文件编号:
NDT2920257
文件版本:
3
地址:上海市浦东新区申江南路
2000
号
邮编:
201315
电话:
(021)68586699
传真:
(021)23025796
第
9
页
共
17
页
1.5Is
≤
I
<
Ii
精度
accuracy
(
%
)
±
10
注:反时限时动作曲线符合
ts=
(
1.5Isd
)
2
×
Tsd/I
2
,定时限动作时间跟踪
Tsd
整定值。
ts
:短路短延时动作时间
Tsd
:短路短延时动作时间整定值
I
:实际运行电流
Isd
:短路短延时动作电流整定值
Note: Inverse time curve is satisfied ts=
(
1.5Isd
)
2
×
Tsd/I
2
Fixed time action follows Tsd setting value.
ts: Short circuit short-time delay Tsd: Short circuit short-time delay setting time
I
:
working current Isd: Short circuit short-time delay setting current
4
)短路瞬时保护(见表
7
)
Short circuit instantaneous protection(Table 7)
瞬时保护功能防止配电系统的金属性固体短路,此类故障短路电流比较大,需要快速断开。
Short circuit short-time delay protection is used to prevent short cirtuit of power distribution system.The
current of shrt circuit is high, which is needed quick break.
表
7 Table 7
脱扣特性
Tripping
Characteristics
Ii(
×
In)
见表
3 See table 3
脱扣时间
Tripping time
≤
0.85Ii
不脱扣
Non-tripping
≥
1.15Ii
<
50ms
4.
工作环境
Working Environment
4.1
存放的环境条件见下表
8
:
Storage condition is shown as follow Table 8:
表
8
存放环境条件表
Table 8 Storage condition
项目
Item
规范
Specifications
周围温度
Ambient temperature
-40
℃
~
+75
℃
相对湿度
Relative humidity
(环境温度
25
℃时)≤
95%
(when ambient temperature is
25
℃
)
≤
95%
4.2
使用环境
Environment for application
(
1
)不要安装于含有爆炸气体的环境里,否则有引发爆炸的危险;
(
2
)请勿安装于特别潮湿的地方;
(
3
)不要安装在外磁场大于地磁场
5
倍的地方,否则断路器不能正常工作;
(
4
)不要安装在振动大于
10m/s
2
的地方;
(
5
)不要安装在气体介质能腐蚀金属和破坏绝缘的地方。
(
6
)温度降容。
(1) Do not install the breaker in explosive environment, or hazard of explosion will be resulted
;
(2) Do not install the breaker in extremely humid locations
;
(3) Do not install the breaker in places where external magnetic field is more than 5 times of the
geomagnetic field, or the breaker cannot work normally
;
(4) Do not install the breaker in places with vibration more than 10m/s
2
;