WESTINGHOUSE 1C31107G01

Description

Product Overview

The WESTINGHOUSE 1C31107G01 is a critical power supply module designed for Westinghouse’s WDPF (Westinghouse Distributed Processing Family) and the successor Emerson Ovation distributed control systems (DCS) used primarily in the power generation industry. This module functions as a system power supply, providing clean, regulated DC power to the controller, I/O modules, and associated electronics within a DCS cabinet or “drop.” The reliable operation of the entire control node depends on the stable output of the WESTINGHOUSE 1C31107G01.

Key Product Parameters

• Product Type: System DC Power Supply Module

• Compatible System: Westinghouse WDPF / Emerson Ovation DCS

• Input Voltage: Typically accepts a wide-range AC input (e.g., 120/240 VAC, 50/60 Hz) commonly found in power plant control rooms.

• Output Voltage: Provides one or more regulated DC output voltages, such as +5 VDC for logic and ±12 VDC or ±15 VDC for analog circuits. May also provide +24 VDC for field I/O.

• Output Current: Rated for a specific amperage to power a fully populated local controller or I/O chassis.

• Mounting: Designed to mount within a dedicated slot in a WDPF/Ovation Q-Line or similar system cabinet.

• Redundancy: Often configured in N+1 redundant pairs to ensure high availability for critical control functions.

• Protections: Includes overcurrent, overvoltage, and overtemperature protection.

• Indicators: Features front-panel LEDs for status (Power On, Fault).

Advantages and Core Features

The primary advantage of the WESTINGHOUSE 1C31107G01 is its specialized design for mission-critical, 24/7 operation in power plant environments. It is engineered for high reliability, excellent voltage regulation, and low noise output, which is essential for the accurate operation of sensitive analog input cards and processor logic. Its integration within the proprietary WDPF/Ovation cabinet architecture ensures perfect mechanical and electrical compatibility, simplifying system design and maintenance. The robust construction of the 1C31107G01 allows it to withstand the electrical transients and long service life expected in generation facilities.

Application Scenarios

This power supply is a foundational component in power generation control systems:

• Fossil Fuel Power Plants: Powering WDPF/Ovation controllers for boiler control, turbine control, and burner management systems in coal or gas-fired units.

• Nuclear Power Plants (Non-Safety Related): Providing power to control systems for turbine islands, feedwater control, and balance-of-plant systems.

• Combined Cycle Power Plants: Energizing control drops for gas turbines, steam turbines, and Heat Recovery Steam Generators (HRSGs).

• Legacy Plant Retrofits: Serving as a direct replacement part in existing WDPF systems to extend operational life.

Comparison with Competing Products

During its era, this module competed with system power supplies from other DCS vendors like Bailey (INFI 90), Honeywell (TDC 3000), and Foxboro. Its key differentiator was its seamless integration and validation within the WDPF/Ovation hardware platform. Compared to modern, modular DIN-rail power supplies, the WESTINGHOUSE 1C31107G01 represents a centralized, high-power, system-level approach. It is a proprietary component, whereas modern designs often use commercial off-the-shelf (COTS) power supplies. Its value today lies in its role as a legacy spare part with guaranteed compatibility.

Selection Guide and Important Notes

Selection of the WESTINGHOUSE 1C31107G01 is almost exclusively for direct replacement in an existing WDPF or early Ovation system. It is not selected for new greenfield projects.

Important Precautions:

• Legacy/Obsolete Part: This is a discontinued component. Sourcing is limited to specialized industrial surplus or refurbishment channels.

• Exact Replacement Imperative: The module must be an exact part number match. Different revisions or suffixes may indicate critical differences in output voltages, connectors, or performance that could damage the system.

• Redundancy Configuration: If replacing a module in a redundant pair, follow strict procedures for hot-swapping (if supported) or ensure a controlled shutdown is performed. Verify the redundancy logic after replacement.

• Load Verification: Before replacement, ensure there have been no unauthorized additions to the cabinet that would cause the load to exceed the 1C31107G01‘s rated capacity.

• Professional Handling: These modules contain sensitive electronics. Use proper ESD (electrostatic discharge) precautions during handling and installation.

• Migration Planning: For long-term support, plants should develop a migration strategy to modern Emerson Ovation or other contemporary DCS hardware.

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