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2、ahana Ispat Limited 6kV高压开关柜技术要求Technical Requirements for 6kV High-voltage Switchgear 一. 6kV高压开关柜技术附件I. Technical Specifications of 6kV High-voltage Switchgear 1 技术标准1. Technical standardsGB3906-91DL404-91IEC2982 技术条件2. Technical conditions2.1 环境温度环境温度 最高 最低 海拔高度 1000 m年平均相对湿度 67%2.1 Ambient temper
3、ature Ambient temperature max.: min.: Height above sea level: 1,000 m Annual average RH: 67% 2.2 电气条件额定工作电压 kV额定工作电流 A（其中1台3000A）额定工作频率 50Hz额定短路开断电流 kA4秒热稳定电流值 kA中性点接地点式 中性点不接地2.2 Electrical conditions Rated working voltage kV Rated working current A (3,000A for 1 set) Rated working frequency 50Hz R
4、ated short-circuit breaking current kA 4s thermal stability current kA Neutral point grounding type N/A3 柜型及元器件3. Cabinet type and components3.1 开关柜型号中置式高压开关柜（KYN28A- 台（见图纸）防护等级 IP30 颜色： 双方以色标确定3.1 Switchgear model Middle-built high-voltage switchgear (KYN28A- set(s) (see the drawings) Protection le
5、vel IP30 Color: To be determined by both parties based on the color code3.2 母线 3.2 Busbar 3.3 断路器型号额定工作电压 kV额定工作电流 A额定开断电流 kA额定关合电流 kA额定动稳定电流 kA4秒热稳定电流 kA断路器操作机构 弹操 分合闸电源 220 V DC3.3 Breaker Model Rated working voltage kV Rated working current A Rated breaking current kA Rated making current kA Rate
6、d dynamic stability current kA 4S thermal stability current kABreaker operating mechanism Spring-operated Opening/Closing power 220V DC技术要求：Technical requirements:1） 机械寿命达10000次2） 采纳陶瓷真空灭弧室，铜铬触头材料，纵磁场触头结构3） 符合GB1984、JB3855、IEC60056标准4） 订货应满足DL/T4031035kV户内高压真空断路器订货技术条件1) The mechanical life reaches
7、up to 10,000 times2) Adopts the ceramic vacuum interrupter, chromium-copper-based contact material and longitudinal magnetic contact structure3) Conforms to the standards GB1984, JB3855 and IEC600564) The order shall meet DL/T403-Technical Conditions for Ordering 1035kV Indoor High-voltage Vacuum Ci
8、rcuit Breaker 3.4 电流互感器及电压互感器 采纳 产品，CT、PT规格见设计图纸。3.4 Current transformer and voltage transformer, adopting product, see the design drawing for CT and PT specs.3.5 零序电流互感器 选用 产品3.5 Zero-sequence current transformer, adopting product3.6 避雷器3.6 Lightning arrester避雷器为防止操作过电压采纳三相复合式过电压爱护器， The lightning
9、arrester adopts three-phase compound overvoltage protector in order to prevent operation overvoltage三相复合式过电压爱护器技术要求：Technical requirements of the three-phase compound overvoltage protector:1）爱护器放电时的电压峰值应不大于设备相间绝缘水平和相对地绝缘同意值，相间爱护特性与相对地爱护特性相同。 1) The peak voltage at the protector discharge shall not b
10、e more than the equipment phase-phase insulation level and phase-to-earth insulation allowable value; the phase-phase protection characteristics shall be the same as those of phase-to-earth protection characteristics.2）爱护器动作后的残压等于爱护器放电时的电压峰值。2) The residual voltage after the protector acts shall be
11、equal to the peak voltage at the protector discharge.3）冲击系数等于1，在各种电压波形下动作值相同。3) The impact coefficient shall be 1, with the same operating value for different voltage waveforms 4）操作过电压冲击次数许多于105。4) The operating overvoltage impact frequency shall not be less than 105.5）要求采纳硅橡胶外套，封闭型结构。5) The silicon
12、 rubber case with enclosed construction shall be adopted.6）过电压爱护器应符合下列标准： GB11032-2000交流无间隙金属氧化物避雷器 JB/T8952-199935kV及以下交流系统用复合外套无间隙金属氧化物避雷器 ZBK49005-90交流有串联间隙金属氧化物避雷器6) The overvoltage protector shall conform to the following standards: GB11032-2000 Alternating Current Metallic Oxide Lightning Arre
13、sters without Gaps JB/T8952-1999 Compound Sleeve Metallic Oxide Lightning Arrester without Gaps for AC Systems at 35kV and below ZBK49005-90 Alternating Current Metallic Oxide Lightning Arresters without Series Gaps 7）产品采纳安徽赛普电气有限公司产品。 7) Adopts products from Anhui Saipu Electric Co., Ltd.3.7 开关状态显示仪：见设计图纸，选用保定市中恒合力电气有限公司产品。3.7 Switch status displayer: See the design drawings for details. Choose the one from Baoding Zhonghe
