SH15-M Amorphous Alloy Oil-immersed Transformer

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Product Description:

SH15-M Series

Amorphous Alloy Oil-immersed Transformer

Introduction of Products

Amorphous alloy isderived from iron, boron and other elements which rapid cooling down to mouldin order to arrange its atoms disordered. Compared with silicon sheets, the permeabilityof amorphous alloy is high, the no-load losses and current is lower, and moreoperation charges can be saved. Meanwhile, its heat is lowand it has good stability to make its working lifelonger.

Performance Characteristics

1.     Saving power: The no-load losses reduce byabout 80% than that of S9 series.

2.     Reliable: The capability of anti-shortcircuit is strong.

3.     Protecting environment: Its noise is lowand it can decrease the discharging quantity of carbon.

Structure Characteristics

1. The core adopts three-phase five-limb and HV winding adopts D connection,which eliminates the three fluxes and three-harmonic electric potential anddecrease eddy current loss and temperature caused by leakage. Meanwhile, the steepnessof impulse voltage is reduced.

2. The coil takesthe shape of rectangular, and use conductor tensioning device to wind. Itadopts shaping, press mounting and other technique measures to make the outsidedimension of coil come to design requirement. And that HV coils wind outside LVcoils improve the strength of coil and the capability of anti-short circuit.

3. There is no oilstorage tank and moisture absorber on the oil tank. The transformer oil doesn’tcontact with the air and the expansion of oil depends on the elasticity of corrugatedplates to compensate. This can eliminate maintenance and improve working life.

Normal Using Condition

1.     The altitude is not more than 1000m.

2.     Environment temperature

Highest temperature: +40℃

Hottest monthly average temperature: +30℃

Highest yearly average temperature: +20℃

Lowest temperature: -40℃

3.     Using outdoors( or indoors)

4.     The wave shape of supply voltage is approximateto sine wave.

5.     The supply voltage of three phases isgenerally symmetric.

If thetransformers need to be used at abnormal condition, the details should beoffered when the users order.

Main Specification and Technology Parameter

1.     Range of rated capacity: 50~2500kVA

2.     Rated voltage: not more than 10kv

3.     Rated frequency: 50Hz

4.     Insulating level

Voltage  Grade

(kv)

The highest voltage effective value of equipment(kv)

Rated short-time applied withstand voltage(kV/min)

Rated lightning impact withstand voltage(peak)(kv)

1

1.1

3

--

6

7.2

20

60

10

12

35

75

5. The insulating classof transformer is A, coil temperature rise is not more than 65K, and thetemperature rise of top oil is not more than 60K.

6. Thetransformers correspond with the following standards:

a. GB1094.1~2, GB1094.3, GB1094.5 Power transformer

b. JB/T 10318 Technology parameter and request of oil-immersedamorphous alloy core distribution transformer

c. Standard of InternationalElectro-technical Commission: IEC60076, Power transformer

d. Q/SIHG1 SH15-M Technology parameter andrequest of three-phase oil-immersed distribution transformer of amorphous alloycore sealed type

7. TechnologyParameter of SH15-M Series

Rated  capacity (kVA)

Voltage  and tapping range

Symbol  of connecting group

No-load  losses (W)

Load  losses (W)

No-load  current (%)

Impedance  of short circuit (%)

HV(KV)

Tapping  range (%)

LV(kV)

30

6

6.3

10

10.5

11

±5

±2x2.5

0.4

Dyn11

33

630

1.7

4

50

43

910

1.3

63

50

1090

1.2

80

60

1310

1.1

100

75

1580

1

125

85

1890

0.9

160

100

2310

0.7

200

120

2730

0.7

250

140

3200

0.7

315

170

3830

0.5

400

200

4520

0.5

500

240

5410

0.5

630

320

6200

0.3

4.5

800

380

7500

0.3

1000

450

10300

0.3

1250

530

12000

0.2

1600

630

14500

0.2

2000

750

17400

0.2

5

2500

900

20200

0.2

Outline Dimension

Type

Outside dimension (mm

Weight (kg

Length

Width

Height

Oil weight

Total weight

SH15-30

1100

690

1090

130

630

SH15-50

1190

750

1140

160

710

SH15-63

1250

750

1160

160

750

SH15-80

1290

750

1200

170

810

SH15-100

1260

800

1190

180

870

SH15-125

1320

810

1220

190

940

SH15-160

1370

810

1220

210

1050

SH15-200

1410

800

1320

230

1140

SH15-250

1490

810

1360

260

1290

S(B)H15-315

1520

790

1430

280

1500

S(B)H15-400

1670

820

1510

330

1710

S(B)H15-500

1650

910

1450

370

1960

SBH15-630

1830

920

1440

430

2250

SBH15-800

1910

950

1500

480

2730

SBH15-1000

2000

1100

1490

620

3330

SBH15-1250

2100

1100

1580

730

3560

S(B)H15-1600

2120

1240

1560

860

3830

A comparison about no-load losses of amorphous alloyand silicon sheet

Capacity  (KVA)

No-load  losses (w)

S9  type (silicon  sheet)

SHI5  type (amorphous  alloy)

100

290

75

315

670

170

500

960

240

The Manufacturing Process of Amorphous Alloy Materials

a. The raw materials melt in the induction furnace.

b. The melted materials are transferred to feedingpart.

c. Control of casting head

d. After melting to be thin, it is sprayed to coolingwheel.

e. The sprayed materials cool down at the speed of 106℃ per second to form amorphous alloybelt.

f. Measure the width and thickness of alloy belt andfeedback to control system.

g. It is led to pull through unit.

h. Material receiving


A comparison to manufacturingprocess of amorphous alloy and silicon sheet

 Amorphous alloy material                 Orientation silicon sheet



Social and Economic Effects

  • The manufacturingprocess of core materials of amorphous alloy core transformers is simple, andthe energy source losses are little, so the carbon discharge can be reduced.

  • No load losses are low, and the increased investment cost of transformers can be taken back within5 years.

  • Low operation temperature, small insulation deterioration, long working life.



The ordering basic data

  1Rated capacitance;

  2Rated voltage;

  3Rated frequency;

  4Tapping range;

  5Impedance voltage;

  6Using condition;

  7Other performance data should be indicated inthe contract.


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