Power Plant and Process Control Systems
Digital Turbine ControlSystems
System OverviewReference List
GEC-Alsthom Energie GmbH
Digital Turbine Control Systems - System Overview 3
Contents Page
ME 4012 process control systemViews on digital turbine control systems 4
Digital turbine control systems - Perspectives 4
Control system modernization ofexisting turbines - Perspectives 5
Layout diagram 6
Turbine controller 8
Control and instrumentation of the turbineauxiliary plant 8
Turbine monitoring 9
Turbine protection 9
Turbine temperature controller 10
Operator control and process monitoring 10
Turbine control systems - Reference list 11
System Overview
As all fields of engineering, power station technology has pro-gressed enormously during the last years. Especially in the field ofsteam turbines, new knowledge has been gained about materialstrength and long-term behaviour, flow dynamics and design, andhas turned the relatively simple turbine of the past into a hightecunit.
This advance in technical standards in power stations increases therequirements for plant safety, improved availability and maximumturbine life.
With our ME 4012 process control system a digital turbine con-troller is now available that meets these high demands and is capa-ble of recording and independently controlling every single process within the specified limits, thus reliably fulfilling the DVG guidelines.
Higher-level automated function groups ensure optimal interactionof the individual processes so that the entire industrial complex“Power station” with its huge capital expenditure can be operatedsafely and economical for a long time.
Let us take a closer look at a particular part of the power station:the turbine set. For this section alone, the ME 4012 process controlsystem has to meet very specific requirements for safe and reliablecontrol of the five main operating conditions
• starting and synchronization
• loading and power operation with power controller and frequencyinfluence
• controlled deceleration at load shedding and securing the stationservices at load shedding
• load ramp operation
• shut down.
Furthermore, the ME 4012 process control system continuouslymonitors the actual status of the plant so that the necessary conclu-sions for optimal plant operation can be drawn from any changesthat might occur. The aim of this enhanced turbine control systemis to ensure
• operational safety
• availability
• extended life expectancy
• convenient operator guidance and
• easy maintenance.
Throughout its long operational life the turbine set is to run and bemaintained at maximum efficiency.
Digital turbine control systems - Perspectives
With the development of the digital turbine controller, the HelmutMauell company was able to implement the experience and know-how obtained over many years in the
• development
• design
• manufacturing
• installation and
• commissioning
of control and instrumentation systems. The ME 4012 was devel-oped into a process control system that is completely open for allareas of block and turbine control. This also applies to processeswhich impose particularly strict requirements on the controller cycletime, such as turbine speed control.
Main functions of the turbine control system:
• Turbine controller (speed and power control)
• Turbine temperature controller (life expectancy and transient calculation)
• Turbine auxiliary plant (measurement, drives, closed-loop controls, function groups)
• Turbine load current protection (oscillation, expansion, temperatures)
• Automatic test of load current protection
• Turbine no-load current protection (overspeed, generator and tankprotection)
• Automatic test of no-load protection
• Turbine control room (operator control and monitoring, alarm logging)
• Central control system diagnostics, configuration anddocumentation
• Easy interfacing for connection to block control system based onthe SUB-NET process bus
Based on these functions, the utility industry is provided with aprocess control system which, using standard
• system hardware
• firmware
• documentation
• operator interface
economically and conveniently automates, monitors and controlsthe entire power station process which includes the
• steam generator
• turbine set
• auxiliary plant for operation and pollution monitoring.
The resulting advantages for the power supply companies is ourcontribution to new perspectives in digital turbine control.
