1. General (1)Application:
12, 24,36KV~220kv class transformers are widely used in power transmission and distribution stations,industry
,
plants, Generation Setup Unit (GSU). They have the characteristic of high efficiency, low loss and maintenance
free.
(2)Type and Rating
Capacity range :50-50000KVA.
Secondary voltage: 415V ,400V etc.
Frequency :50Hz ,60Hz.
Type: Single phase ,three phase.
No-load tap changer and on-load tap changer.
ONAN and ONAF.
Set-up and set-down type.
(3)Standard: IEC60076-1, IEC60076-2, IEC60076-5, IEC60317, ANSI, IEEE, AS, etc.
2.Conditions of service(1)Altitude: Up to 1,000m above sea level.
(2)Ambient temperature: Max: +40ºC.
Average (daily, Max.): +30ºC.
Average (yearly, Max.): +20ºC. Min: -45ºC.
(3)Environment:Outdoor. (4)Special conditions:
It may be consulted between manufacturer and customer.
3.Structural Features(1)Iron core
The iron core is made of cold rolled grain oriented silicon steel sheet. Laminations are cut to length onGEORG
cut to- length line with steplap cut and automatic stacking functions.
The multistep lamination structure can reduce the loss and noise .
The steel sheet in the core limbs and yokes are clamped together by glass-epoxy bonds.
(2)Winding
High quality enameled or paper covered copper is used as conductor, the winding was made as drum type,
spiral type, improved spiral type, continuous type and interleaved type to ensure the insulation strength.
Standard tapings are ±2*2.5%of the HV winding.
(3)Tank
The tank, cover and the conservator are made by corrugated steel plate .For the small transformers,we use a
deep tank and a cover, but for larger transformers, we manufacture bell type .The corrugated construction are
a effective way for oil cooling.
(4)Insulation oil
The tanks are filled with high quality grade mineral oil as per IEC296 and it is PCB and PCT free.
The oil is used to help cooling the transformer. It is also used provide part of the electrical insulation between
internal live parts. (5)Tap changer
Tap changers are used to regulate the output voltage of the transformers to required levels .We
achieve this
by changing the ratios of the transformer on the system by altering the number of turns in the HV winding .Tap
changers can be on load (OLTC)
or off load(OCTC). (6)Assembly
The core and the windings assembled together from the active part of the transformer. The active body
assembled with multi-windings and identical pressure dry method adopted, effectively improved the
electrical strength and the ability to short circuit withstanding.
4.Test equipmentStrict test should be done according to IEC standard, by high technical equipments to ensure the quality and
the reliable of every transformer. 5.Technical
parameters:ODFS-334000/500 CURRENT RATE: 1145.5/2515.2/2500A
VOLTAGE RATE: 505 IAOiO OUTDOOR 50Hz CURRENT RATE:
1145.5/2515.2/2500A VOLTAGE RATE: 505 √ 3(230/∨ 3 + -2X2.5%)/36KV
IAOiO OUTDOOR 50Hz Rated Capacity: 334000/334000/90000KVA Cooling
method: ONAN/ONAF (70%-100%) 6.Reference:Our Services1.Pre sale
servicea.make technical solutionb.send quotation, technical data
sheet and drawingc.prepare power transmission plan, testing
plan,and shipment plan2.In sale servicea.supervise the
manufacturing schedule totally in accordance with the planb.send
photos to customer during every manufacturing process(hold
point)c.inform the customer one week before testinng.3.After sale
servicea.installation and commissioning, training the
workersb.quick response within 12 hours any timec.provide 12 months
gurantee period normally.FAQ1. Q:What is your delivery time
?A: Depend on the type of transformer.2. Q:What is your
payment term?A: 30% advance by T/T , 70% before delivery by
T/T or L/C or we can discuss about it.3. Q:What kind of starndard
you follow?A: IEC, ANSI, CSA, GB, etc4. Q:What kind of
supporting documentation you can provide
normallyA: Quotation,outline drawing,manufacturing plan,
quality control plantesting plan, financial report, type test
report(KEMA, CESI),reference list,etc5. Q:What is your normal
wanrranty period?A: 12 months after transformer operation.6.
Q:Can u do installation and commissioningin user's
site?A: Yes, we can send our installation team to user's
country for service.7. Q:Do you have any experience in this kind of
transformer?A: Yes, we can provide reference list for check.8.
Q:Are you manufacturer or trading company?A: Manufacturer with
own import & export company.Our advantages:Quality Assurance --From
the very beginning, VILLE ensures quality in every step
to achieve the best quality. Experience Sharing --With more
than 30 years' experience in power industry, VILLE brings
you an optimized solution. Global Service --Wherever you
are, VILLE global network will support and provide you
with value. Quick Response --In response to your needs
without delay, VILLE knows the value of your time.
Thanks for choosing VILLE as your re
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