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7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 1/20
7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 2/202 Under the Technical license of Siemens AG, Germany
Transforming high standards into leading solutionsSharing Siemens knowledge & experience of more than 100 years
TRANSTECH Transformers LLC
is a state of the art of modern
manufacturing facility in Abu Dhabi.
We are specialized in the design
and manufacturing of high quality
oil immersed & Dry type distribution
Transformers and Package
Substations. Our services arm is
capable of your service needs in allareas of transformers installations
testing, commissioning, operation
and maintenance.
Manufacturing location
ICAD II Mussafah, Abu Dhabi
United Arab Emirates
Capital
AED. 30,000,000
Annual production capacity5000MVA
Product Range
Rating: 50kVA to 6300kVA
Voltage Class: 36kV
TECHNOLOGY & LICENSE
Transtech Transformers LLC is
the licensee of Siemens AG know-
how and technology to manufac-
ture oil immersed and cast resin
transformers upto 36kV class. Sie-
mens experts provide support to
Transtech to ensure technology &
processes are maintained accord-
ing to Siemens quality standards.
In TRANSTECH, we believe in our
people because our people deter-
mine our success. Each employee
participates in continuous training
sessions to enhance his or her skills
and knowledge base. The result is a
knowledgeable, capable, and com-
mitted team of professionals with a
common goal of providing completecustomer satisfaction.
On the last transformation step from
the power station to the consumer,
distribution transformers provide the
necessary power for systems and
buildings. Accordingly, their opera-
tion must be reliable, efcient and, at
the same time, silent.
ü Distribution Transformers
ü Cast Resin Transformers
ü Package Substation
ü Special Transformers likeconverter Transformer, Arc
furnace Transformers, Earth-
ing Transformers, Auto Transform-
ers, Motor Starting Transformers
ü Services
Our Quality = Your Security
I n t r o d u c t i o n
Product Portfolio
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GENERAL
Oil immersed transformers (OIT) aresuitable for installation both indoor
& outdoor and designed for sustain
operation at an ambient temperature
of upto 55°C.
We design transformers in accordance
to IEC 60076, however they can be
designed to meet national regulation
or customer specic needs.
Transformer Design
Hermetically sealed type or
conservator type for nominal ratingfrom 50kVA to 6300kVA.
Hermetic design transformers are
suitable for location like sub oor
substation or compact substations.
MAGNETIC CORE
The magnetic core of the transformers
is manufactured from a high grade,
cold rolled grain oriented silicon steel.
The stacking of the laminations is
multi step lap type. The magnetic
core is elliptical cross section and
slitting and cutting of the core is done
by automatic Georg machine. The
magnetic core and its framework
are carefully sized to minimize
the magnetostriction effects which
constitute the main sources of soundin distribution transformers. Based
on the specication or requirement
the quality of the magnetic steel are
carefully chosen to reduce the no load
losses and / or the no load current of
the transformer.
WINDINGS
LOW VOLTAGE WINDINGS
The low voltage winding material iscopper foil. Cooling ducts are added
to control the temperature gradient.
The low voltage winding is built
around the magnetic core, and an
insulating barrier is wound around the
low voltage coil in order to provide an
electrical separation between the LV
and HV coil
HIGH VOLTAGE WINDINGS
The high voltage winding material is
copper. The shape of the conductor iseither round or rectangular. To obtain
a controlled temperature gradient,
cooling ducts are added in the coil.
High voltage coils are multilayer
helical. The winding are elliptical
shape which helps reduce the overall
length of the transformer.
TAPPINGS
Tap changers allow voltage adjustment
for a variation of the supply networkvoltages on the primary side of the
transformer or for increasing and
decreasing the secondary voltage.
Tappings are provided on the primary
winding and connected to an Off-
circuit tap changer. The operating
handle of the hand-operated offcircuit
tap changer is mounted on top cover
or tank side wall. The standard tapping
range is ±2x2.5%.Tapping range can
also be provided as per customer
requirement. The transformer needsto be deenergized to operate the off
circuit tap changer.
