Oil-immersed power transformer of 35kV

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Oil-immersed power transformer of 35kV


1.    Product

S9 series power transformer of 35kV is mainly used for the transmission and distribution in the power system of voltage level 35kV and rated frequency 50-60Hz, the capacity of it is 50-31500kVA. The iron core adopts silicon steel sheet with high permeability, full-oblique joints, no punching, and colligated and  taken up with semi-dry epoxy fiberglass banding. The fuel tank has three types of radiators: flat tube type, corrugated type and chip type.  The 800kVA above transformers  are equipped with gas relay, pressure relief valve, oil tank with diaphragm and remote thermometer components.

The transformers of 3150kVA and above are equipped with oil refiner.  The characteristics of products are low loss, low noise, save power and so on.


SZ9 series on-load-tap-changing power transformer of 35kV is equipped with tap changer, the voltage regulating range  of it is ± 3 × 2.5%.  The voltage adjustment  can be controlled by manual or automatic through control box. The structures,performances and characteristics of the transformer are as the same as the power transformer of S9 series for 35kV.


The products conform with the GB/T6451-2008 standards.


2.    Technical parameter


35kV S9 series distribution transformer technical parameter

Model

Rated Capacity

kVA

Rated voltage

kV

Loss

W

Impedance of short-circuit%

No-load current%

Label number of connecting group

Weight

kg

Outside DimensionL x W x Hmm

Gauge

mm

HV

LV

No-load

load

Body

Oil

Ttotal weight

S9-50/35

50

38.5±5%

35±5%

 0.4

0.21

1.27/1.21

6.5

2.0

Yyn0

Dyn11

345

260

820

1140×955×1760

550/550

S9-100/35

100

0.29

2.12/2.02

1.8

408

390

1070

1180×1070×1910

550/550

S9-125/35

125

0.34

2.50/2.38

1.7

415

470

1100

1180×1090×2000

550/550

S9-160/35

160

0.35

2.97/2.83

1.6

423

555

1295

1180×1100×2035

550/550

S9-200/35

200

0.43

3.50/3.33

1.5

524

655

1540

1260×1150×2075

550/550

S9-250/35

250

0.51

4.16/3.95

1.4

550

825

1755

1330×1200×2155

660/660

S9-315/35

315

0.61

5.01/4.77

1.4

640

945

2010

1390×1250×2220

660/660

S9-400/35

400

0.73

6.05/5.76

1.3

740

1125

2390

1720×1260×2285

660/660

S9-500/35

500

0.86

7.28/6.93

1.2

805

1289

2710

2045×1290×2415

660/660

S9-630/35

630

1.04

8.28

1.1

885

1455

3040

2155×1320×2250

820/820

S9-800/35

800

1.23

9.90

1.0

1050

1800

3700

2265×1340×2700

820/820

S9-1000/35

1000

1.44

12.15

1.0

1335

2115

4510

2495×1380×2885

820/820

S9-1250/35

1250

1.75

14.67

0.9

1445

2610

5045

2595×1410×2910

1070/1070

S9-1600/35

1600

2.12

17.55

0.8

1490

2840

5740

2680×1590×2970

1070/1070

Note Load values before / are for  Dyn11 connection and values after /” are for Yyn0 connection.


35kV no excitation voltage regulating power transformer technical parameter


Type specification

Rated Capacity

kVA

Rated voltagekV

Loss

W

Impedance of short-circuit

%

No-load current%

Label number of connecting group

Weightkg

Outside DimensionL x W x H

mm

Gaugemm

HV

LV

No-load

load

Body

Oil

Total weight

S9-800/35

800

38.5±5%

35±5%

3.5 6.3 10.5

1.23

9.9

6.5

1.0

Yd11

Ynd11

1150

1800

   3900

2265×1340×2700

820/820

S9-1000/35

1000

1.44

12.15

0.9

1335

2115

4510

2495×1380×2885

820/820

S9-1250/35

1250

1.76

14.67

0.8

1445

2610

5045

2595×1410×2910

1070/1070

S9-1600/35

1600

2.12

17.55

0.7

1490

2840

5740

2680×1590×2970

1070/1070

S9-2000/35

2000

2.72

19.35

0.6

1574

3280

6410

2690×1620×3100

1070/1070

S9-2500/35

2500

3.20

20.70

0.56

1885

3860

7695

2730×1900×3000

1070/1070

S9-3150/35

3150

3.80

24.30

0.56

2145

4610

8980

2660×2900×3100

1070/1070

S9-4000/35

4000

4.52

28.80

0.48

2270

5330

10060

2800×2865×3365

S9-5000/35

5000

5.40

33.03

0.48

2580

6330

11670

3460×2940×3430

S9-6300/35

6300

6.56

36.90

0.42

2840

7440

13430

3800×2770×3355

S9-8000/35

8000

9.00

40.50

0.42

3500

9650

17200

4400×3000×3520

S9-10000/35

10000

10.88

47.70

0.40

4400

12200

21000

3800×3550×3750

S9-12500/35

12500

12.60

56.70

0.40

5000

13740

24500

4500×5650×3900

S9-16000/35

16000

15.20

69.30

0.40

5520

16800

27800

4800×3700×4050

S9-20000/35

20000

18.00

83.70

0.32

5900

19020

31100

5240×3830×4040

S9-25000/35

25000

21.38

99.00

0.32

7200

23400

37600

5520×3800×4460

S9-31500/35

31500

25.28

118.80

1.0

7660

26080

42200

5660×3800×4590



35kV  2000~12500kVA load voltage regulating power transformer technical parameter

type Specification

Rated Capacity(kVA)

