25MVA /220KV Power Transformer with Oil Tank OLTC
Product Features
1. Long life cycle
2. Hign insulation level
3. Oil leak proof design
4. Excellent control for cooling
5. Reasonabkle accessories selection
6. Strong short circuit withstand ability
7. Low loss, Low noise, Free maintenance
Advanced Design
1. Adopting the art standard three dimesion design software to produce correct and complete engineering documentation.
2. Adopting the craft of high frequency -welding and winding-Hydraulic compaction to improve short circuit ability.
3. Adopting the craft of core Hydraulic compaction to improve the strength of core for reducing the noise level.
4. Designing the transformer base on the worst short circuit conditions for avoiding short circuit issue.
5. Adopting Electric Stress field calculation program to guarentee insulation level.
6. Adopting high quality rubber gaskets in groove for leak.
Quality Assurance
1. Adopting the Quality Control Verification Card to control quality in the whole manufacturing operations.
2. Strictly selecting the transformer raw material and the suppliers of accessories in domestic and abroad.
3. All transformers get authentication of ISO9001, ISO14001, OHSAS18001 AND CE.
4. Comprehensive Training for workes and staffs to improve service quality.
Project Reference
1. 220kV power transformer Substation in United States.
2. Auto-transformer150MVA/138KV Power Substation in Ecuador
3. Power traformer 50000kVA 60kV installing in Peru
4 .....
Transformer Catalogue
Transformer Description Specifications
66 kV Three-phase two windings power transformer with OLTC
66 kV Three-phase two windings power transformer with OCTC
110 kV Three-phase two windings power transformer with OCTC
110 kV Three-phase two windings power transformer with OLTC
110 kV Three-phase Three windings power transformer with OCTC
220 kV Three-phase two windings power transformer with OCTC
220 kV Three-phase two windings power transformer with OLTC
220 kV Three-phase Three windings power transformer with OLTC
Parameter base on IEC standard, more details Kindly contact with us
Shenda Electic Group Co., Ltd
Shenda ( In full: Shenda Electric Group Co.,Ltd.) is one of the leading manufacturers in the power transmission & distribution industry. Founded in 2000 and currently employs about 1,100 employees worldwide. Shenda operates three factories (two in China and one in the United States of America - R. E. Uptegraff Manufacturing Company, LLC of Pennsylvania, U.S.A.). Shenda also owns other ten subsidiaries throughout China. The annual gross sales is USD$250 million in 2015.
Shenda's annual total production capacity is about 18,000,000 KVA, Our main products include oil immersed power transformer(up to 250MVA/ 330kV) , dry type transformer(up to 20MVA/35kV), combined transformer substation, amorphous alloy transformer, rectifier transformer (100MVA/220kV )and especially furnace transformer(180MVA/220kV). Our products' performance measures up to the standards established by International Electric Committee (IEC).
All of Shenda transformers' parts' manufacturing must put quality management system: ISO 9001:2008 Into practice, and only those transformers that have successfully passed all the comprehensive tests will then go into practical application. Additional Shenda Electric's products have obtained Short circuit test report from CESI Italy, Type test report from KEMA Netherlands, V-check certificate from KESCO Korea, etc.
Owing to our good reputation on quality and service, our products have been sold well not only throughout China, but also exported to more than 60 overseas countries and regions
Today Shenda is one of the largest supplier of furnace transformer to the steel industry and the largest supplier of power transformer in Ecuador.
SHENDA has formed its own technology characteristics by absorbing and assimilating advanced technology, the iron adopts the advanced 45o total -oblique connecting seam, upper iron yoke non-folding to reduce the no-load loss; adopt advanced core column tightening device to reduce the noise further; the winding adopt combined lead and transposition lead to reduce the additional loss; calculation accurately the impulse features of electric filed and winding to ensure the excellent electric property and impulse intensity.
Short circuit test report-100MVA/220KV
Type test report - 50MVA/69kV Power transformer
FAQ:
1.Q: Are you manufacturer?
A: Yes, we are manufacturer. Our factory is in Guangzhou City, Guangdong Province.
2.Q: Can I get guarantee of products?
A: Yes, every product is 1 year quality warrantee under customer correct using the products.
3.Q: Do you have any Certificate?
