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The ABB Bailey SPTPS13 is a multifunction turbine speed detection and protection module for the Symphony Plus Harmony Rack control platform. It combines functions previously handled by three separate module types: SPTPS02, SPFCS01 and SPTSA01. This consolidation allows compatible turbine control installations to retain their existing system architecture while using one module family for several related applications.
The SPTPS13 is used in turbine control systems where speed monitoring and protective responses must be handled independently of routine plant control. In a steam turbine installation, for example, an overspeed condition can require a rapid protective response to prevent the turbine from accelerating beyond its permitted operating range. Depending on the configured operating mode, the module can support overspeed protection, turbine trip, electro-hydraulic control protection and power-load imbalance functions.
A key feature of the SPTPS13 is its use of interchangeable application adapter boards. The TPS, FCS and TSA adapters configure the module for the corresponding legacy application and determine the applicable I/O channel mapping. This makes the exact module configuration important during replacement: installing the correct SPTPS13 without the appropriate adapter and termination arrangement may not reproduce the intended application.
The module interfaces with compatible Harmony Rack termination units, including TPTU02, NTDI01 and NTDI02, depending on the selected function. In TPS mode, three SPTPS13 modules can connect to one TPTU02 termination unit through standard NKTU01 cables, supporting a triple-modular-redundant protection arrangement.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB Bailey |
| Model / Part Number | SPTPS13 |
| Product Family | Symphony Plus Harmony Rack |
| Product Type | Turbine Protection Module |
| Primary Functions | Turbine speed detection and protection |
| Supported Application Modes | TPS, FCS and TSA |
| Application Adapter Boards | TPS, FCS and TSA |
| Compatible Termination Units | TPTU02, NTDI01 and NTDI02, depending on application |
| TPS Mode Configuration | Three modules connected to one TPTU02 |
| Redundancy in TPS Mode | Triple modular redundancy |
| Legacy Module Replacements | SPTPS02, SPFCS01 and SPTSA01 |
| Supported TPS Function Codes | FC 145, FC 79, FC 83 and FC 84 |
| Supported FCS Function Code | FC 145 |
| Supported TSA Function Code | FC 103 |
| Dimensions | 350 × 25 × 150 mm |
| Weight | 0.33 kg |
The SPTPS13 receives turbine-related input signals through its configured termination and adapter arrangement. Its onboard processor evaluates the incoming data against the configured protection functions and initiates the corresponding output response when a qualifying condition occurs.
In TPS mode, the module participates in a dedicated turbine protection arrangement. Three SPTPS13 modules connect to a TPTU02 termination unit, and the protection logic uses a two-out-of-three voting arrangement for applicable protective functions. This allows the system to evaluate redundant inputs and determine whether a protective action should be initiated without relying on the normal Symphony Plus controller or data highways for the time-critical protection decision.
The module can support several distinct responses. Overspeed protection can initiate action intended to control an overspeed event, while the turbine trip function can operate the shutdown arrangement. Electro-hydraulic control protection addresses the relevant hydraulic control system, and power-load imbalance monitoring compares electrical output with the turbine’s mechanical load input to anticipate certain overspeed conditions.
The operating behavior depends on the installed adapter board, configured function code, termination unit and associated protective equipment. During a replacement, these elements must be checked together to ensure that the new module reproduces the required protection logic and signal mapping.
The SPTPS13 operates at the turbine protection layer of the Harmony Rack architecture. It processes turbine-related signals and supports protective outputs through the configured termination unit, while the broader control system handles normal plant monitoring and control functions.
