Page 25 - 重庆智电科技有限公司

KYN28A-24 型铠装移开式交流金属封闭开关设备
Type armored removable
AC metal-enclosed switchgear

型号含义 / Model meaning

K Y N 28A - 24 Z

真空断路器 Vacuum circuit breaker
额定电压 Rated voltage (kV)
设计序号 Design Number
户内 Indoor
移开式 Remove type
金属铠装式 Metal armored

使用条件 / Conditions of Use

● 环境条件：最高温度：+40℃，最低温度：-15℃，且在 24h 内测得的平均值不超过 35℃；
● 温度条件如下 ：日相对湿度的平均值不超过 95%；月相对湿度的平均值不超过 90%；日水蒸气压力的平均值不超过 2.2kPa；月水蒸气压力的平均值不
超过 1.8kPa；
● 海拔不超过 1000m；
● 周围空气没有明显地收到尘埃、烟、腐蚀性或可燃性气体、蒸汽或盐雾的污染；
● 来自开关设备和控制设备外部的振动或地动是可以忽略的；
● 在二次系统中感应的电磁干扰的幅值不超过 1.6kV 。
● Environmental conditions: maximum temperature: +40℃ , minimum temperature: -15℃ , and the average value measured within 24 h does
not exceed 35℃ ;
● The temperature conditions are as follows: the average value of daily relative humidity does not exceed 95%; the average value of monthly
relative humidity does not exceed 90%; the average value of daily water vapor pressure does not exceed 2.2 kPa; the average value of
monthly water vapor pressure does not exceed 1.8 kPa ;
● The altitude does not exceed 1000m;
● The surrounding air is not obviously contaminated by dust, smoke, corrosive or flammable gases, steam or salt spray;
● Vibration or ground motion from outside the switchgear and control equipment is negligible;
● The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV.

技术参数 / Technical Parameters

项目 Project 单位 Unit 参数 Parameter
额定电压 Rated voltage kV 24
额定频率 Rated frequency Hz 50/60
雷电冲击耐受电压(峰值) 60 79
Lightning impulse withstand voltage (peak) 相间相对地 隔离断口
额定绝缘水平 1min工频耐受电压(有效值) kV Relatively Isolation fracture
Rated insulation 1min power frequency withstand voltage (RMS) 125 145
level
辅助控制回路工频耐受电压
Auxiliary control loop power frequency withstand voltage V 2000
额定电流 Rated current A 630,1250,1600,2000,2500,3150
额定短路开断电流 Rated short-circuit breaking current kA 20 31.5
额定短路关合电流（峰值）
Rated short circuit closing current (peak) kA 50 80
额定短时耐受电流 kA 20 31.5
Rated short-time withstand current（4s）
额定峰值耐受电流 Rated peak withstand current kA 50 80
辅助控制回路额定电压 V 直流或交流 DC or AC 110/220
Auxiliary control loop rated voltage
IP4X(断路器室门打开或隔室室间为IP2X)
防护等级 Protection level
IP4X (breaker door open or IP2X between compartments)
外形尺寸(宽×深×高) Dimensions (W×D ×H) mm 800×1810×2380 1000×1810×2380
重量 Weight Kg 840~1440

Product Catalogue 18