Category: ABB

State-of-the-art turbine control system

To achieve maximum availability and reliability,the turbine control makes use of a redundant,

fault – tolerant and fail-safe architecture with a master/slave configuration for closed loop

control and up to two-out of-three voting for turbine protection.

Competence in Mechanics and Hydraulics

The ambient conditions within gas turbines require highly demands to the surrounding

equipment. Therefore we supply our customers only with well proven devices improving 

the reli ability of the system.

Our solutions, whether electrical servodrive, low pressure hydraulic or highpressure hydraulic

with their own oil supply up to 200 bar can be integrated in almost all mechanical systems.

Integration as a major task in system configuration

• Multiple available ABB hardware platforms allows an optimized integration into existing

installations of the overall plant DCS (common modules, common tools, common op

erator station, common spare parts, …).

• ABB – ONE partner for all your needs, gives you the possibility that all interfaces, either

for the mechanics or electronics will be seamless integrated and fit together as one

– with no extra efforts for our customers.

ABB can offer the complete range of equip

ment for retrofit:

• installation of a new Egatrol® turbine control operating and monitoring system, incl.

automatic start up and shut down sequence

• substitute of old and obsolete control equipment by electronic speed governor of

fering fully automatic operation of the turbine

• substitute of mechanical /hydraulic protection system

• implementation of electronic governorprotection, temperature-, load & frequency control

• implementation of state of the art machinery supervision system with diagnostic capabilities

• implementation of dual fuel capabilities

• renewing of electrical devices like Generator Protection, AVR, Synchronizing device etc.

• installation of a unit control system

• complete services: site assessment including feasibility studies, design, engineering,

installation and commissioning.

With the Egatrol®  gas turbine control & protection system ABB has developed a modular

package that can be combined to any tailormade solution reflecting the status of the current

equipment and the required performance of the gas turbine:

• handle peak load demands

• handle primary frequency control

• fast loading / unloading transients

• island operation

• minimized start-up time

Increase profitability

Considering the advantages that can be obtained by retrofitting there is no need to wait

until the first trouble occurs by obsolete equipment:

• meet requirements for UCTE-market

• produce power for the spot market

• sell your power for the best price

• reduce maintenance efforts

• enhance reliability and availability

• lengthen the lifetime cycle of the turbine to a maximum

• enable the efficient and smooth operation of the gas turbine at different operating conditions

• avoid major and expensive damages of the system Reducing the mechanical work on a minimum is

not only a matter of  investment costs.

The main advantage of this solution will be short time for the installation and return on investment (ROI).

In this way our customers have the opportunity to deliver energy at higher quality and less costs

in an surprisingly short time frame.

Competence in Mechanics and Hydraulics

The ambient conditions within gas turbines require highly demands to the surrounding

equipment. Therefore we supply our customers only with well proven devices improving 

the reli ability of the system.

Our solutions, whether electrical servodrive, low pressure hydraulic or highpressure hydraulic

with their own oil supply up to 200 bar can be integrated in almost all mechanical systems.

• ABB – ONE partner for all your needs, gives you the possibility that all interfaces, either

for the mechanics or electronics will be seamless integrated and fit together as one

– with no extra efforts for our customers.

The main advantage of this solution will be short time for the installation and return on investment (ROI).

In this way our customers have the opportunity to deliver energy at higher quality and less costs

in an surprisingly short time frame.

Based on experience

ABB can draw on more than 40 years of experience in developing, manufacturing, sup plying

and managing control systems for turbines and power plants with more than 1200 turbine

control installations worldwide.

A changing market

In a rapidly changing market driven by de-regulation and

globalization, more and more customers are looking into

cost-efficient upgrades increasing the lifecycle of their

capital equipment and meeting more challenging

requirements towards performance, maneuverability and

availability.

ABB´s solution, our customer´s benefit

The Egatrol® concept for retrofitting power plants is a tai

lor-made solution, utilizing electrical and mechanical

components as well as products of the

ABB control system. It ensures a state-of-the-art turbine

control system well integrated into the overall plant.

