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Turbomachinery power plant success

This Korean power plant successfully upgraded its turbomachinery equipment despite its remote location, limited local skilled resources and readily-available installation materials. As a result, it has achieved improved reliability, a simplified operating interface and adherence to regulations, all while providing a stable power supply to its customers.
See how we modernized this Power Plant
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Our Turbomachinery Control Solutions
Turbine, generator, compressor, and drive solutions as well as mechanical retrofit capabilities and a comprehensive set of services that allow us to deliver the full value to our customers.

TMC solutions and services

Schneider Electric offers a comprehensive suite of flexible TMC solutions and services. Over four decades, our global experts have enhanced oil and gas operations of all sizes with TriconexTM critical control platforms, and general purpose redundant and simplex ModiconTM platforms.
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Solution features

> Surge control - to protect compressors from surging, we integrate advanced algorithms with complementary process automation strategies
> Compressor performance control - to meet process demands while maintaining operational limits, we offer efficient loading control
> Decoupling control - to balance performance and surge control for optimal efficiency, we provide excellent decoupling control
> Steam and gas turbine control; motor driver control - to provide seamless steam header control and machinery protection, we offer exceptional integrated controls


> Reduce Critical Compressor inefficiencies and poor performance
> Lowers risk of process disruption
> Reduces risk of catastrophic compressor failures
> Easy to follow control logic with intermediate results available in real-time

Boost safety and efficiency

With solutions and services for the fossil, hydro, and nuclear power market, Schneider Electric addresses all power configurations and needs for small to large reheat turbines. With more than four decades of experience, we have developed control solutions for general purpose and critical applications to boost safety and efficiency.
See how we modernized this Power Plant

Solution features

> Generator Controls - control for megawatt, speed droop, isochronous, voltage, power factor and MegaVar. We also offer over-temperature limiting, excitation limiting, load sharing, and load shedding.
> Automatic Voltage Regulation (AVR) - AVR solutions include voltage and current control, voltage matching with “soft start,” and bus voltage matching for synchronizing.
> Steam and Gas Turbine Control - Integrated sequences and controls provide seamless steam header control and machinery protection for generators. We also provide control strategies for reheat steam turbines.


> Protects critical assets from operation interruption and damage 
> Enhances productivity and lifecycle of critical assets such as steam turbines and generators
> Enables performance monitoring
> Enables improved Asset Management
> Enables high-speed event recording

TMC Retrofitting

TMC retrofits eliminate mystery boxes and outdated mechanical components. TriconexTM safety systems ensures 2oo3 voting for all trip inputs, electronic over-speed protection, online testing and repair, no single point of failure, and full instrumentation for automatic testing, and continuous diagnostics.
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Solution features

Schneider Electric mechanical retrofit capabilities focus on actuators, power units, probes and other physical components that deliver reliable, fault-tolerant performance. The solutions include :

> Trip Block Assemblies (Quadvoter): fault-tolerant, online serviceable and SIL-rated speed indication: active and passive speed probes receive the speed of the turbine and brackets
> Custom hydraulic power units (HPU) retrofits: designed for high- or low-pressure hydraulic solutions 

> TMR servos

> Pneumatic actuator retrofits 

> Custom LVDT brackets for redundant and triple-redundant valve position feedback and control
> Thrust probes and brackets


> Reduces installation time through strategic use of laser scanning and other advanced reverse engineering methods
> Increases response and precision through high pressure actuators and servo valves
> Simplifies maintenance through the elimination of OEM components
> Increases service life and smoother operation with separation of lubricating oil and control oil
> Improves redundancy with duplication or triplication of system components
> More precise control — high pressure servos and actuators provide excellent resolution with significantly lower hydraulic fluid flow providing increased speed and accuracy for control

Engineering services for TMC

Leveraging decades of turbomachinery control (TMC) success, Schneider Electric acts as an independent consultant for TMC projects. Access our full spectrum of engineering services — from specification development, hardware/software design and procurement to installation, testing, commissioning and training.
See how we modernized this Power Plant
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Our Services

> Front-end engineering design (FEED) – keep project expenses in check via pre-project planning, front-end loading, and feasibility analysis
> TMC engineering assessments – expert assessments including reliability improvement, controls analysis, and field instrumentation
> Commissioning and startup support – ensure that all TMC systems and components are designed, installed and tested according to your operational requirements

Featured products and software opens in new window


EcoStruxure™ Triconex Safety Systems


EcoStruxure™ Foxboro DCS


PLC, PAC and Dedicated Controllers


Human Machine Interfaces (HMI)


Vijeo Designer


SimSci simulation

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