Early modernization of turbine
hydraulic system – less maintenance costs,
ensured availability
Turbine Controls
Instrumentation, Controls & Electrical
Width: 4,36
Your Benefits
■ Reduced maintenance
costs and number of parts
through easy-to-service
standard components and
replacement of obsolete
devices
■ Increased operational
reliability with new, robust
mechanical/hydraulic
installations and reduced
malfunctions
■ High safety level and
reduced risks due to proven
state-of-the-art devices
■ High availability through
spare parts available
from stock
■ Reduced outage requirements by virtue of fewer
mechanical devices
to maintain
SPPA-R3000 Turbine Controls
offers perfect solutions for modernization
of obsolete hydraulic devices for all brands
of gas (combustion) and steam turbines.
The Task
Sooner or later, existing mechanical/hydraulic
turbine control and protection devices reach
the end of their service life. As these devices
are no longer readily available on the market,
one-off manufacturing can be very expensive
and involves long delivery times. Also, aging
mechanical parts and complex mechanical
installations lead to costly and time consuming
repairs and services, and experts for maintenance work are becoming increasingly scarce.
Therefore, a modernization solution is required
that perfectly fits the existing situation in the
plant and ensures reliable and secure operation
based on state-of-the-art technology.
Our Solution
Siemens SPPA-R3000 Turbine Controls offers
complete, customer-tailored solutions for the
modernization of mechanical/hydraulic turbine
control and turbine protection devices.
For a new, simplified turbine hydraulic system
with high availability and fewer components,
new state-of-the-art concepts will be applied
and new, robust, proven devices will be
implemented.
Our tailor-made solutions comprise design,
configuration, selection and procurement
of quality-assured products, time-optimized
installation and commissioning, complete
documentation and best-in-class project
management.
The scope of supply may include:
■ New speed sensors
■ New electro-hydraulic converter (EHC)
■ New 2-out-of-3 (2oo3) turbine trip block (TTB)
as central tripping interface between
hydraulic and I&C system
■ New high pressure hydraulic power unit (HPU)
■ New individual electro-hydraulic actuators
(EHA) on each control valve
The SPPA-R3000 mechanical/hydraulic solutions
allow for seamless integration of the I&C interface to the hydraulics for all turbine types,
from any vendor. The inclusion of 2oo3 turbine
trip blocks (TTB) (up to TÜV certified SIL 3
standard) replaces existing trip devices and
mechanical protection circuits. Low pressure
and high pressure types are available.
The 2oo3 hydraulic voting of three electronic
trip channels offers online test capability,
from sensor to hydraulics, of all trip channels
(including the trip block), via an incorporated
test program. The result is the highest safety
and availability levels as well as increased
reliability and reduced maintenance effort.
Plant operators can look forward to lower
service costs through devices that are easy
to service by standard personnel. Siemens
also offers spare parts and tailor-made service
concepts, if required.
SPPA-R3000 Turbine Controls uses plug-andplay solutions where possible, so outage time
can be reduced to a minimum. For example,
during control system modernization,
the modernization of the hydraulic turbine
protection and control devices fits perfectly
into the schedule of a planned plant shutdown.
New 2oo3 turbine trip block (TTB) with SIL 3, TÜV certified
siemens.com/sppa
Examples:
New state-of-the-art electro-hydraulic converter (EHC) at steam turbine
Before
Old BBC/ABB Type AS74 electro-hydraulic converter (EHC) at steam
turbine, which was installed in the 1980s
What had to be done?
■ Dismantling of old BBC electro-hydraulic converter (EHC)
■ Plug and play installation of new electro-hydraulic converter (EHC)
Result
New state-of-the-art electro-hydraulic converter (EHC)
installed for higher availability, better maintenance
and easier troubleshooting
New electro-hydraulic actuator (EHA) with high pressure hydraulic system
Before
MHI stop valve with low pressure actuator
What had to be done?
■ Dismantling of old stop valve actuator
■ Installation of new high pressure oil system (high pressure oil
unit (HPU), electro-hydraulic actuator (EHA) for the valves)
■ (Optional new high pressure trip system)
Result
New state-of-the-art high pressure oil unit (HPU),
electro-hydraulic actuator (EHA) installed
for higher availability and better maintenance
of the throttle valve
New state-of-the-art electro-hydraulic converter (EHC) at gas turbine
Before
Old BBC/ABB mechanical/hydraulic control system
at gas (combustion) turbine, installed in the 1980s
What had to be done?
■ Dismantling of old mechanical/hydraulic control devices
■ Installation of new electro-hydraulic converter (EHC)
Published by and copyright © 2014:
Siemens AG
Power and Gas Division
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens Energy, Inc.
Instrumentation, Controls, & Electrical
1345 Ridgeland Parkway, Suite 116
Alpharetta, GA 30004, USA
For more information contact
sppa-r3000.energy@siemens.com
www.siemens.com/energy/sppa-r3000
Result
New state-of-the-art electro-hydraulic converter (EHC)
installed for higher availability, better maintenance
and easier troubleshooting
R3MO_FS_TurbHydr-obsolete_e_V1-0
Order no. E50001-G230-A407-X-4A00
Printed in Germany
Dispo 05401
Printed on elementary chlorine-free
bleached paper.
Unrestricted
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Trademarks mentioned in this document are
the property of Siemens AG, its affiliates, or
their respective owners.
Subject to change without prior notice.
The information in this document contains
general descriptions of the technical options
available, which may not apply in all cases.
The required technical options should
therefore be specified in the contract.