TANK CONSTRUCTION
The corrugated tank is the most
common type used for distribution
transformers. For hermetically sealed
transformers, the cooling ns are
designed to compensate for excessive
overpressure and to limit the effects
of liquid dilation. The corrugated
panels are welded onto the tank
Oi l T y p e T r a n s f or m e r
Three Phase Oil Immersed Transformer
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sides. Cooling radiators can also be
provided on request. The under base
is generally skid type and bidirectional
rollers are provided on request. Tank
cover is generally bolted, welded cover
can also be provided on request.
Oil leakage test is conducted on every
transformers to ensure oil tightness
after assembly.
TERMINATION
The HV termination is generally
porcelain bushing, plug-in bushing can
be provided on request. Air insulated
or fully insulated cable box can be
provided on request with min Ingress
protection IP54.
Cast resin bushing is used for LV
termiantion, porcelain bushing can be
provided on request. Additional
Neutral Bushing can be providedseparately on request for installing
protection current transformers. Air or
fully insulated cable box or bus duct
can be provided on request.
INSULATING LIQUID
The insulating liquid used is mineral
oil according to IEC 60296 - inhibited
/Uninhibited based on customer
request. We offer also synthetic ester
oil or Silicon oil based on application
or customer requirement.
SURFACE PROTECTION
One of our major quality commitments
is to provide high-quality surface
protection. The coating (painting)
type C3/C4/C5 is chosen in
accordance with the environmental
conditions, considering the degree
of pollution, humidity, etc as per ISO
2944. Zinc Spray / Hot dip galvanized
tank or epoxy base painting.
Tolerance According to IEC 60076
Total Losses ± 10% of the losses
No load and load loss ±15% of no-load and load losses
Rates Voltage Ratio (principal
tapping)
± 0.5% of rated value or of measured ± rated impedance voltage in %
the smaller of the two values applies
Voltage Ratio for other tappings ± 0.5 % of ratio stated in the order
Rated impedance voltage (principal
tapping)± 10% of rated value (when the impedance value <10%)
No-load current (mean value of the
three terminal currents)± 30% of rated value
A-sound power level without tolerance
7/25/2019 Transtech Catalog
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Oil Immersed Distribution
Transformers
Hermetically sealed with or without gas cushion
Breathing type with or without conservator
Tank Construction
Corrugated n wall tank
Plain wall tank with radiator
Bolted or welded cover
Material Copper / Copper, Aluminum / Aluminum (on request)
Manufacturing Standards IEC 60076
Rated power Up to 6.3MVA
Voltage Class Upto 36kV
Insulation level Upto 200kV BIL
Phases 3-phase
Tappings ±2 x 2.5 % (or different range on request)
Voltage regulations With off-circuit tap changer
OverLoading As per IEC
Short circuit impedance As per IEC 60076 or on requestRated frequency 50 Hz or 60Hz
Vector groups Dyn11 (any vector group according to IEC Standards)
Material thermal class insulation According to IEC 60085 class A
Temperature rise As per IEC 60076 or on request
Type of cooling ONAN or other type of cooling like ONAF, KNAN
Dielectric liquid Mineral oil according to IEC Standard, on request silicon oil , synthetic ester
Short circuit withstand abilityThe transformers are designed to withstand the thermal and the dynamic
effects resulting from a secondary short-circuit in accordance with IEC 60076-5.
Sound Level IEC 60076-10 or NEMA - TR1 or on request
Installations Indoor and/or outdoor
HV & LV terminals
HV terminals: plug-in or porcelain bushings with or without cable box (canopy
on request).
LV terminals: cast resin, bar type or porcelain bushings with or without cable
box (canopy on request).