Situation

Due to the phased out of I&C equipment or the

wear of mechanical parts, older combustion

turbine sets often show a lack of reliability and

availability, whilst the major turbine and

generator components are still offering a

substantial remaining lifetime. Often obsolete

old control and protection system don´t allow to

fulfil the high demands on quality and proper

operation within the power network. Therefore

old combustion turbines run on base load for low

prices, but with over proportional high costs for

operation and maintenance.

Features and benefits

• Digital input for 2-wire field devices (NAMUR proximity switches and contacts according to EN

60947-5-6)

• Can be used in hazardous areas providing IS signals up to Zone 0

• Channel to channel galvanic isolation

• Configurable software signal filter 0…100 ms

• Protected against wrong wiring

• Diagnostics:

– Loop supervision (open circuit and short circuit)

– Hardware error supervision

– Communication supervision

– Internal power supervision

• Sequence of Events (SoE)

• DIS850 supports both Normally Open (NO) and Normally Closed (NC) 24 V loops

• Single loop granularity – each SCM handles a single channel

• Supports hot swap

• Mechanical locking slider which turns off field device power and/or output before removal

• Field disconnect function which can galvanically separate the field loop wiring from the SCM during

commissioning and maintenance

• All SCMs have electronic current limitation

• Mechanical keying to prevent insertion of wrong module type after commissioning

• 24V DC powered through Modulebus

• Configurable through parameters

• LED indicators on the SCM indicate the operational state of the module

Select I/O is an Ethernet networked, single-channel granular I/O

system for the ABB Ability™ System 800xA automation platform.

Select I/O helps decouple project tasks, minimizes the impact of

late changes, and supports standardization of I/O cabinetry

ensuring automation projects are delivered on time and under

budget. A Signal Conditioning Module (SCM) performs the

necessary signal conditioning and powering of the connected field

device for one I/O channel.

The DIS850 is a Digital Input Signal Conditioning Module for use in

intrinsically safe applications (Zone 0) supporting 2-wire NAMUR

field devices with Sequence of Events (SOE).

The ACS2000 is designed for high reliability, easy installation and fast

commissioning, reducing the totalcost of ownership.

With the integration of an Active Front End (AFE) combined

with multilevel control, the ACS2000 is an Ultra Low Harmonic

(ULH) design that minimizes line side harmonics without the

use of expensive, specialized transformers with the added

benefit of a smaller overall package.

With its compact packaging, the ACS2000 can be retrofitted

to control standard induction motors via a direct connection

to the line supply (direct-to-line). Alternatively, a simple two

winding input isolation transformer can be applied to allow for

connection to various line side supply voltages.

The ACS2000 direct-to-line configuration combines the cost

savings of a transformer-less variable speed drive system with

the benefits of Voltage Source Inverters (VSIs), including

excellent availability and reliability, high and constant power

factor and superior dynamic control performance.

The heritage of ABB’s VSI topology, along with a patented HV

IGBT-based multi-level control, provides a proven track record

for reliable and motor friendly medium voltage AC drive

performance. When your processes run more

Key product features

• Suitable for use with or without an input isolation transformer

• Meets IEEE 519 and IEC 61000-2-4

• Direct-to-line configuration (transformer-less) allows 3 in

and 3 out power cabling for quick and easy installation

• Multi-level switching topology and built-in dV/dt filtering

enables use with new or existing induction motors

• Regenerative option and ability to maintain near unity power

factor across the entire speed range provides additional energy savings

• Modular construction provides high reliability and low

maintenance costs

• Configurable disconnect option package for a flexible, self

contained switchgear solution

 Features and benefits

 • Supports Ethernet/IP and Device Net protocols

 • Support 6 redundant pairs of CI873A from 5.1 FP4

The CI873A is an AC 800M communication interface that connects to

 external Ethernet devices using the EtherNet/IP protocol. The TP867

 Baseplate has two RJ45 Ethernet connectors, but only the CH1

 connector that supports 100Mbps is used. The CI873 expansion unit

 contains the CEX-Bus logic, a communication unit, and a DC/DC

 converter that supplies the required voltage from +24 V supply

 through the CEX-Bus.

 The CI873A module wi l only work with System 800xA 6.0.3.3, 6.1.1

 and subsequent versions. The CI873A support 6 redundant pairs of

 CI873A from 5.1 FP4.