4 Digital Turbine Control Systems - System Overview
ME 4012 Process Control System Views on Digital Turbine Control Systems
Digital Turbine Control Systems - System Overview 5
Control System Modernization of Existing Turbines - Perspectives
Digital Turbine Control Concepts
Control System Overall Concept
Conditionsfor future operation
Recommendationsfor future operation
DVG guide lines forplant safety
Life expectancyAvailability / Reliability
Extended safetyOperation monitoring
Primary control(frequency back-up control)
Secondary control(system characteristic control)
Block control reserveOverspeed protection
Fundamental protectionExtended protection
Temperature controller (TLG)Load limit facilityMP inlet control
Protection monitoringTurbine monitoring
Turbine auxiliary plant
Operator control and process monitoringLocal operator control
ME-VIEW
Central configurationand documentation
M
TLG report Logs and reports
Turbinecontroller
Local opera-tor control
Turbine tempe-rature controller
Turbineauxiliary plant
Closed-loopcontrol
Drive control
Signalconditioning
Turbinemonitoring
Turbine monitoringmeasuring system
Turbineprotection
Turbine protectionRS Test
Turbinecontroller
Turbine monitoringmeasuring system
Turbineprotection RS
Turbineprotection RS
Turbineprotection AS
Turbinecontroller
Automatedfunction groups
Turbine protectionAS Load current
Turbine protectionAS No-load current
Steam generatorcontrol system
SUB-NET process bus
M
ME 4012 digital turbine control: hardware system overview
6 Digital Turbine Control Systems - System Overview
Digital Turbine Control Systems - Layout Diagram
Binary/Analog Binary-
SUB-NET
Analog -input
Turbinetemperature
controller
Turbine loadpressurecontroller
Blockpower
coordinator
Turbine controller- Speed controller and speed master controller 2v3- Power controller and power master controller- MP inlet control- Live steam limit pressure control- Hot reheater accumulation control- Heat extraction control- Temperature control LP lines- Valve positioner HP, MP/LP
Turbine temperature controller- Life expectancy calculation- Transient limitation- Logging and reporting- Temperature control backup
Block power coordinator
Turbine auxiliary plaClosed-loop control
- Gland steam pressure- Gland steam tempera- Bearing oil temperatu- Condenser level cont- Condenser min. qty. c- MP bypass control wipressure and injection
Function groups- Function group Coolin- FG Condensed steam- FG Bearing oil, actuatin- FG Evacuation- FG Blocking steam- FG Bleeding- FG Water extraction- FG Turbine control
Steam generator- Coaling, pulverization- Air / flue gas- Coaling (fail-safe)- Feed-water- Superheater- Condensed steam- Long-range energy branch- Station auxiliaries service
Auxiliary plant- Flue gas desulfurization- DeNOx, NH3 tankage- Water treatment- Condensed steam treatment- Coal, lime supply- Ashes, gypsum disposal
#
+ -
K
M
S
F
#
n
P
N
f
FD
HD G~MD/ ND
Block control system
M F
Turbinespeed
controller
Closedcontro
Automatedfunctiongroups
DE
Radioclock
Events
Video printer
ME-VIEWworkstation
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
Fr 08.Jul 94 Monitoranwahl:
Block console
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
Plantinformation
system
Localoperator station
ME-VIEW-PM
ME-AIS
Plantmanagement
Gateway
Shift engineer console
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
LAN
Printerserver
Alarms
Process dataserver,
redundant
Digital Turbine Control Systems - System Overview 7
Channel 1
Prozeßbus
Channel 2 Channel 3
SUB-NET
Serial linkThird-party
system
Turbineprotection RS
Test
Limit valuesAnalog
input
Limit valuesAnaloginput
Limit valuesAnalog
input
lantl
ure controlerature controlture controlntrol
y. control withion control
oling wateram transportting fluid and rotary mechanism
n
Turbine no-load current protection- Overspeed- Condenser pressure- Bearing oil pressure- Tank protection- Generator protection- Tail blade protection- Shaft position
Protection monitoring No-load current- Electronic protection system- Hydraulic trip
Turbine monitoring- Turbine speed- Shaft oscillation- Bearing housing oscillation- Relative expansion- Shaft position- Absolute expansion- Axial thrust
Turbine load current protection- Sensor 2v3- Processing 2v3- Trip 2v3
Single test Quick-action stop valve
HD MDK X
#
+-
+
+
S
#
L L
Sensor andprocessing
2v3,trip RS
1v2
Single testQuick-action
stop valve
ND G~
ed-looptrol
Drivecontrol
SSV
TR
G
RV
& & &
Turbinen-welle
SS Turbine
LS 01
&
& 1>_
2 v 3 2s 0
SS Turbine
LS 01
&
& 1>_
2 v 3 2s 0
SS Turbine
LS 01
&
& 1>_
2 v 3 2s 0
PD-LAN (redundant)
DEDE#
+ -
K X
#
+-
++
S
#
S
F
L L
#
n
P
N
f
FD
HD GMD/
M
M F
ND ~
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
Archivl:
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94 Monitoranwahl:
ME-VIEWworkstation
DRP-LANBridge
Diagnosis and documentation room
CDWriter
Measuring anddiagnosis station
Document printer
Configurationand documentation
station
Modem
Telediagnosis
ME-VIEW-PM
Kraftwerks-StatusÜbersicht BlockKalkförderungKohleförderung
AscheförderungAscherezirkulationLuft/RauchgasGasfeuerung
SpeisewasserregelungÜberhitzerFernwärmeauskopplungEigenbedarf
ArchivFr 08.Jul 94Monitoranwahl:
CAE-SystemME-DRP
8 Digital Turbine Control Systems - System Overview
Turbine controller (TR)
As the turbine controller's modular design is based on the ME 4012standard modules, the system for industrial turbines can be of sin-gle-channel structure, whereas a two-channel structure with bump-less transfer can be implemented for the highest power ranges.
