Performance characteristics

Resin-insulated dry-type transformers are our company's introduction of foreign advanced technology, and independently developed SC9, SCB9 series and SC10, SCB10 series thin-insulated dry-type transformers with fillers. Because the coil is encapsulated by epoxy resin, it is flame-retardant, fire-proof and explosion-proof. Maintenance-free, pollution-free, small size, can be directly installed in the load center. At the same time, scientific and reasonable design and pouring process make the product smaller partial discharge, low noise, strong heat dissipation capacity, long-term operation under 140% rated load under forced air cooling, and equipped with intelligent temperature controller, which has faults Alarm, over-temperature alarm, over-temperature trip and black gate function, and connected with the computer through the RS485 serial interface, it can be centrally monitored and controlled. Due to the above characteristics of our dry-type transformers, they are widely used in power transmission and transformation systems, such as hotels, restaurants, airports, high-rise buildings, commercial centers, residential quarters and other important places, as well as subways, smelting power plants, ships, offshore drilling platforms and other environments Bad place.

Process characteristics

The coil is wound on a high-precision winding machine, and the low-voltage winding adopts a foil winding structure. When the transformer capacity is large, there is a ventilation duct to be vacuum-dried after the winding is completed. There are strict monitoring, and the precise manufacturing process of mouth pouring is adjusted according to the situation, so that the coil has no bubbles and holes, so that the finished transformer can achieve high-quality operation effect.

Way out

Conventional outlet, standard enclosed busbar and standard side outlet can be manufactured according to different interface forms, and special outlet methods can also be designed according to user requirements.

reliable structure

core

The iron core is made of imported high-quality cold-rolled silicon steel sheet, the iron core is made of imported high-quality cold-rolled silicon steel sheet, and the final structure is fully mitered . No-load current and iron core noise, clamps and fasteners are treated with special surface, so that the product appearance quality has been further improved.

High voltage winding

High-voltage winding The high-voltage winding is vacuum-cast with filler ring resin, which greatly reduces the amount of partial discharge and improves the electrical strength of the coil. The inner and outer walls of the winding are filled with glass fiber grid plates, which enhances the mechanical strength of the coil and improves the product's anti-slip The ability to short circuit, the coil will never crack.

low voltage winding

The low-voltage winding adopts a foil structure, which solves the problem of the axial helix angle when winding with wire, and makes the ampere-turn more balanced. At the same time, the coil adopts an axial cooling air duct, which enhances the heat dissipation capacity. The winding layers are pre- impregnated with TD cation epoxy resin Cloth, solidified and formed as a whole.

Protective housing and outgoing busbars

The protective shell provides further safety protection for the transformer. The protection grades are IPZO, IP23, etc. The shell materials are cold-rolled steel plate, stainless steel plate, etc. for users to choose standard busbar discharge lines for low-voltage outgoing lines, side outgoing lines and top outgoing lines. The user designs a special way of exiting.

Temperature control system and air cooling system

The cross-flow top-blowing cooling fan is adopted, which has the characteristics of low noise, high wind pressure and beautiful appearance, which enhances the overload capacity of the transformer. The temperature control adopts intelligent temperature controller, which improves the safety and reliability of transformer operation.

Product Standards

Executive standard

GB/T10228-2008 GB109411-2007 JB/T10088-2004 GB4208-1993

Rated high pressure

10(11,10.5,6.6,6.3,6)KV

Rated low voltage

0.4kV

link group

Dyn11 or Yyn0

High voltage tap range

±5% or ±2×2.5%

Insulation level

LI75AC35/LIOAC5

frequency

50Hz

Rated capacity (kvar)

Voltage combination and tap range (kv)

link group label

No-load loss (kW)

Load loss (kW) at different insulation system temperatures

No-load current %

Short circuit impedance (%)

Weight (kg)

Dimensions (mm) (length Lx width Bx height H)

Installation size

Dimensions with shell (length X width X height)

High voltage (kV)

High pressure tap range %

Low voltage (kV)

155°C(F) (120°C)

30

6 6.3 6.6 10 10.5 11

±2.5 ± 5

0.4

Dyn11 Yyn0

0.14

0.71

2

4

270

590x500x640

400/400

1000x900x1050

50

0.19

1

2

360

620x550x670

400/400

1000x900x1050

80

0.26

1.38

1.5

510

680x580x710

400/450

1050x950x1100

100

0.29

1.57

1.5

570

720x600x720

400/450

1100x950x1150

125

0.34

1.85

1.3

600

860x650x850

550/550

1250x1000x1300

160

±2x2.5 ±5

0.38

2.13

1.3

730

900x710x890

550/550

1300x1050x1350

200

0.45

2.53

1.1

850

940x750x980

550/660

1300x1100x1500

250

0.52

2.76

1.1

980

960x770x1030

660/660

1300x1100x1550

315

0.63

3.47

1

1130

1020x790x1060

660/660

1400x1150x1550

400

0.7

3.99

1

1330

1060x880x1100

660/820

1450x1200x1600

500

0.83

4.88

1

1480

1080x900x1160

660/820

1450x1200x1700

630

0.94

5.96

0.85

6

1580

1200x920x1150

820/820

1550x1200x1700

800

1.1

6.96

0.85

1910

1260x920x1260

820/820

1600x1200x1800

1000

1.27

8.13

0.85

2260

1320x940x1300

820/820

1700x1250x1800

1250

1.5

9.69

0.85

2660

1380x950x1380

820/820

1750x1250x1900

1600

1 7B

11.7

0.85

3180

1460x1120x1490

1070/1070

1850x1400x2000

2000

2.2

14.4

0.7

3600

1490x1120x1620

1070/1070

1900x1450x2200

2500

2.6

17.1

0.7

4220

1520x1120x1760

1070/1070

1950x1500x2200

3150

3.7

22.5

0.6

5000

1600x1120x1860

1070/1070

2000x1550x2300

4000

4.3

27

0.6

6300

1680x1120x2150

1070/1070

2100x1600x2600