断路器用固封极.pdf

EP12/1250-
EP12/1250- Embedded pole Drawing and TechnicalSpecifications
断路器用固封极
Embedded pole for circuit breaker
EP12/1250- 型固封极柱外形图及技术参数
EP12/1250- Embedded pole Drawing and TechnicalSpecifications
MAIN TECHNICA DATA
MECHANICAL DATA OF CIRCUIT-BREAKING EQUIPPED WITH THE
INTERRUPTERS
FITTING LIST DRAWINGNO.
断路器用固封极柱
Embedded pole for circuit breaker
EP12/1250- 型固封极柱外形图及技术参数
EP12/1250- Embedded pole Drawing and TechnicalSpecifications
主要技术参数 MAIN TECHNICA DATA
1 额定电压 Rated voltage 12KV
2 额定电流 Rated current 1250A
3 额定频率 Rated frequency 50HZ
4 额定短路开断电流 Rated short-circuit breaking current
5 额定短路开断电流开断次数 Operations of short-circuit breaking current interruption 30 次
6 额定短路关合电流 Rated short-circuit making current 80KA
7 额定峰值耐受电流 Rated peak withstand current 80KA
8 额定短时耐受电流(4 秒) Rated short-time withstand current(4s)
9 额定单个电容器组开断电流 Rated single capacitor bank breaking current 630A
10 额定背对背电容器组开断电流 Rated back-to-back capacitor breaking current 400A
11 短时(1min)工频耐受电压 Short-time(1min) power-frequency withstand voltage 49KV
12 雷电冲击耐受电压(峰值) Lighting impulse withstand voltage(peak) 85KV
13 额定触头压力下的回路电阻 Circuit resistance at rated contact force ≤16μΩ
14 机械寿命 Mechanical life 30,000 次
15 触头自闭力 Contact closing force due to bellows and atmosphere 100±30N
16 额定开距下的触头反力 Counterforce at rated contact stroke