Rated voltage

(kV)

Loss (kW)

Impedance of short-circuit(%)

Label number of connecting group

Weight(kg)

No-load current

A

No-load

Load

Body

Oil

Total weight

SZ9-2000/35

2000

35

2.88

20.25

6.5

Yd11

2.9

20.25

0.9

0.80

SZ9-2500/35

2500

3.40

21.73

3.44

21.74

0.9

0.80

SZ9-3150/35

3150

38.5   35

4.04

26.01

7.0

4.09

26.0

0.81

0.72

SZ9-4000/35

4000

4.84

30.69

4.95

30.7

0.81

0.72

SZ9-5000/35

5000

5.80

36.00

5.85

36.0

0.77

0.68

SZ9-6300/35

6300

7.04

38.70

YNd11

7.02

38.7

0.77

0.68

SZ9-8000/35

8000

9.84

42.75

7.5

10.0

42.7

0.68

0.60

SZ9-10000/35

10000

11.60

50.58

11.7

50.6

0.68

0.56

SZ9-12500/35

12500

13.68

59.85

8.0

13.77

59.85

0.63

0.54



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Q:20) A step-up transformer is connected to a generator that is delivering131 V and 96 A. The?
a step up transformer is connected to the generator. therefore the voltage on the primary side of the transformer is 131 volts. secondary turns/primary turns secondary voltage/primary voltage. therefore voltage on secondary side 131*859 112.529KV secondary turns/primary turns primary current/secondary current therefore current on the secondary side 96/859 111.756mA. in order to cross verify, the power on primary side power on the secondary side. i.e 131*96112.529KV*111.756mA.
Q:Transformers have any way of cooling
Selection of strong air-cooled cooling mode, when the pump and fan lose power supply, the transformer can not run for a long time. Even if no load can not run for a long time. Therefore, two separate power supplies should be selected for use by the cooler.     When the oil-water cooling method is selected, it can not be operated when the pump cooling water loses power. The power supply should select two independent power supplies.
Q:What is the transformer absorption ratio (R60 / R15)
Generally, the absorption ratio should be greater than or equal to 1.3 as the absorption ratio is acceptable.
Q:Step Down Voltage Transformer / Regulator?
Install a 125 volt 30 amp receptacle where the oven outlet is and rewire for a neutral in the breaker panel.
Q:Flyback Transformer Clarification & help?
The frequency of an ac power supply is only 60 hz. That's way too low for a flyback. The resistance of a transformer depends on the frequency. At 60Hz a flyback transformer acts like a short circuit. It would draw a lot of power, might damage the power supply and nearly nothing would come out the other side of the transformer.
Q:How is the transformer sorted?
2, according to the cooling method points: 1) Dry-type transformers: rely on air convection for natural cooling or increase fan cooling, used for high-rise buildings, high-speed toll stations and local lighting, electronic circuits and other small-capacity transformers. 2) oil-immersed transformers: rely on oil as a cooling medium, such as oil from the cold, oil-cooled, cold water, forced oil circulation. 3, according to the use of points: 1) power transformers: for power transmission and distribution system of the rise and fall voltage. 2) instrument with transformers: such as voltage transformers, current transformers, for measuring instruments and relay protection devices. 3) test transformer: to produce high pressure, the electrical equipment for high pressure test. 4) special transformers: such as electric furnace transformers, rectifier transformers, adjust the transformer, capacitive transformers, phase-shifting transformers.
Q:Transformers?
On a scale of 1-100 I'd say 10000 I LOVE TRANSFORMERS! ���� oh and my favorite Transformers are Bumblebee, Sideswipe, and Shockwave. I have lots of others that are my favorite i m just too lazy to explain them
Q:AC Transformer & Circuit Board Problem?
Transformers don't normally fail for no reason. In most cases, something caused the transformer to fail, so it is incumbent upon the person servicing the unit to figure that out first before installing another transformer and powering it up. If it can't be determined what caused the failure, it is best to install an in-line fuse so, if there is an issue, the fuse will blow before taking out the transformer and the circuit board. Having said that, in a lot of cases, the circuit board has its own built-in fuse to protect the board from cases such as yours, so the board fuse should have blown before the board became damaged. I don't have much confidence in what your man did, so I'm more likely to blame him for blowing out your circuit board and the new transformer, unless he can prove otherwise.
Q:Physics? transformer help?
A Step up transformer is outdoors a skill station and will enhance the voltage for the skill lines so it may bypass swifter and better parts. A step down transformer is after the skill lines to shrink the voltage and making it secure for domicile use.
Q:Did you like Transformers 2?
i liked it, but not nearly as much as the first one. the robot fight scenes were WAY too long and there were a lot of lame one liners

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