Product Line: Transformer Cooling Systems

FACE INCREASED
ENERGY DEMAND
WITH COOLNESS
 KELVION – A TRIBUTE OUR LOGO – INSPIRED
TO LORD KELVIN FROM THE SCHEMATIC
(1824 - 1907) FOR HEAT EXCHANGER

Lord Kelvin formulated

the laws of thermodynamics
and absolute units of
temperature are stated
in kelvin, in his honor.

67 BRANCHES AND SALES 4,500 ­EMPLOYEES

PARTNERS WORLDWIDE ­WORLDWIDE

EXPERTS IN
HEAT EXCHANGE –
SINCE 1920 YOUR MARKETS ARE
OUR MARKETS
KELVION HAS A
LONG HISTORY

Welcome to Kelvion. Heat exchange is our business. Worldwide. Many years of experience and in-depth expert knowledge make 2015 With the new name, the former
GEA Heat Exchangers is writing
As a market leader in the technology sector, we have been us specialists in this field. its own history as Kelvion.
producing heat exchangers for virtually every conceivable Our heat exchangers are designed for the requirements of the
industrial application since the 1920s, including tailor-made respective process, thereby ensuring optimum energy efficiency Chemicals Food &
Beverages
Heavy
Industry
HVAC 2014 GEA sells the
Heat Exchangers
solutions suited for the most complex environmental conditions and reliability for all market segments. This provides our customers
Segment to Triton.
– as of 2015 under the name of Kelvion. with a technological advantage that reduces operating costs
and has a lasting effect.
With one of the most comprehensive ranges of heat exchangers 2010 Reorganization of GEA‘s 9 Divisions into techno-
logically distinct Segments. The largest segment
in the world, which includes compact finned-tube heat exchangers, A reliable after-sales service is essential with regard to customer is the Heat Exchangers Segment.
plate heat exchangers, single tube heat exchangers, shell and loyalty and retention. We have a worldwide service network Refrigeration Marine Oil & Gas Power
tube heat exchangers, transformer cooling systems and wet at our disposal. Our engineers are thereby able to carry out 1999 In April 1999, GEA
was acquired by
cooling towers, we are a sought after partner in a wide variety maintenance work and complete repairs on-site at a customer’s mg technologies AG
of industries, such as: the energy industry, the oil and gas industry, premises. This prevents unnecessary downtime – because we
the chemical industry, the shipbuilding sector, the food and bev- are highly committed to earning your trust.
erage industry, the heavy industry, the sugar industry, the trans-
1920 Foundation of GEA in
Bochum by Otto Happel sen.
(Born 1882)
port sector, as well as building and refrigeration technology. Kelvion – Experts in Heat Exchange. Sugar Transportation
 Optimum heat exchange

INNOVATIVE
COOLING SYSTEMS
FOR CHALLENGING
TASKS

Oil-emerged transformers depend upon high-performance Our cooling systems are purpose-built to suit the application, To determine the best cooling system for the application
cooling systems to maintain their operational integrity over ensuring that the transformer oil is cooled safely, sustainably we first consider the environment in which it will be installed WHY CHOOSE KELVION
a long life cycle. With decades of experience in providing and efficiently. They can be found at offshore and nuclear (corrosive, dusty, sandy etc), the operating temperatures and TRANSFORMER COOLING SYSTEMS?
innovative heat exchange technology, combined with a facilities, conventional power plants, hydro-power plants, the available space. Based on this information, our expert
global service network, Kelvion can provide the right substations and railways, as well as on furnace and rectifier engineers will design the best configuration to suit your ⊲⊲ Innovative and proven technology
solution for the most challenging tasks. transformers. requirements. ⊲⊲ Sustainability
⊲⊲ Reliable and safe performance
⊲⊲ Individually-designed for the toughest of tasks
TAILORED SOLUTIONS
FOR THE TOUGHEST
TASKS

