35KV Three-phase oil immersed transformer
NINGBO TIANAN (GROUP) CO., LTD.
1. General
(1) Application:
>> 12, 24,36KV 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 equipment
Strict test should be done according to IEC standard, by high technical equipments to ensure the
quality and the reliable of every transformer.
5. Technical Data of Typical Products
>S9, S10 series 10KV three phase off -load tap changer distribution transformer
| Type | Rating
KVA | On-load
loss
(w) | Load
loss
(w) | I
(%) | UK
(%) | Dimension (mm) | Weight
(kg) |
| a | b | c |
| S9-M-50/11 | 50 | 170 | 870 | 2.0 | 4.0 | 1215 | 660 | 1170 | 430 |
| S9-M-250/11 | 250 | 560 | 3050 | 1.2 | 4.0 | 1190 | 815 | 1370 | 1115 |
| S9-M-400/11 | 400 | 800 | 4300 | 1.0 | 4.0 | 1515 | 770 | 1580 | 1380 |
| S9-M-500/11 | 500 | 960 | 5050 | 1.0 | 4.0 | 1635 | 840 | 1610 | 1600 |
| S9-M-1000/11 | 1000 | 1700 | 10300 | 0.7 | 4.5 | 1960 | 1095 | 1960 | 2860 |
| S9-M-2500/11 | 2500 | 3300 | 23000 | 0.55 | 5.5 | 2230 | 2305 | 2445 | 5660 |
| S10-M-30/10 | 30 | 110 | 600 | 1.8 | 4.0 | 870 | 645 | 1025 | 310 |
| S10-M-50/10 | 50 | 140 | 870 | 1.7 | 4.0 | 1090 | 650 | 1080 | 395 |
| S10-M-80/10 | 80 | 200 | 1250 | 1.6 | 4.0 | 1140 | 675 | 1110 | 490 |
| S10-M-100/10 | 100 | 240 | 1500 | 1.5 | 4.0 | 1185 | 690 | 1130 | 560 |
| S10-M-125/10 | 125 | 280 | 1800 | 1.4 | 4.0 | 1205 | 710 | 1180 | 670 |
| S10-M-160/10 | 160 | 340 | 2200 | 1.3 | 4.0 | 1255 | 720 | 1200 | 780 |
| S10-M-200/10 | 200 | 400 | 2600 | 1.2 | 4.0 | 1295 | 740 | 1215 | 875 |
| S10-M-250/10 | 250 | 470 | 3050 | 1.1 | 4.0 | 1340 | 755 | 1260 | 1115 |
| S10-M-315/10 | 315 | 560 | 3650 | 1.0 | 4.0 | 1400 | 770 | 1320 | 1280 |
| S10-M-400/10 | 400 | 680 | 4300 | 0.9 | 4.0 | 1500 | 860 | 1400 | 1490 |
| S10-M-500/10 | 500 | 810 | 5150 | 0.9 | 4.0 | 1575 | 895 | 1430 | 1740 |
| S10-M-630/10 | 630 | 1020 | 6200 | 0.8 | 4.5 | 1660 | 930 | 1545 | 2110 |
| S10-M-800/10 | 800 | 1190 | 7500 | 0.7 | 4.5 | 1830 | 1070 | 1590 | 2625 |
| S10-M-1000/10 | 1000 | 1450 | 10300 | 0.6 | 4.5 | 1935 | 1175 | 1685 | 2860 |
| S10-M-1250/10 | 1250 | 1650 | 12000 | 0.6 | 4.5 | 1960 | 1170 | 1730 | 3330 |
| S10-M-1600/10 | 1600 | 2040 | 14500 | 0.5 | 4.5 | 2325 | 1220 | 2120 | 3765 |
| S10-M-2000/10 | 2000 | 2140 | 17820 | 0.5 | 4.5 | 2395 | 1260 | 2225 | 4530 |
>>S11 series 20KV three phase off -load tap changer distribution transformer
TYPE | Voltage ratio(kV) | Connection | No
load
Loss
(W) | Load
loss
(W) | Io
(%) | UK
(%) | Dimensions (mm) | Weight (Kg) |
| a | b | c | d | e | f |
| S11-M-30/20 |
20(10)
±5%/0.4 |
Yyn0
Dyn11 | 100 | 690/
660 | 2.1 |
5.5 | 1100 | 700 | 1240 | 14 | 400 | 400 | 640 |
| S11-M-50/20 | 130 | 1010/
960 | 2.0 | 1130 | 710 | 1260 | 14 | 400 | 450 | 710 |
| S11-M-63/20 | 150 | 1200/1150 | 1.9 | 1160 | 740 | 1270 | 14 | 400 | 450 | 780 |
| S11-M-80/20 | 180 | 1440/1370 | 1.8 | 1200 | 770 | 1280 | 14 | 400 | 450 | 860 |
| S11-M-100/20 | 200 | 1730/
1650 | 1.6 | 1220 | 800 | 1300 | 14 | 400 | 450 | 900 |
| S11-M-125/20 | 240 | 2080/
1980 | 1.5 | 1270 | 840 | 1330 | 19 | 550 | 450 | 970 |
| S11-M-160/20 | 290 | 2540/
2420 | 1.4 | 1320 | 870 | 1350 | 19 | 550 | 550 | 1100 |
| S11-M-200/20 | 340 | 3000/
2860 | 1.3 | 1360 | 900 | 1380 | 19 | 550 | 550 | 1240 |
| S11-M-250/20 | 400 | 3520/
3350 | 1.2 | 1430 | 910 | 1430 | 19 | 550 | 650 | 1420 |
| S11-M-315/20 | 480 | 4210/
4010 | 1.1 | 1460 | 920 | 1450 | 19 | 550 | 650 | 1570 |
| S11-M-400/20 | 570 | 4970/
4730 | 1.0 | 1490 | 940 | 1470 | 19 | 660 | 750 | 1740 |
| S11-M-500/20 | 680 | 5940/
5660 | 1.0 | 1570 | 970 | 1540 | 19 | 660 | 750 | 1950 |
| S11-M-630/20 | 810 | 6820 | 0.9 |
6.0 | 1650 | 1000 | 1580 | 19 | 660 | 850 | 2290 |
| S11-M-800/20 | 980 | 8250 | 0.8 | 1750 | 1070 | 1650 | 19 | 820 | 850 | 2690 |
| S11-M-1000/20 | 1150 | 11330 | 0.7 | 1830 | 1170 | 1690 | 19 | 820 | 850 | 2880 |
| S11-M-1250/20 | 1380 | 13200 | 0.7 | 1900 | 1200 | 1790 | 19 | 820 | 850 | 3400 |
| S11-M-1600/20 | 1660 | 15950 | 0.6 | 1950 | 1250 | 1850 | 19 | 820 | 900 | 4100 |
Arc furnace transformers Main Technical Parameters for HS, HSZ, HSSPK, HSSP, HJSSP HJSSPZ Series 33kV-110kV Level Arc furnace transformer:| Rated power (kVA) | Primary voltage (kV) | Secondary Step Voltage (v) | Rated Secondary Current (A) | Connection symbol | Short-Circuit impedance (%) | Cooling Method |
