate steam admission valves and engage mechanical trip latches. Disconnect main power feeds to the existing controller panel.

2

Panel Cutout & Sealing

Mechanical Mounting

2.Panel Cutout & Sealing:Mechanical Mounting.

Insert the 8200-1302 unit into the enclosure cutout, ensuring the NEMA 4X front gasket creates a watertight seal against the panel face. Tighten rear mounting clamps evenly.

3

Signal & Power Landing

Field Wiring

3.Signal & Power Landing:Field Wiring.

Land power, actuator output lines, and dual speed MPU shielded cables onto designated screw terminal blocks. Maintain proper shielding to prevent signal noise on speed sensing lines.

4

Firmware Verification & Dry Run

Commissioning

4.Firmware Verification & Dry Run:Commissioning.

Apply control power and verify configuration settings via the front display or Control Assistant software. Perform complete valve stroke and speed loop simulated testing prior to introduction of steam.

6. Firmware/Software Versions & Upgrade Notes

  • Configuration Tool: Fully configurable using the front keypad/display or via Woodward Control Assistant software.
  • Redundancy & Communication: Features dual Ethernet ports and serial communication ports for seamless integration with plant DCS systems via Modbus.
  • Conformal Coating: Standard on 8200-1302 modules to protect sensitive microprocessor circuits from airborne contaminants and sulfur-rich industrial atmospheres.

7. Frequently Asked Questions (FAQ)

Q: Is this Woodward 8200-1302 governor genuinely new? A: Yes, this item is a Brand New Surplus unit. It has never been mounted on a control panel or connected to field actuators, and is preserved in protective OEM packaging.

Q: Why select New Surplus over a refurbished governor unit? A: Industrial steam turbine controls operate under high vibration and thermal cycling. Refurbished units carry higher risk of aged power supply electrolytic capacitors and degraded keypad membranes. New Surplus provides full factory reliability.

Q: Can the 8200-1302 handle dual-extraction steam turbines? A: Yes, depending on application software configuration, 505 series controls support single or dual actuator/valve control configurations for extraction/admission steam turbines.

Q: What warranty accompanies this unit? A: Every Woodward 8200-1302 unit comes with a full 1-year replacement warranty and a certified quality inspection report prior to shipment.

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