Turbine Speed and Process Signals → Compatible Termination Unit → SPTPS13 Protection Logic → Protective Output Circuit → Turbine Valve or Shutdown Mechanism
| System Component | Function | Relationship to the SPTPS13 |
|---|---|---|
| SPTPS13 Turbine Protection Module | Evaluates turbine-related inputs and executes configured protection functions | Performs the assigned speed detection and protection tasks |
| TPTU02 Termination Unit | Provides the termination and relay interface for the applicable TPS configuration | Connects the SPTPS13 modules to the relevant input and output circuits |
| NTDI01 / NTDI02 Termination Units | Provide compatible termination arrangements for supported applications | Interface with the module according to the selected configuration |
| TPS Adapter Board | Configures the module for turbine protection applications | Establishes the TPS operating mode and associated I/O mapping |
| FCS Adapter Board | Configures the module for the corresponding legacy application | Supports the SPFCS01 replacement arrangement |
| TSA Adapter Board | Configures the module for the corresponding legacy application | Supports the SPTSA01 replacement arrangement |
| NKTU01 Cable | Connects modules to the TPTU02 termination unit in the specified TPS arrangement | Carries the required module-to-termination connections |
| Turbine Speed Sensors | Supply turbine speed information | Provide input data used by the configured protection functions |
| Protective Relays and Hydraulic Manifold | Execute protective actions on the turbine | Respond to outputs generated through the configured protection circuit |
| Symphony Plus Control System | Handles broader plant control and monitoring | Integrates the turbine subsystem into the overall automation environment |
| Application | Typical Equipment | Role of the SPTPS13 |
|---|---|---|
| Steam Turbine Protection | Steam turbines in power generation plants | Supports speed monitoring and configured turbine protection functions |
| Gas Turbine Control | Industrial gas turbine installations | Processes turbine-related signals for the applicable protection arrangement |
| Hydro Turbine Protection | Hydroelectric generating equipment | Supports protection functions appropriate to the configured application |
| Turbine Overspeed Protection | Turbine speed sensing and trip circuits | Evaluates speed-related inputs and initiates configured protective responses |
| Electro-Hydraulic Control Protection | Hydraulic turbine valve control systems | Supports the EHC protection function in applicable configurations |
| Power Generation Control | Generator and turbine control systems | Supports power-load imbalance monitoring where configured |
| Legacy Harmony Rack Modernization | Existing SPTPS02, SPFCS01 or SPTSA01 installations | Consolidates compatible legacy applications into the SPTPS13 module family |
| Distributed Control System Integration | Symphony Plus Harmony Rack installations | Connects turbine-specific protection functions with the broader plant control architecture |
| Component | Function | Compatibility Consideration |
|---|---|---|
| ABB Bailey SPTPS02 | Earlier turbine protection module | Legacy application that SPTPS13 can replace in a compatible configuration |
| ABB Bailey SPFCS01 | Earlier turbine-related control module | Requires the corresponding FCS application configuration and adapter |
| ABB Bailey SPTSA01 | Earlier turbine synchronization-related module | Requires the corresponding TSA application configuration and adapter |
| ABB Bailey TPTU02 | Turbine protection termination unit | Used with SPTPS13 in the specified TPS arrangement |
| ABB Bailey NTDI01 | Termination unit | Supported for applicable SPTPS13 configurations |
| ABB Bailey NTDI02 | Termination unit | Supported for applicable SPTPS13 configurations |
| ABB Bailey NKTU01 | Module-to-termination cable | Used to connect SPTPS13 modules to TPTU02 in TPS mode |
| TPS Adapter Board | Application adapter | Configures the module for the TPS operating mode |
| FCS Adapter Board | Application adapter | Configures the module for the FCS operating mode |
| TSA Adapter Board | Application adapter | Configures the module for the TSA operating mode |
| Turbine Speed Sensors | Detect turbine rotational speed | Must match the configured input and termination arrangement |
| Turbine Protective Relays | Operate the designated protective circuits | Must match the installed trip and protection architecture |
| Model / Product | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| ABB Bailey SPTPS02 | Turbine Protection Module | Legacy module replaced by SPTPS13 in compatible applications | Verify the original TPS function code and termination arrangement |
| ABB Bailey SPFCS01 | Turbine Control Module | Legacy module consolidated into the SPTPS13 family | Confirm the FCS application and required adapter |
| ABB Bailey SPTSA01 | Turbine Synchronization Module | Legacy module consolidated into the SPTPS13 family | Confirm the TSA application and function code |
| ABB Bailey TPTU02 | Turbine Protection Termination Unit | Compatible termination unit for TPS mode | Verify the existing relay and module connection arrangement |
| ABB Bailey NTDI01 | Termination Unit | Supported termination option for applicable configurations | Match the termination unit to the intended application |
| ABB Bailey NTDI02 | Termination Unit | Supported termination option for applicable configurations | Verify signal and interface requirements |
| ABB Bailey NKTU01 | Module-to-Termination Cable | Used in the specified TPS module arrangement | Check cable routing and the three-module configuration |
The SPTPS13 supports three application modes using the TPS, FCS and TSA adapter boards. Each adapter establishes the relevant operating mode and I/O mapping, so the original module function and associated termination arrangement must be identified before replacement.
The specified TPS arrangement uses three modules connected to one TPTU02 termination unit. This supports triple-modular redundancy and two-out-of-three voting for applicable protective functions, allowing the protection logic to evaluate redundant inputs before initiating a protective action.
The supported termination arrangement depends on the selected application. TPTU02 is used in the specified TPS configuration, while NTDI01 and NTDI02 are supported for applicable configurations. The adapter, function code and existing wiring must be checked together.
Verify the installed adapter, configured function code, input mapping, termination connections and protective output circuits. Functional testing should cover the protection functions used by the actual turbine application, following the plant’s approved commissioning and safety procedures.