|
| 10000 | 35
66 | 10 | 24 056 | Dd0
Yd11
Yad11 | 7~8 | OFWF
OR
OFAF |
| 12500 | 11 | 26 729 |
| 16000 | 12 | 30 287 |
| 20000 | 35
66
110 | 13 | 33 962 | 6~7
(35kV)
7.5~8.5
(66kV, 110kV) |
| 25000 | 14 | 37 984 |
| 31500 | 16 | 42 792 |
| 40000 | 18 | 48 619 |
| 50000 | 20 | 54 467 |
| 63000 | 22 | 62 176 |
| 80000 | 25 | 69 982
|
Ningbo Tianan (Group) Co., Ltd. Was founded in 1969, is a national large
Enterprise, national key high-tech enterprise, industry key enterprises and Zhejiang provincial leading enterprise in power transmission and transforming
Industry. Under the company there are 1 R&D center, 10 specialized subsidiary
Companies, and more than 70 marketing offices. There are more than 2500 emplo--yee working in headquarter. The total asset sums up to 3.8 billion yuan (RMB).
The output value sums up to 5.0 billion yuan (RMB). Group competitiveness ranks in the first 225 in China's top 500.
Tianan Group is one of the domestic manufacturers and scientific research
Enterprises of power transmission and transforming industry featuring largest scale, most variety, full specifications, and best quality. Besides, the company owns abundant technical development strength, the international first-class production
And test equipments, efficient and flexible management mechanism, a great
Number of outstanding professional talents. "Quality is personality" is our concept. It has sufficient quality management system and quality assurance, all over the world's sales service network. All the above constructs excellent resources support system for customers.
Now the products include 126kV GIS combination apparatus, SF6 circuit breaker, 126kV&252kV power transformer, 252kV and below 252kV outdoor HV disconnecting switch and transformer, boxtype substation below 40.5kV, ring main unit
Switchgear, midmount switchgear, fixed switchgear, GIS, L. V. Switchgear, frequencyconversion switchgear, H. V. Load switch, H. V. &L. V. Circuit breaker, cable (RMU)
Branch box, fuse, current transformer (CT), dry-type & oil-immersed transformers,
High-voltage inverter speed regulation device, high-voltage static reactive power
Generator, active power filter, intelligent electric equipments, etc. The products
Are widely used in nuclear power plant, chemical plant, railway, underground,
Airport, national defense, Beijing Olympics and main national, provincial and municipal construction projects.
Tianan has already obtained "China's well-known trademarks ", "China's brand
-name products ", "National Product Exempting from Inspection ". The ISO9001 quality guarantee system, the ISO14001 environment management system and
The OHSAS18001 occupation healthy safety control system through the national authentication, "CCC", "PICC" authentication certificate, which Tianan obtained comparatively early. The products cover all over the country and abroad five continental countries. Especially, our products applied to the Shenzhou V, Shenzhou VI,
Shenzhou VII manned spacecraft and the construction of Qinghai-Tibet railway. The practice has proved Tianan's products have the outstanding performance
That can withstand the test of bad environment.
In recent years, many prizes have been awarded to Tianan, such as: National May1st Labor Prize, National Innovation-based Pilot Enterprise, National Mechanical
Industrial Management Demonstration Enterprise, National Mechanical Industry
Civilized Company, Zhejiang Province "a group of five" key business, Province Quality Control Prize and so on. Chairman of the Board Jiang Baomin is the national model labor and the outstanding entrepreneur.
The "Tianan Electric town" which covers an area of more than 600, 000 square
Meters and RMB 1.2 billion has been invested has been put to use. To the end of 2011, Tianan has put it into an integrated, intellectualized and modernized
Enterprisewith the combination of scientific research, manufacturing, management and culture as "the aircraft carrier" in power transmission and transforming
Industry.
Seeing is believing, Tianan Group sincerely welcome all new and old customers
And friends come to our company for a visit or inspection.