Cable box if required can be Air insulated or fully insulated as per BS EN
503366 (IP55 class or on request)
Accessories
Standard Fitting: Rating and Diagram Plate, Lifting lugs, earthing
terminal, off circuit tap changer, HV & LV Bushings, Haulage Lug,
Lashing Lug, valves, Oil level Indicator, Skid type underbase,
Thermometer Pocket
Optional Fittings: Oil Temperature Indicator, Winding Temperature Indicator,
Pressure Relief Device, DGPT, Marshalling box / Terminal Box, Bi Directional
Roller, Jacking Pad, CT. Pressure Vaccum Gauge, Differential pressure switch
Fitting (with Conservator): Buchholz Relay, Dehydrating Breather,
Magnetic Oil level guage,
Special accessories on request
Product Specifcations (typical)
Hermetically Sealed Distribution TransformersConservator Type Distribution Transformers
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Transtech, manufacture Cast Resin Transformers based
on Siemens GEAFOL® technology.
GEAFOL cast-resin transformers are the ideal solution where
distribution transformers has to assure the utmost safety.
With GEAFOL, the limitations of liquid-lled transformers are
avoided, but the proven characteristics such as operating
safety and service life are retained. GEAFOL cast-resin
transformers comply with IEC 60076-11.
There are good reasons why GEAFOL cast-resin
transformers are used wherever absolute safety is required.
They can be found in high-rise buildings, hospitals, wind
turbines, road and underground railway shafts, offshore
installations, mines and many other similar safety critical
environments.
The GEAFOL principle has succeeded in producing
transformers with excellent electrical, mechanical and
thermal characteristics, which have also proved to be
particularly compatible with the environment. Maintenance-
free– environmentally friendly –rugged: The insulation
GEAFOL transformers are insulated with an epoxy resin/
quartz powder mixture. This is an environment tally
acceptable material that makes the windings maintenance
free, moisture-resistant, tropicalized, ame-retardant and
self-extinguishing. Even when the insulation is exposed
to arcing, no toxic gases are generated. The windings are
clamped between resilient spacers that provide effective
vibration insulation both from the iron core and mutually
between windings. The result: GEAFOL transformers are
as quiet as oil- immersed types.
Electrically safe: The aluminum foil windingThe coils of the high-voltage windings are made of
aluminum foil. Why foil windings? Because foil windings
combine a simple winding technique with a high degree
of electrical safety. The insulation is subjected to less
electrical stress than in other types of windings. In a
conventional roundwire winding, the interturn voltages
can add up to twice the interlayer voltage, while in a foil
winding it never exceeds
the plain voltage per turn because each layer consists of
only one winding turn. The result: High power frequency
and impulse voltage withstand capability. Why aluminum?
The thermal expansion coefcientsof aluminum and the used cast resin are so similar that
thermal stresses due to load changes are kept to a
minimum.
No gas inclusions: The epoxy resin casting process.
The high voltage windings are potted with epoxy resin
under vacuum at a high temperature. This procedure
prevents undesirable gas inclusions. The quality of the
potting combined with the electrical advantages of the foil
winding plays a decisive role in providing freedom from
partial discharges (up to twice the rated voltage). The low-
voltage strip winding is also of aluminum. The width of
the aluminum strip is equal to the length of the coil. This
considerably reduces axial short-circuit forces in
the transformer. The conductor strip and the insulation
material are bonded together by heating and thus form
a compact unit with sufcient strength to withstand radial
forces reliably.
