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中國(guó)創(chuàng)造 星瑪智造
Circuit breaker cabinet mechanism
Product Description
First, with reclosing design, in line with the operation timing of the national network breaker, in line with the requirements of "GB1984-2014 high voltage AC circuit breaker"
Second, energy storage, closing, opening logic, designed with mechanical interlocks to ensure correct operation sequence and prevent misuse.
Third, with mechanical interlocking of the isolating switch to ensure that the "five-proof" operation sequence (including forward and reverse interlocking) is met.
Fourth, optional opening operation hole
5. Reserve passive tripping, counters and other extended component positions, humanized design, convenient for retrofit
Sixth, miniaturized design. 325 wide cabinet can also accommodate
Seven, long-life design, stable and trouble-free closing and closing times ≥10,000 times

Details

序號(hào)

斷路器電氣參數(shù)

1. 

開(kāi)距

8~10 mm

2. 

超程

2~3mm

3. 

相間中心距

150mm±2

4. 

三相合閘不同期

2ms

5. 

三相分閘不同期

2ms

6. 

合閘彈跳

2ms

7. 

分閘彈跳

2ms

8. 

合閘速度

0.6ms±0.2

9. 

分閘速度

1.2ms±0.2

10. 

工頻耐壓

42/45kV

11. 

雷電沖擊電壓

75/85kV

12. 

機(jī)械壽命(斷路器)

10000

13. 

電氣壽命

E3級(jí)

14. 

主回路電阻

150μΩ

15. 

開(kāi)斷、動(dòng)熱穩(wěn)定性及峰值耐受電流

20kA,20kA/4S50KA

16. 

溫升

1.1x630A