The functions of the turbine controller:
• Measuring data preparation
• Speed control
• Pressure control
• Power control
• Valve position control
• Control logics
• Alarm generation
• Operator guidance
Turbine controller special features:
• Controller cycle time of approx. 10ms
• Speed signal resolution: 0.5mHz
• Speed measuring accuracy: 2mHz abs. at 50Hz
Control and instrumentation of the turbine auxiliary plant(THR)
Besides the turbine speed and power control systems, the turbineauxiliary plant too is of great importance for the safe operation andcontrol of the turbine. Some of its main tasks are:
• Gland steam pressure control
• Gland steam temperature control
Using the ME 4012 standard modules, the system can be configured to implement clear and well-structured control solutionsfor the defined tasks.
The system comprises:
• Field units for measuring and instrumentation
• Field installation and cabling
• Measuring data preparation
• Binary signal conditioning
• Drive control
• Closed-loop control and power controller
• Alarm generation
• Automated function groups
• Operator control level
The main functions are:
• Control of the turbine auxiliary control loops
• Control of the servo drives
• Automated function groups for controlled operation
• Operator guidance at manual operating mode
• Operator control and monitoring from a central control room
100 rpm
1 min
600 rpm
1 min
3000
40
3300
(PI-Control response)
Dxd
350-500 ms
(P-Control response)
3150
3240
5 min 1 min
Dxw
99%
max = 5-7%
Turbine behaviour at start-up and load operation and load shedding
Target speed
Steady-state deviationdepending upon load andproportional band(Xp = 4-6%, V = 16-25)
Load shedding
Sycnhronizationphase w.r.t. to power
Load connection,load operation on network
Rotary mechanismoperation
Overspeed protection triggering (emergency tripping)
dndt
dndt
dndt = 300 r.p.s. =Turbine running time constant
tmin
1min
Turbine controller characteristics :- Cycle time : < 15 ms typ.- Speed measurement : + 2 mHz abs. - Resolution : 0,5 mHz
frequency
Turbine behaviour: start-up and load operation
Digital Turbine Control Systems - System Overview 9
Turbine monitoring
Derived from the investigations into plant safety and availability, theconcept of dynamic simulated tests of all sensors and modules formeasuring data preparation and limit value generation ensuresmaximum availability with only a minimum of expenditure. Also,thanks to the two-channel measuring data preparation and limitvalue generation, any due repairs can be attended to without hav-ing to interrupt turbine operation. Based on elaborate test reports,preventive actions (or measures) can be taken to monitor and slowdown material ageing.
Turbine monitoring comprises:
• Measuring data preparation with interface to the online dynamicsimulated test
• Signal evaluation and limit value generation
• Measuring data indication and alarm generation
Principal measurements:
• Turbine speed (accuracy: ±0.04‰ absolute)
• Shaft oscillation
• Bearing housing oscillation
• Relative and absolute expansion
• Shaft position
• Axial thrust
Turbine protection (TS)
The turbine protection covers all criteria that can cause damage tothe plant. If one of the criteria exceeds a permissible limit, the tur-bine protection interrupts the operation of the plant.
In compliance with the classification of protection criteria (VGBbrochure VGB-R 103-M "Monitoring, safety and protection equip-ment in steam turbine plants"), the turbine protection is structured insuch a way that it fulfills the requirements for reliability and availabil-ity of the overall system.