Universal: The application areas
Dry-type transformers must be marked with proven
environmental, climate and re resistance ratings. Our
GEAFOL cast-resin transformers are suitable for universal
use and satisfy the requirements of the highest dened
classes, as proven in comprehensive testing:
n Environmental class E2
n Climate category C2
n Fire resistance class F1
C a s t - r e s i n t r a n s f o r m e r s
Cast Resin Distribution Transformer
The Perfect Technology
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GEAFOL Transformer technology at a glance:
Three-limb core
Made of grain-oriented, low-loss electro- lamina-
tions insulated on both sides
LV winding
Made of aluminum strip; turns rmly glued together
by means of insulating sheet wrapper material
HV winding
Consisting of vacuum-potted single foil-type alumi-
num coils; see also page 4
LV connection
HV connection
Variable arrangement, for optimal station design
HV tappings on high-voltage connection side;
for adjustment to system conditions, reconnect-
able in deenergized state
Coil support system
To insulate core and windings from mechanical
vibrations, resulting in low noise emissions
Clamping frame and truck
Rollers can be turned around for lengthwise or side-
wise travel
Insulation: Mixture of epoxy resin and quartz
powder makes the transformer nearly mainte-
nance-free, moisture-proof, tropicalized, ame- re-
sistant and self-extinguishing
Connection tubes
Temperature monitoring
by PTC thermistor sensors in the LV winding (on
request PT 100)
Paint finish on steel parts
Thick-layer coating, RAL 5009, on request: Two-
component varnish or galvanizing (for particularly
aggressive environments)
Modular design
E.g., windings can be individually mounted and re-
placed on site
Ambient class E2
Climatic category C2 (if the transformer is installed
outdoors, degree of protection IP 23 must be as-
sured)
Fire class F1
630 kVA GEAFOL cast-resin transformer, Ur = 20 kV
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Product Specifcations (typical)
Distribution Transformers Cast Resin Transformer
Enclosure (Optional) IP 21 protection class, other IP class on request
Winding Material Aluminum / Aluminum
Manufacturing Standards IEC 60076-11
Rated power Up to 4MVA
Voltage Class Upto 36 kV
Insulation level Upto 170kV BIL
Phases 3-phase
Tappings ±2 x 2.5 % (or different range on request) with tap links.Short circuit impedance As per IEC 60076 or on request
Rated frequency 50 Hz or 60Hz
Vector groups Dyn11 (any vector group according to IEC Standards)
Material thermal class insulation According to IEC 60085 class F
Temperature rise As per IEC 60076 or on request
Type of cooling AN, AF on request
Short circuit withstandabilityThe transformers are designed to withstand the thermal and the dynamic effects
resulting from a secondary short-circuit in accordance with IEC 60076-5.
Sound Level IEC 60076-10 or NEMA - TR1 or on request
Installations Indoor
HV & LV terminals
HV terminals: plug-in or resin bushings with or without cable box
LV terminals: cast resin, busbars with or without cable box
Cable box if required can be Air insulated as per BS EN 503366
AccessoriesTemperature Controller, Rating and Diagram plate, Lifting lug, Earthing terminal,
Bushings, skid underbase, rollers on request
Miscellenous To avoid oxidation core is lacque coated
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Package Substations are self-contained units available in different
designs and dimensions. Power supply requirements for residential
and industrial consumers.
Each unit comprises of three individual main assemblies, and a
typical substation would include:
1. One hermetically sealed transformer.2. One SF6 insulated Ring Main Unit.
3. One low voltage Feeder Pillar or distribution panel.
4. Sheet Steel or GRP Housing
Standard Rating
kVA 500 1000 1500
Voltage (kV) 11 11 11
Approximate Weight (kg) 4000 6000 7000
Standard Dimensions(mm) (LxWxH) 3900 x 2250 x 2600 4300 x 2700 x 2600 4300 x 2700 x 2600
P a c k a g e S u b s t a t i on
Description
Package Substation consist of following:
a) Ring Main Unit (RMU) (upto 17kV)
b) Oil Type transformer (upto 2000kVA)
c) Feeder Pillar (FP) or LV Distribution Board (LVDB)
d) Common Base
e) Enclosure (Optional on request)
Enclosure (Optional) Sheet Steel, GRP, Aluzinc
Applicable Standard IEC 62271-202, IEC 60076
Rated power Up to 2MVA
Voltage Class Upto 11kV
Layout RMU and FP can be on opposite side or on same side or on request
HV Ring Main Unit Oil Type / SF6 with Fuses / SF6 with circuit Breaker
LV Feeder Pillar On request or specication
Transformer Refer the details available in the oil type transformer product specication
Product Specifcations (typical)
7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 10/2010 Under the Technical license of Siemens AG, Germany
M a n
u f a c t u r i n g F a c i l i t y
State of the art Production Facility
Core Section
GEORG core cutting machine with Automatic
Stacking Table (estacker)
Manufacturer
Heinrich Georg GMBH
Core Cutting with estacker
It is complete CNC control core cutting machine with
automatic estacking table. The benet of estacker
arrangement over conventional core machine:
n Conventional operation the step lapping is done
by the operator, which might result in mishandling
of the core which is a thin sheet of less than
0.35mm thick resulting waviness on the edges
and air gap which can increase no load losses(NLL).
