| 额定频率 | Hz | 50 |
| 额定电压 | kV | 12 |
| 额定短时工频耐受电压(1分钟) | kV | 42 |
| 额定雷电冲击耐受电压 | kV | 75 |
| 额定电流 | A | 630 |
| 额定触头压力下限时的回路电阻 | μΩ | ≤30 |
| 额定短路开断电流 | kA | 20 |
| 额定短路开断电流开断次数 | Times | 50 |
| 额定短时耐受电流 | kA | 20 |
| 额定短路持续时间 | s | 4 |
| 额定峰值耐受电流 | kA | 50 |
| 额定短路关合电流 | kA | 50 |
| ★额定单个电容器组开断电流 | A | 630 |
| ★额定背对背电容器组开断电流 | A | 400 |
| 额定操作顺序 | O-0.3s-CO-180s-CO | |
| 运动部分质量 | kg | 1.1 |
| 触头自闭力 | N | 100±50 |
| 额定开距下的触头反力 | N | 200±50 |
| 触头开距 | mm | 11±1 |
| 平均分闸速度(在起始75%开距时) | m/s | 1.1±0.3 |
| 平均合闸速度(在最终30%开距时) | m/s | 0.6±0.2 |
| 额定触头压力 | N | 2000±200 |
| 触头初压力 | N | 1400±100 |
| 触头合闸弹跳时间 | ms | ≤2 |
| 触头合闸和分闸不同期性 | ms | ≤2 |
| 分闸触头反弹幅值 | mm | ≤2 |
| 存储时间 | years | 20 |
| 机械寿命 | Times | 10000 |
| 触头允许磨损厚度 | mm | 3 |
注: 1. 产品符合或超过E2级和IEC 62271-100以及GB 1984-2003的要求。
2. ★为需要时提供的额定参数
外形尺寸图:BD11-12/630-20A
真空灭弧室 (TD-12/630-20)
产品简介
主要技术参数
Main technique parameter
参数名称
Parameter name 单位
Unit 数值
Value
额定电压
Rated voltage kV 12
额定电流
Rated normal current A 630
额定短路开断电流
Rated short-circuit breaking current kA 20
额定短路关合电流
Rated short-circuit making current kA 50
额定峰值耐受电流
Rated peak withstand current kA 50
额定短时耐受电流
Rated short-time withstand current kA 20
额定短路持续时间
Rated duration of short circuit S 4
额定单个电容器组开断电流
Rated single capacitor unit breaking current A 630
额定背对背电容器组开断电流
Rated back to back capacitor unit breaking current A 400
额定短时（1min）工频耐压
Rated short time power frequency withstand voltage(1min) kV 42
额定触头压力下的回路电阻
Circuit resistance at lower limit of rated contact pressure μΩ ≤30
额定短路开断电流开断次数
Rated short circuit breaking current breaking times 次
Time 30
额定雷电冲击耐受电压
Rated lightning impulse withstand voltage kV 75
机械寿命
Mechanical endurance 次
Time 10000
触头自闭力
Closing force due to bellow and atmosphere N 80±30
额定开距时的触头反力
Force required to hold contacts open at full stroke N 140±40
触头允许磨损厚度
Contact-wear allowance thickness mm 3
真空灭弧室内部气体压力
Gas pressure inside vacuum interrupter Pa ≤1.33×10ˉ3
配用断路器的机械参数
Technical specifications Circuit-breaker
项目
Project 单位
Unit 数值
Value
触头开距
Contact stroke mm 10±1
触头接触行程
Contact travel mm 2±0.5
平均合闸速度
Average closing speed m/s 0.6±0.2
平均分闸速度
Average opening speed m/s 1.1±0.2
额定触头压力
Rated contact pressure N 2000±200
触头合闸弹跳时间
Contact closing bounce time ms ≤2
触头合闸与分闸不同期性
Out of simultaneity of contact closing and opening ms ≤2
分闸触头反弹幅值
Bouncing back amplitude of opening contact mm ≤2
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