Turbine protection comprises:
• 3-channel overspeed protection (double redundancy)
• Limit value generation and signal linking
• No-load current tripping signal generation
• Online test facilities for all protection components
Main functions:
• Overspeed protection
• Fundamental protection(bearing oil and condensator pressure, shaft position, tank protection, generator protection, emergency stop)
• Extended protection(shaft oscillation, relative expansion, bearing temperatures, wastesteam temperatures, temperature difference HP, MP
The protection system is completely backed up by a redundant pro-tection system in all areas of signal processing. Wired OR logic isused to link the signals from the turbine monitoring with generalmachine protection. The redundant electromagnetic seat valves inorder to relieve the spring-loaded quick-action stop and servovalves are directly activated via a hard-wired N/C current NANDmodule. Moreover, the automatic test procedure on independentsubprocessors allows the turbine protection facilities - including thequick-action stop valve activation - to be online tested at any time,without significant impairment of the turbine operation.
Channel 1
Channel 2
Channel 3
Reserve
&
2 v
3
Channel 1Channel 2
Turbine shaft
Speed measurement :
Accuracy +/- 2mHz = 0,004 % at 50 Hz
Signal resolution 0,5 mHz
Signal sampling rate 5 msec.
Pulse amplifierTurbine
overspeedprotection
Turbine speedand power controller
Turbinespeed measurement
Turbine speed signal derivation and conditioning
10 Digital Turbine Control Systems - System Overview
Turbine control mimic diagram
Turbine temperature controller (TLG)
Taking into account various measuring values, the turbine tempera-ture controller computes the permissible transient values of the tur-bine's steam temperatures, performance and valve position. Inaddition, it constantly determines the degree of fatigue of those tur-bine parts which are subjected to heavy strains.
The integration of the TLG hardware in the turbine controller cabi-net and the direct connection to the process ensure that the TLG isoptimally linked to the plant’s control and instrumentationsystem.This allows, for example, to conveniently print out the col-lected data on the allocated TLG report printer or monitor of a localoperator station.
The TLG’s technical features:
• Process computer with 32-bit central unit
• Redundant SUB-NET process interface for all process data andcontrol commands
• Hard disk drive
• TLG report printer
• Monitor interface
• Key board interface
Main tasks of the TLG:
• Life expectancy calculation
• Transient limitation to prolong material life
Operator control and process monitoring
Operator control and process monitoring of the digital turbine con-trol systems (TLT) can be implemented in two ways:
1. Mauell - TLT works as a stand-alone process control systemwhich is linked to a higher-level third-party process control system.
The TLT is linked to a higher-level block control system via a serialinterface.
2. Mauell - TLT is an integrated part of the higher-level ME 4012process control system.
In comparison to the stand-alone system, this solution offers anumber of advantages:
• uniform design
• uniform documentation
• uniform alarm processing
• uniform operator control and process monitoring philosophy
• central configuration and diagnostics
An ME-VIEW-PM system is used for local operator control andprocess monitoring.
Furthermore, the simulation and test equipment can be started bymeans of an operator’s panel provided for each turbine controllerinside the cabinet.
Digital Turbine Control Systems - System Overview 11
Turbine Control Systems - Reference List(Excerpt)
Cus
tom
erLo
catio
nB
lock
Turb
ine
*O
utpu
tFu
nctio
nTC
SO
EM
(MW
)
ES
KO
M E
ngin
eerin
g G
roup
, Süd
afrik
aM
atim
ba1
- 6M
E6
x 66
5T
S, T
LGM
E 4
012R
L (T
eila
nl.)
AE
ES
KO
M E
ngin
eerin
g G
roup
, Süd
afrik
aLe
thab
o1
- 6M
E6
x 62
0T
S, T
LGM
E 4
012R
L (T
eila
nl.)
AE
EN
SO
Gut
zeit
OY
, Fin
nlan
dIm
atra
1M
E92
TS
, TR
ME
401
2RL
AE
RW
E E
nerg
ie A
G/V
SE
Ens
dorf
C1
ME
315
TR
, TLG
ME
401
2RL
AE
E.O
N /
Gro
ßkr
aftw
erk
Fra
nken
Fra
nken
I2
ME
400
TR
ME
401
2RL
AE
E.O
N /
llse
Bay
ernw
erk
Ene
rgie
anl.