n With estacking arrangement the machine prepare
the step lap based on the design criteria fed by
the engineering thus eliminating mishandling and
ensuring smooth step lap operation.
Core Stacking Table
The benet of core stacking table are as follows:
n Easy to assembly - can x the pre stacked legs
instead of stacking the sheets layer by layer.
n Can be rotated at 360 degrees and inclined at 90
degrees for bottom yoke stacking.n Improve productivity - Assembly process faster
and easier
According to the weight and size of the core, stacking
table can be changed on the same base frames
7/25/2019 Transtech Catalog
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HV/LV windings:
The winding technology based on Siemens know-howis elliptical as compared to the rectangular or
circular windings which are most common in distribution
transformers
The benets of elliptical windings over rectangular and
circular windings are :
n In rectangular windings, the sharp corner bends
causes mechanical and thermal stress concentration
points which results in weakening the coil. This also
tends to distort the convolutions of wire and causes
an increase of stress concentration at the corners of
the coil, tending to cut into the wire. This problem is
eliminated in the elliptical and circular winding.n Circular winding construction increases the mean
length of the magnetic loop and increase core
weight against the elliptical and rectangular winding
for the same rating. Reduced size of core in
elliptical construction results in reduced transformer
dimension and thus smaller foot print.
Winding section:
Foil Winding Machine Manufacturer :
Tuboly AG
LV foil winding machine suitable for Copper & Aluminum
Foil
Wire Winding Machine Manufacturer:
Tuboly AG
n HV winding machine with single decoiler
n HV winding machine with double decoiler
n Drying oven PLC Control make: Meier
7/25/2019 Transtech Catalog
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Low Frequency Heating (LFH) Technology:
Solid insulation inside the transformer must be thoroughly
dried before oil lling. The insulating material is mostly
cellulose, consisting of a long chain of glucose rings. If
these is not dried, the insulation performance deteriorates,
thus reducing the electrical and mechanical strength ofthe transformer.
In LFH process, HV & LV windings are uniformly heated
from the inside by applying a low frequency current
at low voltage levels from the HV side, keeping the LV
windings is shorted. At low frequency (0.4 – 2 Hz) and low
impedance, the HV and LV windings can heat up to typical
drying temperatures of 110 – 120 °C.
The process itself consists of 3 main phases:
n PHASE I – LF-HEATING AND PRE-VACUUM DRYINGEvacuation and LF-Heating can start simultaneously.
Target is to achieve the temperature homogenization
of all windings during this phase; additional time might
be allowed for further homogenization with LF-heating
system still activated. Condensation of moisture at non
heated parts of the transformers will be prevented by the
use of pre-heated / dried air during the process.
n PHASE II – DRYING
LF-Heating is disconnected automatically and the vacuum
pressure in the autoclave will be reduced to a level below
2mbar. The temperatures of the windings are maintainedwithin a dened tolerance at the set values during the
process. If during a dened time a dened pressure drop
is not exceeded above the values the drying phase is
nished and the oil-lling process is started automatically.
n PHASE III – OIL FILLING
Oil-lling is started automatically / alternatively by
pressing a button after the drying parameters have been
reached successfully. The already programmed electropneumatically powered lling valves are opened for the
lling process. During the oil-lling process, a dened
vacuum level between 0,5 mbar and 2 mbar will be
maintained. The average oil lling speed is controlled by
the control system of the oil purication equipment. The oil
lling process will stop automatically at every transformer
by means of level switches. The vacuum level will be kept
constant for about 15 minutes after the oil lling process
is nished. Once lling process is completed the aeration
valve will open automatically. When reaching atmospheric
pressure the bell-shaped vacuum chamber may be
opened for unloading.
