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智能预装式箱式变电站(美式)
Intelligent pre-installed box-type substation (US)
型号及含义/Type and meaning
YB □ □ / □ - □
变压器容量(kVA)/Capacity of transformer (KVA)
低压侧额定电压(kV)/Rated voltage at the low voltage side (kV)
高压侧额定电压(kV)/Rated voltage at the high voltage side (kV)
设计序号/Design serial No.
预装式变电站/Pre-assembled substation
功能及特点/Function and features
● 全绝缘、全密封、免少维护、可靠保证人身安全;
● 结构紧凑、体积仅为同容量欧变的1/3-1/5,高度低;
● 可采用分箱式结构,避免变压器油箱内油的污染;
● 高压侧采用双熔丝全范围保护,大大降低成本;
● 即可用环网,也可用于终端,电缆头可在200A负荷电流时紧急插拔;
● 箱体采用蜂窝式双夹层复合板,隔温又散热的功能;
● 低压侧加装电子缺相保护器,当系统内出现不正常电压时,可快速分断主进开关;
● 高压侧油浸式负荷开关或SF6负荷开关, 可电动升级, 为实现配网自动化打下基础;
● 采用油浸式S9或性能更优的S11系列变压器。
● Complete insulation and sealing , maintenance –free and less maintenance and reliable personnel safety assurance;
● Compact structure and the volume is 1/3-1/5 that of European product with same volume and the low height;
● Adoption of box structure so to avoid oil pollution in the oil tank of transformer;
● Double fuse and full range protection for the high voltage side and significant cost reduction.
● For both ring network and terminal and emergency release of cable termination at load current of 200A
● Honeycomb double layer sandwich composite board for the case with the function of thermal insulation and radiation;
● Provision open-phase protector at low voltage side and,in case of abnormal voltage in the system , fast breaking main switch;
● Oil immersed load switch or SF6 load switch for high voltage side , motorized upgrade for the achievement of automation of distribution grid.
● Adoption of oil immersed S9 or more superior S11 series transformers.
正常使用条件/Normal service condition
● 海拔高度不超过1000m;
● 环境温度:-35℃~+40℃;
● 相对湿度:日平均值不大于95%,月平均值不大于90%;
● 安装场所:无火灾、爆炸危险、化学腐蚀性气体及通风良好的场所,地面倾角不大于3°。
● Altitude :No more than 1000m;
● Ambient temperature:-35℃~+40℃;
● Relative humidity :Daily average no more than 95%,monthly average no more than 90%;
● Installatino place : The place without fire, explostion danger, checmical and corrosive gas and dust and with good ventilation and the ground inclination
angle is no more than 3° .
主要技术参数/Main technical data
名称 Name 单位 Unit 主要技术参数 Data
额定电压 Rated voltage kV 10/0.4(高压/低压)10/0.4(HV/LV)
最高工作电压 Max. operating voltage kV 12(高压侧)12(HV side)
额定频率 Rated frequency Hz 50
额定容量 Rated capacity kVA 50-1600
1分钟工频耐压 P.f withstand voltage for 1 min kV 35
雷电冲击电压 Lightning impulse withstand voltage kV 75
冷却方式 Cooling method 油浸自冷ONAN Oil immerse self cooling ONAN
高压后备熔断器开断电流 Breaking current of HV backup fuse kA 50
插入式熔断器开断电流 Breakign current of insertion fuse kA 2.5
环境温度 Ambient temperature ℃ -35~+40
线圈允许温升 Permissible temperature rise of coil ℃ 65
无载调压 No load tap changer 5%或±2×2.5%(5% or ± 2 × 2.5%)
噪声等级 Noise level db 50
防护等级 Grade of protection IP43
090