A: Yes. Each of our unit has CE, 3C and KEMA certificate. If you need any other Certificate, we can help you to apply it.
4.Q: How can I pay you?
A: Pay by T/T and L/C is acceptable.
5.Q: What about the production?
A: In general, it take 4~6weeks and it depend on the different style.
Any need for power transformer, please feel free to contact us:
Lluvia | Oversea sales | Oversea Dept.
Shenda Electic Group Co., L
Transformer accessories
On load voltage regulating switch imported from MR,USA
No load voltage regulating switch imported from ABB, USA
High pressure casing imported from PCORE USA
Canadian PCORE low pressure casing
Certifications
Certificates owned by shenda:
100MVA/220kv power transformer short circuit test report
-issued by CESI Italy&CTQC China
120MVA/33KV oil EAF transformer
50MVA/69KV oil power transformer
10MVA/33kv dry-type transformer
Type test report
-issued by KEMA Netherlands
63MVA/110KV Power transformer short circuit test report
-issued by CTQC China
12.5MVA/22KV Rectifier transformer routine test
-issued by V-Check korea
ISO 9001&ISO14001&OHSAS 18001
CE-POWER TRANSFORMER&FURNACE TRANSFORMER&DRY-TYPE TRANSFORMER&REACTOR
Transformer Characteristics
Winding .
The winding must be especially protected - both against high electrical stress due to
external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while
high voltage windings are manufactured from round or profile wire. ("diamond-dotted paper") bonds the winding into a compact block
while drying and increases the short-circuit capacity additionally.
Magnetic Core lamination.
The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides,
guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a
flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise.
Oil tank.
Whether during transport or operation -the tank must be absolutely tight under mechanical stress. We have vast constructional experience, the most modern calculation methods and high-quality welding work. Special attention is paid to
corrosion protection. Pretreatment of the surface is processed by phosphating pickling, contributes to corrosion protection, just
like multi-coating with preset drying times for each layer. On request, hot-dip galvanization provides for even better protection
Test lab
Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test.
A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers
a- Measurement of winding resistance .
b- Measurement of voltage ratio and check of phase displacement.
c- Measurement of short circuit impedance and load losses.
d-Measurement of no-load losses and current .
e-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) .
B - Type tests :
The following tests shall be carried out
a- Temperature rise test
b- Lightning impulse test
C - Special tests :
a- Determination of noise level according to IEC 60551 .
b- Oil leakage test
c- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) .
d- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted).
Packaging and transportation
Company Introduction
SHENDA electric group is a manufacturer and wholesale company that manufactures good & high quality electric transformers from 2000. The company provides the customized products and OEM service. The factory own the 3 production base worldwide,2 in China and 1 in USA.We also own a transformer research institute with more than 30 electric engineers .
Our Services
1. Pre-Sale Service
- Quick response: reply you within 8 hours, to save your time.
- Professional solution: supply professional completed solution base on your technical requirements, to complete your technical plan.
- Quoataion: submit a competive price within 2 days, to promote your business
2. In Sale Service
- Supplying stipulated completed drawings
- Supplying manufacturing plan and processing photos
- Making the test plan and book hotel for the witness person
- Making good arrangement of the delivery and shipment
3. Afer Sale Service
- Supplying professional supervision and commissioning within 15 days
- Training the workers
- Providing 12 months waranty of quality and perforance
RFQ
| 1,Q: |
Are you manufacturer?
|
| A: |
Yes, we are manufacturer. Our factory is in JiangShan City, zhejiang Province.
|
| 2,Q: |
What is your delivery time ?
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| A: |
Depend on the type of transformer.
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| 3,Q: |
What is your payment term?
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| A: |
30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it.
|
| 4,Q: |
Are your transformers supported for customization ?
|
| A: |
Yes, of course. We can design and produce accroding to the technical requirements and parameters of customers.
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| 5,Q: |
Do you offer guarantee for the products?
|
| A: |
Yes. Different transformers is different. We offer at least one year guarantee for all of our transformers.
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| 6,Q: |
Do you accept Factory Acceptance Test?
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| A: |
Yes. It's available. And we are responsible for each set transformer's testing (ICE).
|
| 7,Q: |
Do you assign engineer for after-sale service?
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| A: |
Yes. For our products,we all provide after-sale installation instructions service
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