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CRW1智能型万能式断路器

更新:2013-10-30 8:48:19      点击:
  • 产品品牌   
  • 产品型号   CRW1
  • 产品描述

    CRW1智能型万能式断路器,CRW1万能断路器是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于CRW1智能型万能式断路器、CRW1万能断路器型号,CRW1智能型万...

产品介绍

CRW1万能断路器适用范围

CRW1系列智能型万能式断路器适用于交流50Hz,额定电压至690V, 额定电流400A~4000A的配电网络中,用来分配电能和保护线路及电源设备免受过载,欠电压, 短路,单相接地等故障的危害,断路器具有智能化保护功能,故障判断准确,选择性好,灵敏度高,能提高供电可靠性,避免不必要的停电。同时也可带有通讯接口,可实现远距离遥控, 以满足控制中心和自动化系统的要求。CRW1万能断路器具有隔离功能。

产品符合GB14048.11IEC60947-1IEC60947-2等标准。

CRW1万能断路器型号含义

CRW1万能断路器分类

按安装方式分:a)固定式    b )抽屉式 

按操作方式:a ) 电动操作  b )手动操作(检修、维护用)

按极数分:a ) 三极  b )四极

按脱扣器种类分:a ) 智能型过电流脱扣器 b )欠电压瞬时(或延时)动作脱扣器句分励脱扣器。

按过电流脱扣器性能分:a ) 具有过载长延时反时限、短延时反时限、短延时定时限、瞬动功 能,可由用户自行设定,组成所需要的保护特性;b )单相接地保护功能;c ) 显示功能:整定电流ir显示,动作电流显示,整定时间、动作时间显示;d ) 报警功能,过载报警。

自检功能:过热保护,微机自诊断;f)试验功能;g ) 负载监控功能;h ) 热模拟功能;i ) MCR功能;j ) 故障记忆功能;k ) 按保护特性和辅助功能,控制器分为L型、M型、H型。

CRW1万能断路器工作条件

周围空气温度

a )上限值不超过|40口; b )下限值不低于-51; c )24h的平均值不超过+35℃;

注:(1)下限值为-10℃或-25℃时的工作条件时,在订货时用户须向本公司申明;

    (2)上限值超过+40℃或下限值低于-25℃时的工作条件,用户应与本公司协商。

海拔:安装地点海拔不超过2000m。

大气条件:最高温度为+40℃时,空气相对湿度不超过50%,在较低温度下可以允许有较高的相对湿度:例如20℃时达90%,对由于温度变化偶尔产生的凝露,应采取特殊的措施。

污染等级:3级。

安装类别:断路器主电路及欠压脱扣器线圈、电源变压器初级线圈的安装类别为IV,其余辅助电路,控制电路安装类别为III。

安装条件:断路器应按照本说明书的安装要求安装,断路器的垂直倾斜度不超过5°。

 

CRW1万能断路器主要技术参数

断路器的基本参数见表1

 

 

 

壳架等级额定电流 lnm A

额定电流   ln A

额定电压 Ue V

额定极限短路分断能力lcu kA

额定运行短路分断能力lcs kA

额定短时耐受电流lcw kA(1s)

飞弧距离  mm

400V

690V

690V

400V

2000

400,630,800,1000,1250, 1600,2000

50Hz   400    690

65/80

40/50

40/50

30/40

40/50

0

3200

2000,2500, 2900,3200

80/100

50/65

50/65

40/50

65

4000*

3200,3600, 4000

80/100

50/65

50/65

40/50

65

注:分子为标准型技术指标、分母为高分断型技术指标。4000*A为3200A的增容型。

断路器在不同环境温度下的降容系数见表2

                                           表2

环境温度

+40℃

+45℃

+50℃

+55℃

+60℃

允许持续  工作电流

2000A

1ln

0.95ln

0.9ln

0.85ln

0.8ln

3200  4000A

1ln

0.92ln

0.86ln

0.80ln

0.74ln

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