Air or water cooling

During operation, the transformer oil absorbs the heat gen- Whichever system is right for you, we offer Premium,
erated in the transformer core and needs to be cooled down. Advanced and Smart options, in a wide choice of materials,
Our specialty are cooling systems with an outstanding small all designed and precision-engineered to the highest
footprint, high thermal and economic efficiency. Kelvion offers standards to suit your operation.
two type of coolers for the task: Transformer Oil Air Coolers
(TOACs) and Transformer Oil Water Coolers (TOWCs). Safety and reliability
We take pride in providing products that operate safely and
Air as a non-corrosive cooling medium is virtually accessible at reliably and have a long life time. That is why we subject our
no cost in unlimited quanitities, making it an invironmental coolers to stringent tests in our workshops. Designed by Kel-
friendly option. TOWCs are an even more compact cooling vion’s R&D teams, our state-of-the-art testing station allows
solution which are the best choice in applications where water hot oil tests with pressured, hot transformer-oil.
is available and space and or noise emmissions are a demand. The station is equipped with a battery of filters to eliminate
Using our market-leading double tube safety heat exchanger any impurities that may be deposited inside the tubes during
design, this system safely separates the oil and water, while manufacturing. In this way, best-in-class preparation for
providing optimum heat exchange. Additionally, it can also be integrating our cooling systems with transformers is assumed
used to recover heat from transformers. and monitored.
TCS – Transformer Cooling Systems

OVERVIEW
TOAC TOWC TOP

TRANSFORMER TRANSFORMER TRANSFORMER

OIL AIR COOLER OIL WATER COOLER OIL PUMPS

Premium Premium Axial pumps

Hot Dip Galvanized Design Double Tube Safety Design, for forced cooling systems,
25% fouling reserve with radial impellers and
Advanced according to DIN 50216-9 maintenance free sleeve bearings
Compact Design
Advanced Axial pumps
SMART Double Tube Safety Design, for radiator cooled systems,
Most standardized solution available 10% fouling reserve large flow cross-section of
Adjusted DIN values for cost propeller allows natural convection
Compact Customized optimization if pump is switched off
Compact design tailored to broad
variety of requirements SMART Angle Type pumps
Double Tube Safety Design, for forced cooling systems with
Aluminum Block Cooler 5% fouling reserve, special space requirements,
The alternative to panel radiators with fixed tube bundle with radial impellers
unbeatable higher power density and
possibility to controll oil temparature Traction pumps
actively. lightweight Radial impeller pumps
for locomotives
Transformer Mobile Auxiliary Cooler
Instantly installable retrofit unit
for transformer cooling capacity
extension
Transformator Oil Pumps

TRANSFORMATOR
OIL PUMPS
OVERVIEW
Kelvion is specialized in design and manufacturing of
transformer oil pumps. With over 60 years of experience
in this field and countless worldwide installations, we are
able to provide a pump for each individual requirements.
Our oil pumps are designed to last. Our maintenance
free sleeve bearings guarantee long lifetime.

Axial-Pumps (In-line) with Radial Impellers Axial-Pumps (In-line) with Propeller-Type Impellers
Inline pumps with radial impellers 25, 50, 100, 2AR2 and PR series pumps are used for transformers which are Propeller Pump
2AR4 series for forced transformer cooling systems. cooled by radiator batteries. The pump operation supports Radiators
The transformer oil flows through an inline mounted pump. the natural convection during start-up and when ambient (e.g. panel radiators)
A spiral casing serves for pressure buildup. The flowrate can temperatures are high. Thanks to the large flow cross section • DN 150 – 300
be specifically adapted to the cooling system by varying the of this pump, the free flow of the transformer oil is not • 20 – 500 m3/h
impeller diameter. Maintenance free sleeve bearings are restricted when the pump is switched off. For this reason,
available at 25, 50, 100 series. there is no need for a bypass when the pump is shut down in
part-load operation. Partially available with sleeve bearings.

