SC(B)-18 Series Dry-Type Transformer
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Product Description
- 产品描述
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Our company’s SCB10 and SCBZ series epoxy-resin cast transformers, rated at 10 kV and below, are widely used in densely populated critical locations such as high-rise buildings, petrochemical plants, power plants, subways, railway stations, docks, airports, as well as in high-voltage/low-voltage prefabricated substations and urban grid substations.
Product Implementation Standards: GB1094.1~2 “Power Transformers,” GB1094.11 “Dry-Type Power Transformers,” IEC726 “Dry-Type Power Transformers,” GB1094.3 “Power Transformers”
Part 3: Insulation Levels, Insulation Tests, and External Insulation Air Gaps; GB/T 10228: Technical Parameters and Requirements for Dry-Type Power Transformers; JB/T 10088: Sound Levels of Transformers Rated 6-220 kV.
Product Features
The SC(B)-series dry-type transformers manufactured by our company are a new generation of energy-saving and environmentally friendly dry-type transformers developed on the basis of absorbing advanced foreign technologies and cutting-edge experiences from within the industry.
The core material is made of high-permeability, low-expansion, premium-grade cold-rolled silicon steel sheets—30ZH130—produced by Nippon Steel Corporation of Japan. A step-by-step lamination process is employed to minimize no-load losses, no-load current, and noise, ensuring that the product is safe and reliable.
The coils are made using Class F or Class H resins from Switzerland’s Ciba company, offering excellent impact resistance. The coils feature no corner cracks and possess self-extinguishing properties, emitting neither toxic nor harmful gases. They exhibit outstanding insulation performance and high dielectric strength, with strong resistance to sudden short circuits. The coils also demonstrate excellent moisture resistance, enabling them to operate reliably under 100% relative humidity and other harsh environmental conditions. After shutdown, these coils can be put back into operation immediately without the need for drying. The coils are manufactured using German casting technology, which involves casting under high vacuum conditions, ensuring that the coils are free of internal air pockets. The coil surfaces are left unmodified, presenting a smooth, mirror-like finish that is both elegant and aesthetically pleasing. Moreover, the products exhibit extremely low partial discharge levels.
The fan used is an axial-flow cooling fan, characterized by low noise, energy efficiency, and uniform cooling. After the fan is started, it can enhance short-term overload capacity. It can be equipped with an intelligent temperature protection controller. The transformer temperature protection system employs the PCT linear resistance sensing principle, featuring LED temperature display to enable precise measurement and control of the transformer’s temperature. The system automatically issues alarm and trip signals, and allows for automatic or manual fan start/stop operations. It boasts high accuracy, stability, and reliability, and also provides a computer interface, offering a reliable safeguard for the safe operation of the transformer.
The enclosure is assembled from materials such as corrosion-resistant aluminum profiles, textured aluminum panels, aluminum alloy mesh panels, or stainless steel plates, offering excellent ventilation and protective performance.
◆Main Technical Parameters
Technical Parameters for 10kV-Class SCB10 and SCBZ10 Series Resin-Encapsulated Dry-Type Transformers
Rated Capacity (kVA) Voltage combination Connection Group Designation No-load loss (kW) Load loss (kW) No-load current (%) Short-circuit impedance (%) Insulation thermal rating Weight (kg) Sound level (dB) High voltage (kV) High-voltage tap range Low voltage (kV) 30 6, 6.3, 6.6, 10, 10.5, 11 ±5% or ±2 × 2.5% 0.4 Dyn10 or Dyn11 190 710 2.3 4.0 Class F 440/800 41 50 270 1000 2.1 480/840 41 80 370 1380 1.8 700/1060 41 100 400 1570 1.0 800/1160 41 125 470 1850 1.0 860/1220 41 160 540 2130 0.8 1000/1360 43 200 620 2530 0.8 1170/1530 43 250 720 2760 0.8 1300/1660 43 315 880 3470 0.7 1600/1960 44 400 980 3990 0.7 1900/2260 44 500 1160 4880 0.7 2120/2480 44 630 1340 5880 0.6 2660/3020 44 630 1300 5960 0.6 6 2540/2900 45 800 1520 6960 0.6 2860/3220 45 1000 1770 8130 0.5 3380/3740 47 1250 2090 9690 0.5 4210/4570 47 1600 2450 11730 0.4 4960/5320 49 2000 3050 14450 0.4 5740/6100 50 2500 3600 17170 0.4 6160/6420 51 3150 4300 20600 0.3 6760/7120 52 1600 2450 12960 0.4 8 5200/5590 49 2000 3050 15960 0.4 6020/6400 50 2500 3600 18890 0.4 6660/6930 51 Technical Parameters of 20kV-Class SCB9 and SCB10 Series Dry-Type Transformers
Rated Capacity (kVA) High-voltage (kV) High-voltage tap range Low-voltage (kV) Connection Group Designation Short-circuit impedance (%) No-load loss (W) Load loss (W) No-load current (%) Insulation class Noise (dB) SC(B)9 SC(B)10 SC(B)9 SC(B)10 50 20, 22, 24 ±5% or ±2 × 2.5% 0.4 Yyn0, Dyn11 6 380 340 1300 1240 2.4 F 41 100 600 540 2100 2000 2.2 42 160 750 680 2600 2470 1.8 42 200 820 740 3100 2950 1.8 44 250 940 850 3600 3420 1.6 46 315 1080 970 4300 4090 1.6 46 400 1280 1150 5100 4850 1.4 47 500 1500 1350 6100 5800 1.4 47 630 1700 1530 7200 6840 1.2 47 800 1950 1760 8700 8270 1.2 48 1000 2300 2070 10300 9790 1.0 48 1250 2650 2390 12150 11540 1.0 49 1600 3100 2790 14600 13870 1.0 50 2000 3600 3240 17250 16390 0.8 52 2500 4300 3870 20400 19380 0.8 55 Technical Parameters of 35kV-Class SCB9 and SCB10 Series Dry-Type Transformers
Rated Capacity (kVA) High-voltage (kV) High-voltage tap range Low-voltage (kV) Connection Group Designation Short-circuit impedance (%) No-load loss (W) Load loss (W) No-load current (%) Insulation class Noise (dB) SC(B)9 SC(B)10 SC(B)9 SC(B)10 50 35, 38.5 ±5% or ±2 × 2.5% 0.4 Yyn0, Dyn11 6 500 450 1500 1430 2.8 H 53 100 700 630 2200 2090 2.4 56 160 880 790 2960 2810 1.8 58 200 980 880 3500 3330 1.8 59 250 1100 990 4000 3800 1.6 60 315 1310 1180 4750 4510 1.6 61 400 1530 1380 5700 5420 1.4 62 500 1800 1620 7000 6650 1.4 63 630 2070 1860 8100 7700 1.2 63 800 2400 2160 9600 9120 1.2 66 1000 2700 2430 11000 10450 1.0 66 1250 3150 2840 13400 12730 0.9 67 1600 3600 3240 16300 15490 0.9 68 2000 4250 3830 19200 18240 0.9 69 2500 4950 4460 23000 21850 0.9 73
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The company primarily engages in the manufacturing and sales of various types of power transmission equipment, including 35 kV and below resin-encapsulated dry-type transformers, oil-immersed transformers, special-purpose transformers, and high- and low-voltage substations.
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