The benet of LFH process over conventional heating
process:
n The quality of transformer insulation is vastly improved
by using LF heating as a drying method compared to
the more conventional hot air vacuum system.
n This means processing time is considerably shorter
compare to conventional drying techniques.
n LF heating is the state of the art process of drying
transformer insulation.
n It is almost twice as efcient when compared withconventional drying systems.
n This system is faster and better than conventional hot
oil and vacuum drying methods and its cuts energy
costs by half and speeds up the production process.
Principle setup of LFH equipment.1
Vacuum pump gr oup
Vacuum chamber
Power supply
3x400 (50HZ)
LF-conver ters
LF
P
HF
Main controlsystem with
control cabinet
and computer
Transformers with
shorted LV windingsLF
HF
P
L L L L L
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Testing Capabilities
For conrming the specications and performances of anelectrical transformer it has to go through the testing pro-
cedures and international standards. Mainly three types of
transformer testing are done at manufacturer premises -routine test, type test & Special test of transformer. Routinetests of transformer are mainly for conrming operationalperformance of individual unit in a production lot. Routine
tests are carried out on every unit manufactured. To provethat the transformer meets customer’s specications and
design expectations, the transformer has to go throughdifferent testing procedures in manufacturer premises.Some transformer tests are carried out for conrming the
basic design expectation of that transformer. These testsare done mainly in a prototype unit not in all manufactured
units in a lot. Type test of transformer conrms main andbasic design criteria of a production lot.
Test Field Capabilities
n Most adavce and fully equipped testing laboratory hav-ing facility for all routine,type and special tests of oil
type and dry type distrubution transformer as per Inter-national standards
n Routine test and type test facility for pre-fabricated
pacakge substation consist of transformer, MV switchgear and LV panel
n All test instruments and equipments are connected toPLC base operated system via central server as a mas-ter controller.
n Fully automatic PLC based software operated testinglaboratory without any human intervention in test resultmeasuring, recording and analysis for acceptance
n Lightening Impulse test with chopped wave facility to
BIL 300KV peak.n Sheilded PD cabin constructed for Partial Discharge
measurement.
n Seperate AC generators to generates constant powerfrequency supply whlie measurement
n Facility to excute nal testing with two seperate testingbays i.e. RT Area and ST Area.
Tests to be performed (As per International standards i.e.
IEC60076 or ANSI)n Measurement of the winding resistance
T e s t i n g & S e r vi c
e s
7/25/2019 Transtech Catalog
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n Measurement of voltage ratio and Checking of phasedisplacement
n Measurement of insulation resistance
n Measurement of short-circuit Impedance and Load lossn The measurement of no-load loss and no-load current
n Separate source AC voltage withstand testn Induced AC voltage test
n CT Ratio and Polarity Tests
n Lightning impulse tests (full- and chopped-wave) onMV windings
n Temperature rise test (to be performed at highest cur-rent rating tap)
n Determination of sound levelsn Zero Sequence Impedance measurement
n Measurement of Harmonics of the no load currentn Induced over voltage withstand test with partial dis-
charge measurement
n Oil Breakdown Voltage (BDV) test
High Range of testing Equipment and Instruments
n Haefelyn Tettex
n Megger
n Norma/Fluken ABB
n Dignosticsn Leroy Somer
n Hipotronics
n Siemens Hu
Test witness by third party
n CESI, Italy
n KEMA, Netherland
n ATSA,UKn BVQI,UAEn TUV
n AECOM
Transformer service
Aging assets, rising energy demand and the critical need
to avoid unplanned outages, are challenging utilities and
industries. Transtech service portfolio allows utilities and
industrials to maximize the return on transformer assets
by ensuring a high reliability, reducing life cycle costs andensuring optimized performance, while lowering environ-
mental impact.