Transformer Oil Angle Pumps with Radial Impellers Transformer Oil Pumps with Radial Impellers
Where space is restricted, angle-type pumps of the for Traction Transformers
W series can be used for transformers with oil/water or oil/ Due to their lightweight and compact aluminum construction,
air coolers. A axial spiral casing serves for pressure buildup. the pumps of the B2 series are especially suited for
The bearings and the motor are flushed with a transformer oil transformers and power converters for rail-mounted vehicles.
side-stream. The flowrate can be specifically adapted to the Pressure buildup takes place in the impeller. The bearings
cooling system by varying the impeller diameter. and the motor are flushed with transformer oil. The flowrate
can be adapted to meet the operating requirements by
varying the impeller diameter.
 OUR ­SERVICE
START-UP SERVICES TESTING AND MONITORING
We ensure that our products are delivered Having an understanding of the condition of
safely and are fully validated to give a the equipment allows you to secure reliable
robust and reliable performance over as production, improve safety and energy
long a life cycle as possible. efficiency and increase equipment lifetime.

IN THREE
It can also help you to prevent breakdowns
⊲⊲ Assistance to assembly and disassembly, and prepare for the future.
shipping and transport
⊲⊲ Function test
⊲⊲ Thermal and hydraulic measurements

WORDS:
at test stand (oil-water or water-water)
SPARE PARTS AND ⊲⊲ Thightness test and refurbishment / repair
SPARE PARTS SOLUTIONS ⊲⊲ Performance measurement
Even the best equipment shows signs of ⊲⊲ Noise measurement
wear over time. We use only the highest ⊲⊲ Bearing monitoring
quality spare parts, designed to match the

­PEACE
excellence of the originals. This ensures
that the optimum interaction between
components is maintained. By safeguarding UPGRADES AND REPLACEMENTS
the original design we offer maximum We replace components to keep our heat
security of your investment. exchangers running smoothly and to prevent

OF MIND
downtime. Where parts have become
⊲⊲ Delivery and assembly of spare parts obsolete, we will suggest an upgrade.

⊲⊲ Analysis and assessment of performance

bottle-necks
REPAIRS AND OVERHAULS ⊲⊲ Adaptation of water and oil side to new
We understand that unscheduled downtime operational demands
can be disastrous. That is why our ⊲⊲ optimizaton of air side to reduce noises,
trained engineers are ready to respond right up to installation/extension of
quickly in an emergency. We will review sound-absorbing facilities
and repair components while keeping ⊲⊲ Bearing replacement and functional check
any disruption to a minimum. Any overhaul
work is carried out in our service centers
and conforms to the highest quality
standards. CONSULTING AND TRAINING
Would you like a consultancy service that
⊲⊲ Complete overhaul, repair or takes into account the special features of
new production your process and were you feel that finding
⊲⊲ Renewal of corrosion protection and the right solutions are more important than
exterior painting closing the deal quickly? Then you will
⊲⊲ Overhaul of fan motors and fans feel right at home with Kelvion. We will work
⊲⊲ assessment of zinc layer of finned tubes closely with you to develop the exact solution
field regarding remaining lifetime that is best tailored to your needs.
⊲⊲ Assessment (on site) and renewal of
corrosion protection at the remaining ⊲⊲ Planning, processing and documentation
exterior surfaces if necessary (at factory) of service
⊲⊲ Assessment of operating conditions
⊲⊲ Examination and assessment of operating
conditions
INSPECTIONS AND MAINTENANCE ⊲⊲ Consulting for design, construction and
Through regular inspections and optimization of the complete plant at any
maintenance, we help you to reduce stage of the project
costs, extend the lifetime of all your
Kelvion products and to achieve a reliable
performance. This also helps you with FURTHER SERVICES ON REQUEST
budget planning.

⊲⊲ Internal cleaning (tube side: at factory or

on site, shell side: at factory)
⊲⊲ Cleaning and flushing of shell and tube
side including documentation of results
⊲⊲ Brush cleaning tube side including
documentation of results
⊲⊲ electrotechnical and mechanical
inspection of fans and drive motors
GLOBALLY
ACTIVE
AND STILL Global production

© Kelvion • All rights reserved • Version 01 • 02/18

footprint

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and service

No matter where your market is, regardless of country, we are

never far away. We are always happy to answer any questions you Just scan this QR code with your smartphone or
may have and meet your requirements. Even the largest, most visit our website at: www.kelvion.com – there
successful project begins with an initial, profitable conversation. you will find a highly competent contact in your
We look forward to hearing from you. immediate vicinity.
www.kelvion.com