Gm
bHP
lein
ting
QM
E42
5T
HR
ME
401
2RL
E.O
N /
llse
Bay
ernw
erk
Ene
rgie
anl.
Gm
bHP
lein
ting
AA
EG
300
TS
, TH
RM
E 4
002-
Ste
ueru
ng, R
iva-
alt
AE
MD
Pap
ier /
Hai
ndl P
apie
r A
ugsb
urg
IVM
E20
TR
ME
401
2RL
AE
Voe
st A
G, Ö
ster
reic
hLi
nz4
ME
85T
R, T
S, T
LGM
E 4
012S
NA
E
VS
EE
nsdo
rf A
VII
AE
G11
0T
S, T
RM
E 4
012R
LA
E
Hal
le-T
roth
aH
alle
GT
+DT
SIE
INT
ME
401
2RL
Öst
erre
ichi
sche
Dra
ukra
ftwer
ke A
GV
oits
berg
1M
E33
0T
S, T
LGM
E 4
002
+ R
iva
AE
GE
W K
öln
Nie
hlI
ME
323
TR
, TS
ME
401
2SN
AE
PC
K S
chw
edt
Sch
wed
tG
AE
90T
R, T
SM
E 4
012S
NA
E
PC
K S
chw
edt
Sch
wed
tG
AE
90T
R, T
SM
E 4
012S
NA
E
Pei
ßen
berg
er K
raftw
erks
ges.
Pei
ßen
berg
III
ME
40T
R, T
S
ME
401
2SN
AE
IEC
Isra
el E
lect
ric C
orpo
ratio
n Li
mite
dR
uten
berg
5 - 6
ME
2 x
550
TS
, TLG
ME
401
2RL
+ R
iva
AE
MV
A K
iel
Kie
l1
B&
V9
TR
, TH
RM
E 4
00
Rhe
inbr
aun
AG
Wac
htbe
rg2
ME
90T
SM
E 4
012S
N +
HD
-Ste
ll.-R
egle
rA
E
ST
EA
GLü
nen
7A
EG
350
TR
, TS
ME
401
2SN
AE
VK
RK
nepp
erC
AE
G35
0T
R, T
SM
E 4
012S
NA
E
IEC
Isra
el E
lect
ric C
orpo
ratio
n Li
mite
dM
D-B
, Had
era
1, 3
ME
2 x
550
TH
R, T
S, T
GM
E 4
012R
L +
Riv
aA
E
NO
K T
heiß
, Öst
erre
ich
/ EV
NT
heiß
BG
AE
250
TR
, TS
ME
401
2SN
AE
RW
E E
nerg
ie A
GF
rimm
ersd
orf Q
QM
E30
0T
RM
E 4
012S
NA
E
Con
elB
raila
1LM
Z2
x 21
0T
RM
E 4
012S
NA
E
Tha
Too
mT
haila
nd1
- 2G
AE
2 x
160
TR
, TS
ME
401
2SN
AE
Sw
B E
rzeu
gung
, Bre
men
Haf
en6
ME
300
TR
, TS
ME
401
2SN
AE
Ene
rgie
-Ver
sorg
ung
Nie
derö
ster
reic
h A
GD
ürrn
rohr
AM
E32
0T
S, T
LGT
S: M
E 4
012S
N, T
R: R
iva
AE
Bra
unsc
hwei
gisc
he K
ohle
nber
gwer
ke A
GB
usch
haus
2M
E35
0T
LG, T
SM
E 4
012S
N
KE
KK
osov
o1
ME
350
TH
CM
E 4
012S
NA
E
VA
LAF
innl
and
-G
AE
230
TR
, TS
ME
401
2SN
AE
KE
KK
osov
o2
ME
350
TR
ME
401
2SN
Ste
llung
sreg
ler
AE
AW
G W
uppe
rtal
Wup
perta
lT
urb.