Transtech provides services throughout the transformer
life cycle, from commissioning to recycling, for all brands
of transformers.
Service includes the following
n Supervision on Installation and Commissioning
n Oil analysis and ltration
n Maintenance or Refurbishment.
n Repairs
n Spares and consumable.
n Training
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M a j or C u s t om e r
Utilties Industries Oil & Gas EPC
Abu Dhabi DistributionCompany (ADDC)
Emirate Aluminum(EMAL)
Abu Dhabi Company forOnshore Oil Operation (ADCO)
Samsung
Al Ain DistributionCompany (AADC)
Super Cements Esnaad Larsen & Toubro (L&T)
Dubai Electric and water Authority (DEWA)
JK Cements Qatar Gas Punj Lloyd (PLL)
Federal Electric andWater Authority (FEWA)
Al Jaber FERTIL Engineering Solution (ENGSOL)
Ministry of Electricity(MOE), Iraq
Bin HafeezBahrain Petroleum Company(BAPCO)
TRISTAR
Kahramaa GARMCO Saif Bin Darwish
TRANSCO Voltas
Space Age
SREC
Trojan
National Contracting Company (NCC)
National Project and Construction (NPC)
Siemens LLC
Scientechnic
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I S O
& E H S M S C e r t .
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S. No.Power Rang Voltage
Cercate No. Cercaon Agency Tank Construcon(kVA) (kV)
Oil Type Transformers
1 1000kVA
22kV
18940 ASTA
Corrugated Tank
2 500kVA 18726 ASTA
2 2000kVA A9030609 CESI
3 1500kVA B0033628 CESI
4 1500kVA 33kV 18941 ASTA
5 1000kVA
11kV
18475 ASTA
6 1600kVA 18474 ASTA
7 1000kVA 18656 ASTA
Radiator Type8 1600kVA 18657 ASTA
9 1250kVA TIC 2060-12 KEMA
10 1500kVA B0001743 CESI
Corrugated Tank11 1000kVA A9036863 CESI
12 500kVA A9007545 CESI
13 200kVA (PMT) B0001838 CESI
Dry Type Transformers
1 500 KVA
11kV
18693A ASTA
2 1000kVA B0024416 CESI
3 1500kVA B0024415 CESI
3 1500 KVA22kV
18694A ASTA
4 2000kVA B0031101 CESI
Hilton House, Corporation StreetRugby, WarwickshireCV21 2DN, United Kingdom
Telephone: +44 1788 578435Facsimile: +44 1788 573605www.intertek.com
Intertek Testing &Certification Ltd,Registered office:25 Savile Row,London, W1S 2ES, United KingdomRegistered No:3272281 (England),VATNo: GB672-7639-96-011.
