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:What is the rated current of the 80KVA transformer?
Rated current formula: I = P / 1.732 × U = 80000 / 1.732 × 380 ≈ 122 (A) (Current contains active and reactive current)
Q:Transformer - Powered by DC?
I once powered my transformer from DC with LED on other end. the LED glowed for a fraction of second and then went off
Q:in the Transformers comics/TV, do humans ever take control/become a transformer? ?
Transformers original series, season 3, Only Human - Criminals get their hands on four Autobots and remove their minds, turning the bodies into piloted mecha. Transformers IDW Comic - Sunstreaker is captured and bootlegged, copies of his body being controlled by humans while they use his original mind as a sort of coordinating system. Transformers Animated - The villain Headmaster's whole schtick is to cut the heads off Transformers and take over their bodies.
Q:Explain what a transformer does,why it is necessary,and why it works?
A transformer is a device that allows you to easily and efficiently convert an AC voltage to a different voltage. When you do this, the current is converted in the opposite ratio. For example, if you have a 100 volt 1 amp source and you convert it to a 1000 volt source, it will have capability of 0.1 amp. It is made by winding wires on iron cores. See the reference for details. It is very important for the transmission of AC power, as it can be changed to a very high voltage for efficient distance transmission, and back to low voltage for use in homes. .
Q:Ohm's law and transformers?
Ohm's regulation, the place it applies, will consistently artwork. the significant factor is the place it applies. on your case, the present is decreased via a million/20 interior the secondary whilst in comparison with the present interior the regularly occurring. however the fee of the secondary present day might nicely be calculated via making use of ohms regulation in case you have a resistor load. case in point, in case you have a one hundred volts utilized to the regularly occurring, then the secondary is 2000 volts. in case you have a a million M? load, the secondary present day is 2000/1M 2 mA. meaning the regularly occurring present day is 20 x 2mA 4 hundred mA. in case you alter the burden to 100k?, then the secondary present day is 20 mA and the regularly occurring present day is 4 amps.
Q:Question on transformers?
Since there is no evidence to indicate any inefficiency of this transformer, you have to assume that it is 100% efficient, with input power equaling output power. Input power Vin * Iin Output power Vout*Iout Equate: Vin*Iin Vout*Iout Solve for Iin, our unknown: Iin Iout * Vout/Vin Data: Vout 110 V Vin 230 V Iout 0.15 A Result: Iin 0.072 As for the ratio of loops, the number of turns in each coil is proportional to the voltage across each coil. Thus, the turns ratio equals the voltage ratio of 110/230 0.478. That is to say, there are 2.1 turns in the primary coil for every individual turn there is in the secondary coil. The primary coil is the coil plugged in to the line voltage of 230 V. The secondary coil is the coil in to which the load plugs in, at load voltage of 110 V.
Q:Transformers 3 discussion (SPOILERS)?
Michael Bay already said he wasn't going to make a 4th one (I think) Anyway, I was definitely pissed when Ironhide died. I've been writing fanfiction on Fanfiction.net for years, and you get connected so easily with the characters, and right now, Transformers is my main thing to write about. I thought the movie was awesome. Truly epic. It was so sad when Wheeljack (Known as Que in the movie) died. He was so innocent. Just your typical engineer/scientist who was doing his job and how he died was really heart wrenching. I did cry when Ironhide died. Like I said, you get so connected to the characters when you spend years writing about them. I hope Bay changes his mind and makes more Transformers movies. I'd definitely watch them!
Q:Why does the transformer have three lines
There are three lines is normal, because in addition to a line of fire a zero line, there is a ground wire (ground wire is directly connected to the Earth's line, it can be called a safe circuit, dangerous when it put high pressure directly To the earth, be a lifeline. Transformer is the use of electromagnetic induction principle to change the AC voltage of the device, the main components are primary coil, secondary coil and core (core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the use can be divided into: power transformers and special transformers.
Q:Why there are no 4 phase transformers?
Off the top of my head, we use 3-phase AC because you can make electric motors that go efficiently in one direction with no commutators or tricks with phasing. That would work with any number of phases greater than 2, but at increased complexity in wiring and rotor/stator construction, so there's no point.
Q:Transformer step up 15V ac to 80V ac while its step down ratio is 30:1(240 to 8 V ac). how possible ?
no, transformers work in reverse only as long as the voltages don't exceed those in the spec. And only as long as the power does not exceed that of the original. In this case you are applying 15 volts to a winding made for 8 volts, and expecting 450 volts on a winding made for 240 volts. Won't work. You should check the current levels also, as I suspect your load is larger than the transformer is designed for also. .

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