Product Specifications
| Prod Model: |
SF11-20000/66 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Coil Number: |
Other |
| Coil Structure: |
Toroidal |
| Packaging Details: |
Sea Worthy Packing |
| Tap Changer: |
Oltc |
| Certificates: |
Ctqc, CE, ISO9001, ISO14001, Cesi |
| Phase: |
Three |
| Coil: |
Core-type Transformer |
| Cooling Method: |
Dry-type Transformer |
| Winding Type: |
Separated Winding Transformer |
| Application: |
Audio |
Product Description
Specifications
66kv series Power Transf. 1) CTQC, ISO9001, ISO14001, CE 2) Apply for IEC, GB, ANSI 3) Up to 230kV, 180MVA 4) Low losses
General
EACHER brand 220kv 110kv and 66kv low-loss series transformer is our independently developed new generation of transformers on the basis of absorption of domestic and foreign advanced technology, which feature low local discharge, low loss, low noise, high reliability, strange protection against abrupt short circuit. Its excellent performance has been recognized by wide users and highly appraised by experts. The full-sealed suspending-cover free products sell well nationwide.
1)Amount of local discharged: The apparent discharge amount is less than 80pC under the 1.5 times of rated voltage;
2)Noise: Products of 63MVA and below is lower than 58dB(AN);
3)Power loss: No-load loss is 30% lower than that of IEC standard;
4)Reliability: All in-service product have no damages or oil leakage occurred;
5)Short circuit withstanding: Model SFZ11-50000/132 smoothly passed the short-circuit withstanding test of the national transformer quality supervision and inspection center and also passed Holland "KEMA" quality Control system.
Coil
The high-voltage(HV) coil adopts an interleaved-continuous structure to improve the voltage characteristics under impact voltage and make voltage evenly distributed. All stays and pads are chamfered to keep highly reliable insulation.
In the transformer winding there is a zigzag oil guide structure so as to fully cool all areas inside the winding, lower the temperature rise of the winding and the hot points of the winding and prolong the service life of insulation. The HV and MV regulation system are independently provided with voltage-regulating winding to balance the ampere turn of each winding-up, effectively lower the axial electrodynamic force generated at short-circuit of transformer and improve abrupt short-circuit withstanding capacity.
The winding adopts radial "0" margin designed, between the core and the paper sleeve of LV winding, and between the LV, HV, voltage-regulating windings, as well as before insertion of stays and shroud plate they are fully dried and tightly matched to ensure extremely good compactness and concentricity of the entire winding.
Core
The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with advanced Germany Geoge GmbH automatic shear line with the cut burrs controlled within 0.02mm.
The silicon sheet fabrication adopts "no-upper yoke-lapped' technology and all lapped joints of the silicon sheet are 45 full-miters. The laminated core sheets are integrally pressed and adhered with epoxy resin to make the three leg two-yoke core a strong and flat integral one with good verticality precision, this effectively improves no-load performance and reduces noises.
Bracing plates are used as support between coil leg and inner coil. The iron yoke is tied with epoxy resin-impregnated glass fiber band, and the lower section of oil tank is tightened with counter-pressure bolts. The upper iron and the upper section of oil bank are fixed at this locations. Hence the body inside the oil tank can withstand the vibration during transportation without any shifting.
|
Rated power (kVA) |
H.V (kV) |
H.V. Tap range |
L.V (kV) |
Vector Group |
Impedance (%) |
No-load Loss (kW) |
On-load Loss (kW) |
No-load Current (%) |
Oil Weight (kg) |
Total weight (kg) |
Overall dimension (mm) |
|
800 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
1.06 |
9.98 |
1.05 |
1650 |
4790 |
2870*1810*2570 |
|
1000 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
1.26 |
12.16 |
1 |
1760 |
5210 |
3150*1890*2650 |
|
1250 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
1.49 |
14.63 |
0.9 |
2010 |
6080 |
3510*2040*2690 |
|
1600 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
1.8 |
17.58 |
0.85 |
1920 |
6610 |
3560*2070*2740 |
|
2000 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
2.3 |
19.24 |
0.8 |
2160 |
7440 |
3680*2050*2850 |
|
2500 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
6.5 |
2.72 |
20.64 |
0.8 |
2580 |
8240 |
3780*2220*2890 |
|
3150 |
35/38.5 |
±3*2.5% |
6.3 |
Yd11 or YNd11 |
7 |
3.23 |
24.71 |
0.72 |
2680 |
8540 |
3850*2310*2950 |
|
4000 |
35/38.5 |
±3*2.5% |
6.6 |
Yd11 or YNd11 |
7 |
3.87 |
29.16 |
0.72 |
2960 |
11180 |
4120*2380*3150 |
|
5000 |
35/38.5 |
±3*2.5% |
10 |
Yd11 or YNd11 |
7 |
4.64 |
34.2 |
0.68 |
3050 |
12480 |
4210*2510*3220 |
|
6300 |
35/38.5 |
±3*2.5% |
10.5 |
Yd11 or YNd11 |
7.5 |
5.63 |
36.77 |
0.68 |
4050 |
15900 |
4320*3000*3290 |
|
8000 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
7.5 |
7.87 |
40.61 |
0.6 |
4200 |
17130 |
4500*3100*3680 |
|
10000 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
7.5 |
9.28 |
48.05 |
0.6 |
7480 |
25230 |
4560*3500*3750 |
|
12500 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
8 |
10.94 |
56.86 |
0.56 |
8010 |
27000 |
4590*3580*3830 |
|
16000 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
8 |
13.17 |
70.32 |
0.54 |
8560 |
32500 |
4650*3700*4000 |
|
20000 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
8 |
15.57 |
82.78 |
0.54 |
10030 |
37770 |
5200*4200*4280 |
|
25000 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
8 |
18.96 |
101.65 |
0.5 |
12300 |
42600 |
5320*4350*4340 |
|
31500 |
35/38.5 |
±3*2.5% |
11 |
Yd11 or YNd11 |
8 |
22 |
119.7 |
0.45 |
13500 |
51100 |
5450*4420*4450 |
|
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Shenda International Engineering Co., Ltd. is a professional player in transformer industry, which established in Oct. 2000, located in Zhejiang province of China, holds two production bases and seven sales companies. We always focus on the R&D, have been appointed as a manufacturer of transformers at 330KV levels and below by National Electric Power Corp and Mechanical Industry Union. "EACHER" has been awarded "Famous Brand of Zhejiang Province".
Our annual total production capacity is about 18, 000, 000 kVA, our factory covers an area of 370, 000 square meters and a building area of 100, 000 square meters, with total assets of 350 million CNY and more than 1000 staff members with engineering and technical employees accounting for 21%.
Our main products include 330kV and below&200MVA and below oil immersed power transformers, 110kV and below furnace transformers, 110kV and below rectifier transformers, 35kV dry type transformers, 35kV combined transformer substation, 35kV and below amorphous alloy transformer, 35kV and below reactor etc. All of our products' performance measures up to the standards established by International Electric Committee (IEC).
We have imported many advanced production and testing facilities from Germany and Japan, such as silicon sheet shearing automatic lines, automatic and continuous extrusion lines of electromagnetic wires, Kerosene vapor vacuum drying systems and more than 1, 500 sets of production and complete testing systems for professional transformer production and other testing equipment. We can meet the requirements of customers completely.
There are type test report of CESI Short Circuit Test Report 100MVA/220KV and KEMA Test Report-50MVA/69kV in our company
