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China SC(B)10, 11 Dry Type Cast Transformer Factory - Flame Retardant, Maintenance-Free, Low Noise Suppliers
Transformer model meaning
Product Standards
GB/T10228-1997, GB6450-1986, JB/T10088-2004, GB4208-1993
Rated high voltage: 10 (11, 10 .5, 6 . 6, 6 .3, 6)kV
Rated low pressure: 0 .4kV
Connection group: Dynl1orYY
High voltage tapping range: ±5% or ±2×2 .5%
Insulation level: LI75AC35/LI OAG5
Frequency: 50Hz
Product Features
◇ Iron Heart
The core is made of imported high-quality cold-rolled silicon steel sheets, with full oblique joint structure, and the core column is made of The core surface is sealed with epoxy resin paint, which reduces the no-load loss and no-load Current and core noise, clips and fasteners are specially surface treated to further improve the product appearance quality.
◇ High voltage winding
The high-voltage winding is vacuum cast with epoxy resin with filler, which greatly reduces the partial discharge and improves the electrical strength of the coil. The inner and outer walls of the winding are filled with glass fiber mesh panels, which enhances the mechanical strength of the coil and improves the product 's ability to resist sudden short circuits. The coil will never crack.
◇ Low voltage winding
The low-voltage winding adopts a foil structure, which solves the problem of axial helix angle when winding, making the ampere-turn more balanced. At the same time, the coil adopts an axial cooling air duct to enhance the heat dissipation capacity. DMDEpoxy resin pre - impregnated cloth, integrally cured and formed.
Main advantages of the product
Low loss, low noise, and low partial discharge;
High moisture resistance, high reliability and maintenance-free;
The high pressure is a multi-layer segmented cylindrical structure;
Low pressure is a foil structure with longitudinal airway;
Flame retardant resin, curing molding;
Multifunctional temperature protection control system;
Square tube clamp structure;
Low temperature and low noise.
Overview
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. After winding, it is vacuum dried. The entire pouring and curing process is operated in full accordance with the process requirements. All processes The process needs to be strictly monitored and adjusted according to the situation. The precision manufacturing process of casting makes the coil free of bubbles and holes, so that the finished transformer can achieve high-quality operation effect.
◇ Temperature control system and air cooling system
The cross-flow top-blowing cooling fan is used, which has the characteristics of low noise, high wind pressure, beautiful appearance, etc. The overload capacity of the transformer is improved. The temperature control adopts an intelligent temperature controller to improve the safety and reliability of the transformer operation.
◇ Protect the housing and the busbar
The protective shell provides further safety protection for the transformer, and the protection level is IP20, IP23 etc., the shell material has cold Rolled steel plate, stainless steel plate, etc. are available for users to choose. Low-voltage outlets use standard busbar outlets, side outlets and top outlets are both available, and special outlet methods can also be designed for users.
◇ Transformer output mode
Conventional outgoing wires, standard closed busbars and standard side outgoing wires can be manufactured. ed according to different interface forms, and can also be customized according to the user. Users require special wiring design.
Model meaning
10kV class SC(B)10Series technical parameters
| Rated capacity | Voltage combination (kV) | Connection method | loss(kW) | No-load current(%) | Impedance voltage(%) | Insulation class | weight(kg) | ||
| high pressure | Low pressure | no-load | Load (120°C) | ||||||
| 10 | 11 10.5 10 6.3 6 | 0.4 | Dyn11 or Yyno | 0.135 | 0.305 | 4.0 | 4 | F/F | 135 |
