35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer

Product Details
Customization: Available
Application: Power
Phase: Three

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Number of Employees
26
Year of Establishment
2007-11-07
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Basic Info.

Model NO.
S11-12500/35
Cooling Method
Oil-immersed Type Transformer
Winding Type
Two-winding Transformer
Certification
ISO9001-2000, ISO9001
Usage
Power Transformer
Frequency Characteristics
Power Frequency
Shape of Core
Kou Type
Brand
Eacher
Service Condition
Indoor/Outdoor
Tap Changer
Nltc/Oltc
Cooling Type
Ofwf/Onan
Core Structure
Toroidal
High Voltage Range
35-38.5kv
Iron Core
Silicon Sheet
Loss
Low Loss
Transport Package
Sea Worthy Packing
Specification
CE, ISO, IEC, GB, ANSI
Trademark
EACHER
Origin
Jiangshan City, Zhejiang Province, China
Production Capacity
6000sets Per Year

Product Description

35kv 12500kva three phase two winding no load tap changing oil immersed power transformer

Specifications
1 power transformer
2 ISO9001,ISO14001,OHSAS 18001, CE
3 Apply for IEC, ANSI
4.KEMA

Introduction to Products
The performances of our S9,S10,S11 series 20KV and 35KV three-phase oil-immersed  transformer conform to standards GB1094-1996 "Power Transformer" and GB/T6451-2008 "Technical Parameters and Requirements of Three-phase Oil-immersed Power Transformer". Its core is made of quality cold-rolled silicon sheet and is of a full-miter non-puncture structure and its coil is made of quality oxygen-free copper. It is artistic in appearance and sage in running and is widely used in transmission and distribution of industrial and agricultural networks.

Main Function and Features

High reliabity,advanced levelof performance,reasonable economical indicators
The core joints are of stepped shape with 3 steps,and the surface of the core is coated with cured paint to lower losses and noise.
The winding has novel structure and its oil passage is reasonable designed. Its newly designed insulation structure helps enhance its mechanical strength and the short circuit withstanding ability
The oil tank is in various types,all have good outlook.

Main Technical Parameters for 35kv level,S9,S10,S11 series power transformer
           
Rated Power High Voltage H.V.Tap rang Low Voltage Connection Symbol Short-Circuit Impedance(%) No-load Loss(KW) On-Load Loss(KW) No-load Current(%)
KV KV KV 9type 10type 11type 9type 10type 11type
800 35               38.5 ±5%       ±2×2.5% 6.3               6.6                                    10                          10.5 Yd11 6.5 1250 1110 980 9900 9350 9350 1.05
1000 1490 1320 1160 12200 11500 11500 1
1250 1760 1570 1380 14650 13900 13900 0.9
1600 2130 1900 1660 17650 16600 16600 0.85
2000 2610 2320 2030 19350 18300 18300 0.75
2500 3150 2800 2450 20700 19600 19600 0.75
3150 7 3870 3440 3010 24300 23000 23000 0.7
4000 4640 4120 3610 28800 27200 27200 0.7
5000 5490 4880 4270 33000 31200 31200 0.6
6300 7.5 6570 5840 5110 36900 34900 34900 0.6
8000 Ynd11 9000 8000 7000 40500 38300 38300 0.55
10000 10620 9440 8260 47700 45100 45100 0.55
12500 8 12600 11200 10800 56700 53600 53600 0.5
16000 15300 13600 11900 69300 65500 65500 0.5
20000 18090 16100 14100 83700 79100 79100 0.5
25000 21510 19120 16730 99000 93500 93500 0.4
31500 25650 22800 20000 1E+05 112200 112200 0.4
Certifications
35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer

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
35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer
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.

35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer
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.

35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer
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

35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer
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
35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer



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 .
35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer
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

35kv 12500kVA Three Phase Two Winding Oil Immersed Power Transformer

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 ? 
 
   A:
Depend on the type of transformer.
 
3,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.
 
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.
 
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.
 
6,Q:
Do you accept Factory Acceptance Test?
 
   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?
 
   A:
Yes. For our products,we all provide after-sale installation instructions service
 
 

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