A25
TS
ME
401
2SN
ES
KO
M E
ngin
eerin
g G
roup
, Süd
afrik
aM
atla
1 - 6
ME
6 x
600
TR
ME
401
2SN
AE
ICP
ET
S. A
. Buk
ares
tR
umän
ien
TR
ME
400
, ME
401
2SN
12 Digital Turbine Control Systems - System Overview
Turbine Control Systems - Reference List(Excerpt)
Cus
tom
erLo
catio
nB
lock
Turb
ine
*O
utpu
tFu
nctio
nTC
SO
EM
(MW
)
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 1
Mün
chen
DT
1M
E83
TR
, TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 1
Mün
chen
GT
1S
IE V
9499
TR
, TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 1
Mün
chen
GT
2S
IE V
9499
TR
, TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 2
Mün
chen
DT
Als
tom
150
TR
, TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 2
Mün
chen
GT
1G
E M
ark
V15
0IN
TM
E 4
012S
N
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 2
Mün
chen
GT
2G
E M
ark
V15
0IN
TM
E 4
012S
N
Sta
dtw
erke
Saa
rbrü
cken
, HK
W R
ömer
brüc
keS
aarb
rück
enM
E90
TR
, TS
ME
401
2SN
E.O
N K
raftw
erke
AG
Hey
den
ME
920
TR
ME
401
2SN
HE
W A
GT
iefs
tack
-Ers
atz
TU
7M
E16
0T
R, T
S, T
LGM
E 4
012S
NA
E
MV
A S
tape
lfeld
Sta
pelfe
ldS
iem
ens
14T
RM
E 4
012S
N
RW
E E
nerg
ie A
GH
ucki
ngen
1 - 2
ME
2 x
315
TR
, TLG
ME
401
2RL
AE
EP
ON
, Nie
derla
nde
Ber
gum
1, 3
ME
2x30
0T
LG, T
RLe
itger
ät: M
E 4
012S
N, T
R:R
iva-
alt
AE
VE
AG
, Ber
linJä
nsch
wal
deA
- F
LMZ
6 x
500
TR
, TS
, TLG
ME
401
2RL
AE
ES
KO
M E
ngin
eerin
g G
roup
, Süd
afrik
aG
root
vlei
1 - 6
6 x
200
TS
, TLG
ME
401
2SN
AE
Gas
turb
ines
:
EnB
W K
raftw
erke
Altb
ach
GT
AS
IE V
93T
RM
E 4
012S
N
Fre
uden
berg
Wei
nhei
mG
T 1
6,3
TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 2
Mün
chen
GT
1G
E M
ark
V15
0IN
TM
E 4
012S
N
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 2
Mün
chen
GT
2G
E M
ark
V15
0IN
TM
E 4
012S
N
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 1
Mün
chen
GT
1S
IE V
9499
TR
, TS
ME
401
2SN
Sta
dtw
erke
Mün
chen
, HK
W S
üd -
GU
D 1
Mün
chen
GT
2S
IE V
9499
TR
, TS
ME
401
2SN
* A
bbre
viat
ions
TR
T
urbi
ne s
peed
and
pow
er c
ontro
ller
TS
T
urbi
ne p
rote
ctio
n w
ith p
ower
par
t and
test
uni
tT
LG
Tur
bine
tem
pera
ture
con
trolle
rT
HR
A
utom
atic
turb
ine
with
con
trol l
oops
and
pro
cess
con
trolle
r int
erfa
ceIN
T
Inte
grat
ion
ME
M
AN
-EN
ER
GIE
, Nur
embe
rgLM
Z
Leni
ngra
der m
etal
wor
k S
t. P
eter
sbur
gG
AE
G
EC
-Als
tom
Ene
rgie
Nur
embe
rgS
IE
Sie
men
s V
93...
/ V
94...
B&
V
Blo
hm&
Voß
, Ham
burg
AE
G
AE
G-A
G, B
erlin
Germany
Helmut Mauell GmbHAm Rosenhügel 1–7D-42553 VelbertTel.: +49 (0)20 53 /1 30Fax.: +49 (0)20 53 /1 36 53Internet: www.mauell.comE-Mail: [email protected]
For an up-to-date list of all our representa-tives and branch offices, please visit ourhomepage: www.mauell.com
Representatives andBranch Offices All Over The World:Abu Dhabi U.A.E.ArgentinaAustriaBelgiumBrazilCzech RepublicDenmarkFinlandFranceGreat BritainHungary
IranKoreaKuwaitNetherlandsNorwayPolandSingaporeSpainSwedenSwitzerlandTurkeyUSA
1.4012.21E07
Representatives