Laboratory Ref: 45666/1 ISSUE 3
DECLARATION OF TYPE TESTING FOR ASTA CERTIFICATION
MANUFACTURER: Siemens Transformer LLC, P.O.Box.128488, ICAD II Mussafah, Abu Dhabi, UAE
TESTED FOR: Kahramaa, Qatar General Electricity & Water Corporation, Qatar
APPARATUS: Three phase, 1000kVA, 11/0.433kV, Mineral oil immersed, hermetically sealed,
transformer, Category 1, %Z - 5.45% , Vector Group: Dyn11, ±5% tappings, LI/AC:75/28, Temp rise (oil / wdg): 45 / 50, Outline drawing: 711100156
DESIGNATION: 6100000054
TESTED BY: Electrical Research & Development AssociationERDA Road, Makarpura Industrial Estate, Vadodara-390 010, Gujarat, INDIA
DATES OF TESTS: 6th to 12th December 2011
SPECIFICATIONS: IEC 60076-1: 2011-04 Edition 3.0, IEC 60076-2: 2011-02 Edition 3.0, IEC 60076-3:2000 with corrigendum 1, IEC 60076-5: 2006 & IEC 60076-10: 2005
TESTS CARRIED OUT:
Routine Tests IEC 60076-1: 2011-04 Edition 3.0 Clause 11.1.2
Rated Power (Temperature Rise Test) : 1000kVA IEC 60076-2: 2011-02 Edition 3.0 Clause 7
Rated Insulation level : LI75 / AC 28 / AC 3 IEC 60076-3: 2000 Clause 11, 12, 13 and 14
Ability to Withstand Short-circuit IEC 60076-5: 2006
Sound Pressure Level : 33.3 dB IEC 60076-10: 2005 Clause 11Determination of capacitances windings-to-earth &between windings. IEC 60076-1: 2011-04 Edition 3.0
Measurement of dissipation factor (tan δ) of theinsulation system capacitances. IEC 60076-1: 2011-04 Edition 3.0
Performance:
The Test Results & the performance of the Transformer was considered satisfactory & subject to final
analysis of the tests & scrutiny by Intertek Testing & Certification Ltd., an ASTA CERTIFICATE will be
issued in respect to these tests.
Mrs. Rajani MenonType Test Project Manager- ASTA CertificationEmail: rajani.menon@intertek.com,Phone: 0044 1788 820161
To,Siemens Transformer LLC, P.O.Box.128488ICAD II Mussafah, Abu Dhabi, UAE
20 December 2011
Page 1 of 1
KEMA Nederland B.V. Utrechtseweg 310, 6812 AR Arnhem P .O. Box 9035, 6800 ET Arnhem The Netherlands
T+31 26 3 56 91 11 F +31 26 3 89 24 77 contact@kema.com www.kema.com Registered Arnhem 09080262
To whom it may concern Your ref.
Our ref. 72110586.Q.1
Tel. +31 26 356 2670
Fax +31 26 351 1468
E-mail Rene.bruil@dnvkema.com
Arnhem,June 25, 2012
Subject:Declaration
We herewith declare that we have tested in June 2012, a three-phase, oil-immersed type
distribution transformer, with serial no. S03572.
The transformer was rated: 1250 kVA, 11 ± 2 x 2,5% kV / 0,433 kV, 50 Hz, connection
symbol Dyn11, impedance voltage 6,32%, type of cooling ONAN.
The transformer was manufactured by Siemens Transformers LLC., Abu Dhabi, United Arab
Emirates.
The transformer has passed:
− Routine tests before and after short-circuit tests
− Dielectric Performance test
− Temperature rise test
− 9 asymmetrical short-circuit tests with a current duration of 0,5 s
− 3 symmetrical short-circuit test with a current duration of 3,0 s at tap no 3.
− Determination of sound levels
The out-of-tank inspection with respect to displacements, deformations of core and
windings, connections or traces of discharges did not reveal any apparent defects.
T y p e T e s t C e r t i f c
a t e s
7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 18/2018 Under the Technical license of Siemens AG, Germany
S I E M E N S C E R T I F I C A T E
7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 19/2019Under the Technical license of Siemens AG, Germany
P E R F OR MA N C E L E T T E R
7/25/2019 Transtech Catalog
http://slidepdf.com/reader/full/transtech-catalog 20/20
Transtech TransformersLLC
ICAD II
Mussafah
Abu Dhabi, UAE,
P.O.Box: 128488
Phone: +971 2 550 2062
Fax: +971 2 550 2068
All rights reserved.
Trademarks mentioned in this document are the property of TRANSTECH Transformers L.L.C.
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 specied in the contract.
Publication Date Jan. 2014
www.transtech-ad.ae
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