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SC(B)10 20kV 级、35kV 级 干式变压器
20kV class,
35kV class dry type transformer

型号含义 / Model meaning

S C (B) 10 - □ / □
电压等级 Voltage level
额定容量 Rated Capacity
性能水平代号 Performance level code
低压可采用箔式线圈 Low voltage can use foil coil
环氧树脂浇注型 Epoxy resin casting type
三相 Three phase

产品特点 / Features

我公司生产的 SC(B)10 系列 20kV 级、35kV 级无励磁调压干式变压器属低损耗产品，符合国家标准 GB6450、 GB/T10228 和 IEC726 的要求，并具有以下特点：
● 高性能、低损耗，为 9 型系列的换代产品。
● 选用优质硅钢片，同时大幅降低磁通密度，减小运行中硅钢片磁致伸缩量，有效降低噪音。
● 优化高压线圈结构，改善了层间电压和电容的分布，大大提高了产品耐受大气过电压和操作过电压的冲击能力，同时也改善了电场分布，使产品局放量进一步降低。
● 可配置温控系统和风冷装置，在负荷过大时自动启动风机冷却装置，有效提高设备过负荷能力。
The SC(B)10 series 20kV class and 35kV class non-exciting voltage regulating dry type transformers produced by our company are low-loss
products, which meet the requirements of national standards GB6450, GB/T10228 and IEC726, and have the following characteristics:
● High performance, low loss, and a replacement for the 9 series.
● Select high-quality silicon steel sheet, and greatly reduce the magnetic flux density, reduce the amount of magnetostriction of the silicon
steel sheet during operation, and effectively reduce noise.
● Optimize the structure of the high-voltage coil, improve the distribution of voltage and capacitance between the layers, greatly improve the
product's ability to withstand the atmospheric overvoltage and operating overvoltage, and also improve the electric field distribution, so that
the product volume is further reduced.
● The temperature control system and air-cooling device can be configured to automatically start the fan cooling device when the load is too
large, which can effectively improve the overload capacity of the equipment.

技术参数 / Technical Parameters

20kV 级 SC(B)10 系列无励磁调压配电变压器性能参数表
20kV class SC(B)10 series non-excitation voltage regulating distribution transformer performance parameter table

电压组合 不同的绝缘耐热等级下的负载损耗 (W)
额定容量 联结组标号 Voltage combination (kV) 空载电流 Load loss at different insulation heat ratings 空载损耗 短路阻抗
Rated Junction No-load No-load Short circuit
Capacity group label 高压分接范围 current loss impedance
(kVA) 高压 High voltage tap 低压 (%) B F H (W) (%)
(H.V.) (L.V.) (100℃) (120℃) (145℃)
range (%)
50 2.2 1160 1230 1320 340
100 2.0 1880 1990 2130 540
160 1.6 2340 2470 2660 675
200 1.6 2800 2940 3140 740
250 1.4 3260 3420 3710 840
315 1.4 3890 4080 4370 970
400 1.2 4650 4840 5180 1150
500 20 1.2 5510 5790 6170 1350 6.0
Yyn0 ±5
630 22 0.4 1.0 6530 6840 7360 1530
Dyn11 2×2.5
800 24 1.0 7810 8260 8830 1750
1000 0.8 9230 9780 10450 2070
1250 0.8 10920 11540 12350 2380
1600 0.8 13090 13870 14860 2790
2000 0.6 15480 16380 17570 3240
2500 0.6 18380 19380 20710 3870
2000 0.6 16910 17860 19000 3240
8.0
2500 0.6 20230 21280 22700 3870
注：表中所列的负载损耗为括号内参考温度（见 GB1094.11 的规定）下的值。
Note: The load loss listed in the table is the value under the reference temperature in parentheses (see GB1094.11).
Product Catalogue 04