Description
GE WES5302-150 D20/D200 Substation RTU Module
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE / WESDAC |
| Model | WES5302-150 |
| Product Family | WES5302 / D20-D200 |
| Product Type | Modular substation RTU hardware |
| System | GE D20 / D200 |
| Primary Application | Substation automation |
| System Function | RTU control, data acquisition and field-device interface |
| Architecture | Modular rack-based |
| Communication | Dependent on D20/D200 system configuration |
| SCADA Integration | Supported through the D20/D200 platform |
| Protocol Support | Configuration-dependent |
| Mounting | D20/D200 rack |
| Power Requirements | Verify exact -150 hardware documentation |
| I/O Capacity | Not confirmed for this exact variant |
| Operating Temperature | Verify exact hardware revision |
| Dimensions | Verify from equipment documentation |
The D20/ platform is documented as a substation controller architecture capable of data concentration, protocol conversion, local automation, user-programmable logic, and communication with IEDs and SCADA systems.
Product Introduction
The GE WES5302-150 belongs to the legacy WESDAC D20/ substation automation ecosystem, a modular RTU platform designed for collecting information from substation devices, executing control functions, and communicating information to supervisory systems. D20/ architectures can function as data concentrators, protocol converters, and local automation platforms, with support for IED communications and SCADA interfaces.
The exact role of the WES5302-150 needs to be confirmed against the installed D20/ rack documentation. Available commercial records variously describe it as a field controller main unit, control module, digital interface, and power-supply module. Those descriptions are not sufficiently consistent to justify assigning specific voltage, channel-count, or I/O specifications to the -150 variant without the original hardware documentation.
WES5302-150
Application Scenarios & Field Pitfalls — Engineer’s Perspective
The WES5302 family is relevant to electrical substation RTU and SCADA installations, where a D20/ controller gathers status and measurement information from protection relays, meters, breakers, and other intelligent electrical devices. The platform can also perform protocol conversion and local automation functions such as voltage control, capacitor-bank control, feeder automation, interlocking, and automatic restoration.
Engineering considerations
- Identify the exact module function before replacement. Do not assume WES5302-150 is a power supply or digital I/O card simply because one supplier uses that description.
- Verify the D20/ rack position. The installed slot and neighboring modules can provide useful evidence of the module’s actual function.
- Check the complete part number. WES5302-150 and -111 are different variants and should not be treated as direct substitutes without documentation and wiring verification.
- Preserve the RTU configuration. D20/ installations can contain application logic, protocol mappings, IED definitions, point databases, and SCADA mappings that are independent of the physical replacement.
- Verify communications after replacement. A healthy module does not guarantee correct communication with protection relays, meters, or the SCADA master.
- Check firmware/software compatibility. Legacy D20/ systems can have tightly coupled hardware and software revisions.
- Confirm power requirements from the cabinet documentation. Public listings disagree on the electrical role of the -150 variant, so the installed system documentation should take precedence.
Related Products
- — Closely related variant; do not assume electrical or functional interchangeabith .
- GE WESDAC D20 C — D20 communication/controller hardware used within the broader WESDAC architecture.
- GE WESDAC D20 PS — D20 power-supply hardware; useful for distinguishing dedicated rack power hardware from other modules.
- GE D20ME / D20ME-VME — D20 communication and memory-related hardware for the WESDAC platform.
- GE WESCOM VME — VME-based controller hardware used in larger substation automation architectures.
- GE WES5120 — Another legacy WES-series field-controller family encountered in substation automation applications.
- GE Multilin D20/ — The broader substation RTU platform supporting data concentration, protocol conversion, SCADA communication, and local automation.
Procurement Note
For , I would not publish a definitive voltage, channel count, or “power supply” designation until the exact hardware revision is confirmed. The D20//WESDAC system identification is well supported, but the board-level function of the -150 variant is inconsistently described across available records.