| 20 | 0.170 | 0.595 | 3.5 | 180 | |||||
| 30 | 0.190 | 0.705 | 2.6 | 330 | |||||
| 50 | 0.270 | 0.995 | 2.2 | 380 | |||||
| 63 | 0.330 | 1.210 | 2.2 | 440 | |||||
| 80 | 0.370 | 1.380 | 2.2 | 510 | |||||
| 100 | 0.400 | 1.570 | 2.0 | 590 | |||||
| 125 | 0.470 | 1.850 | 1.8 | 650 | |||||
| 160 | 0.540 | 2.130 | 1.8 | 780 | |||||
| 200 | 0.620 | 2.530 | 1.6 | 930 | |||||
| 250 | 0.720 | 2.760 | 1.6 | 1040 | |||||
| 315 | 0.880 | 3.470 | 1.4 | 1180 | |||||
| 400 | 0.980 | 3.990 | 1.4 | 1450 | |||||
| 500 | 1.160 | 4.880 | 1.4 | 1630 | |||||
| 630 | 1.340 | 5.870 | 1.2 | 6 | 1900 | ||||
| 630 | 1.300 | 5.960 | 1.2 | 1900 | |||||
| 800 | 1.520 | 6.955 | 1.2 | 2290 | |||||
| 1000 | 1.770 | 8.130 | 1.1 | 2700 | |||||
| 1250 | 2.090 | 9.690 | 1.1 | 3130 | |||||
| 1600 | 2.450 | 11.73 | 1.1 | 3740 | |||||
| 2000 | 3.050 | 14.45 | 1.0 | 4150 | |||||
| 2500 | 3.600 | 17.17 | 1.0 | 4810 | |||||
| 3150 | 5.140 | 22.50 | 0.8 | 8 | 5800 | ||||
| 4000 | 5.960 | 27.00 | 0.8 | 7100 | |||||
Overall dimensions and installation dimensions
SC(B)10 Series On-load Tap-changing Parameters
| Rated capacity | Voltage combination (kV) | Connection method | loss(kW) | No-load current(%) | Impedance voltage(%) | Insulation class | weight(kg) | ||
| high pressure | Low pressure | No load | Load (120°C) | ||||||
| 200 | 11 10.5 10 6.3 6 | 0.4 | Dyn11 or Yyno | 0.690 | 2.660 | 1.6 | 4 | F/F | 1180 |
| 250 | 0.790 | 2.900 | 1.6 | 1290 | |||||
| 315 | 0.970 | 3.610 | 1.4 | 1430 | |||||
| 400 | 1.080 | 4.240 | 1.4 | 1700 | |||||
| 500 | 1.280 | 5.150 | 1.4 | 1880 | |||||
| 630 | 1.475 | 6.270 | 1.2 | 6 | 2150 | ||||
| 800 | 1.670 | 7.400 | 1.2 | 2540 | |||||
| 1000 | 1.950 | 8.760 | 1.1 | 2950 | |||||
| 1250 | 2.300 | 10.54 | 1.1 | 3380 | |||||
| 1600 | 2.700 | 12.41 | 1.1 | 3990 | |||||
| 2000 | 3.680 | 15.22 | 1.0 | 4400 | |||||
| 2500 | 4.400 | 18.10 | 1.0 | 5060 | |||||
| 3150 | 5.650 | 23.63 | 0.8 | 8 | 6050 | ||||
| 4000 | 6.560 | 28.35 | 0.8 | 7350 | |||||
10kV class SC(B)11 Series technical parameters
| Rated capacity | Voltage combination (kV) | Connection method | loss(kW) | No-load current(%) | Impedance voltage(%) | Insulation class | weight(kg) | ||
| high pressure | Low pressure | no-load | Load (120°C) | ||||||
| 30 | 11 10.5 10 6.3 6 | 0.4 | Dyn11 or Yyno | 0.170 | 0.71 | 2.6 | 4 | F/F | 330 |
| 50 | 0.240 | 1.00 | 2.2 | 380 | |||||
| 100 | 0.360 | 1.57 | 2.0 | 590 | |||||
| 250 | 0.640 | 2.76 | 1.6 | 1040 | |||||
| 630 | 1.200 | 5.88 | 1.2 | 1900 | |||||
| 1000 | 1.590 | 8.13 | 1.1 | 6 | 2700 | ||||
| 1600 | 2.200 | 11.73 | 1.1 | 3740 | |||||
| 2500 | 3.240 | 17.17 | 1.0 | 4810 | |||||
| 3150 | 5.140 | 22.50 | 0.8 | 5800 | |||||
Note: Due to the continuous updating of products, the dimensions and weight of the products in the table may change. Please refer to the dimensions provided when ordering.
Frequently Asked Questions (FAQ)
Q1: What implementation standards do these transformers follow?
A: Our transformers comply with GB/T10228-1997, GB6450-1986, JB/T10088-2004, and GB4208-1993 standards.
Q2: What are the key insulation levels for the 10kV class?
A: The insulation level is typically rated at LI75AC35/LI OAG5, ensuring high reliability in dry-type environments.
Q3: How does the cooling system improve performance?
A: We use a cross-flow top-blowing cooling fan with low noise and high wind pressure, which significantly improves the transformer's overload capacity.
Q4: Are the windings resistant to cracking?
A: Yes, the high-voltage windings are vacuum cast with epoxy resin and glass fiber mesh panels, enhancing mechanical strength to prevent cracking.
Q5: What protection levels are available for the housing?
A: Protective shells are available in IP20, IP23, and other levels, with materials including cold-rolled or stainless steel plates.
Q6: Can the output wiring be customized?
A: Yes, we offer standard busbar outlets, side outlets, and top outlets, and we can design special wiring methods based on user requirements.