Resin Insulated Dry-type Transformer
The SCB10 series Resin Insulated Dry-type Transformer independently developed by Kexun Electric in China Factory has the characteristics of flame retardancy, fire prevention, explosion prevention, maintenance-free, pollution-free and small size, and can be directly installed in the load center. Equipped with intelligent temperature controller, it has the functions of fault alarm, overtemperature alarm, overtemperature trip and black brake.
Model:SCB10
Brand：KEXR
Model:SCB10
Brand：KEXR
● Components of SCB10 type Resin Insulated Dry-type Transformer
◆Core of Resin Insulated Dry-type Transformer
The iron core is made of imported high-quality cold-rolled silicon steel sheets, with a fully inclined joint structure. The core column is tied with F-grade non-woven adhesive tape, and the surface of the iron core is encapsulated with epoxy resin to reduce no-load-loss, no-load current, and iron core noise, The clamps and fasteners have undergone special surface treatment to further improve the appearance quality of the product.
◆Low voltage winding
The Resin Insulated Dry-type Transformer ‘s low-voltage winding adopts a foil structure, which solves the problem of axial helix angle when using wire winding, making the turns more balanced. At the same time, the coil adopts an axial cooling air duct, enhancing the heat dissipation ability. TDMD epoxy resin prepreg is used between the winding layers, and the whole is cured and formed.
◆High voltage winding The SCB10 series Resin Insulated Dry-type Transformer
The high-voltage winding is vacuum cast with epoxy resin with fillers, greatly reducing the local discharge and improving the electrical strength of the coil. The inner and outer walls of the winding are filed with glass fiber mesh plates, enhancing the mechanical strength of the coil and improving the product's ability to resist sudden short circuits, The coll never cracks.
◆ Manufacturing process
The coil of SCB10 type Resin Insulated Dry-type Transformer 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. After the winding is completed, vacuum drying is carried out, and the entire pouring and curing process is completely operated according to the process requirements, All processes need to be strictly monitored and adjusted according to the situation. The precision manufacturing process of pouring ensures that the coil has no bubbles or voids, resulting in high-quality operation of the transformer.
◆Temperature control system and air cooling system
The cross flow top blowing cooling fan is adopted, which has the characteristics of low noise, high air pressure, and beautiful appearance, enhancing the overload capacity of the SCB10 type Resin Insulated Dry-type Transformer., The temperature control adopts an intelligent temperature controller, which improves the safety and reliability of transformer operation.
◆Protect the casing and output busbar
The protective shell provides further safety protection for the transformer, with protection levels of iP20, lP23, etc, The shell material includes cold-rolled steel plate, stainless steel plate, etc, for users to choose from, Low voltage outgoing lines use standard busbars, both side and top outgoing lines can be used, and special outgoing methods can also be designed for users.
◆Transformer outgoing line method
Conventional outgoing lines, standard enclosed busbars, and standard side outgoing lines can be manufactured according to different interface forms, and special outgoing methods can also be designed according to user requirements.
◆ Related standards & parameters
GBT10228-2015.GB1094.11-2007
JBT10088-2004,GB4208-1993
Rated high voltage: 10 (11,10.5,6.6,6.3,6) KV
Rated low voltage: 0.4KV
Connection group: Dyn11 or YynO
High voltage tap range: + 5 or + 2X2.5%
Insulation level: Ll75AC35/LI0AC5
Frequency: 50Hz
◆ Appearance and installation dimension of the SCB10 type Resin Insulated Dry-type Transformer
◆Technical parameters of 10KV SCB10 type Resin Insulated Dry-type Transformer
|
Rated capacity (kVA) |
Voltage combination and tap range (kV) |
Group
Number |
No Load loss |
Temperature of different insulation Systems Load loss below (kW) |
No
Load
Current (%) |
Short circuit impe dance (%)
|
Weight
(kg) |
L * W * H mm |
Installation
Size （mm） |
L * W * H (With Shell) |
||
|
HV
(KV) |
High voltage division pressure Range of acceptance |
LV
(KV) |
||||||||||
|
120℃ |
||||||||||||
|
30 |
6 6.3 6.6 10 10.5 11 |
±2.5 ±5 |
0.4 |
Dyn11
Yyn0 |
0.19 |
0.71 |
2 |
4 |
270 |
590*500*640 |
400/400 |
1000x900x1050 |
|
50 |
0.27 |
1 |
2 |
360 |
620x550x670 |
400/400 |
1000x900x1050 |
|||||
|
80 |
0.37 |
1.38 |
1.5 |
510 |
680x580x710 |
400/450 |
1050x950x1100 |
|||||
|
100 |
0.4 |
1.57 |
1.5 |
570 |
720x600x720 |
400/450 |
1100x950x1150 |
|||||
|
125 |
0.47 |
1.85 |
1.3 |
600 |
860x650x850 |
550/550 |
1250x1000x1300 |
|||||
|
160 |
±2*2.5
±5 |
0.54 |
2.13 |
1.3 |
730 |
900x710x890 |
550/550 |
1300x1050x1350 |
||||
|
200 |
0.62 |
2.53 |
1.1 |
850 |
940x750x980 |
550/660 |
1300x1100x1500 |
|||||
|
250 |
0.72 |
2.76 |
1.1 |
980 |
960x770x1030 |
660/660 |
1300x1100x1550 |
|||||
|
315 |
0.88 |
3.47 |
1 |
1130 |
1020x790x1060 |
660/660 |
1400x1150x1550 |
|||||
|
400 |
0.98 |
3.99 |
1 |
1330 |
1060x880x1100 |
660/820 |
1450x1200x1600 |
|||||
|
500 |
1.16 |
4.88 |
1 |
1480 |
1080x900x1160 |
660/820 |
1450x1200x1700 |
|||||
|
630 |
1.3 |
5.96 |
0.85 |
6 |
1580 |
1200x920x1150 |
820/820 |
1550x1200x1700 |
||||
|
800 |
1.52 |
6.96 |
0.85 |
1910 |
1260x920x1260 |
820/820 |
1600x1200x1800 |
|||||
|
1000 |
1.77 |
8.13 |
0.85 |
2260 |
1320x940x1300 |
820/820 |
1700x1250x1800 |
|||||
|
1250 |
2.09 |
9.69 |
0.85 |
2660 |
1380x950x1380 |
820/820 |
1750x1250x1900 |
|||||
|
1600 |
2.45 |
11.7 |
0.85 |
3180 |
460x1120x1490 |
1070/1070 |
1850x1400x2000 |
|||||
|
2000 |
3.05 |
14.4 |
0.7 |
3600 |
490x1120x1620 |
1070/1070 |
1900x1450x2200 |
|||||
|
2500 |
3.6 |
17.1 |
0.7 |
4220 |
520x1120x1760 |
1070/1070 |
1950x1500x2200 |
|||||
|
3150 |
5.14 |
22.5 |
0.6 |
5000 |
600x1120x1860 |
1070/1070 |
2000x1550x2300 |
|||||
|
4000 |
5.96 |
27 |
0.6 |
6300 |
680x1120x2150 |
1070/1070 |
2100x1600x2600 |
|||||
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