Siemens 3AH3 User manual

Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Vacuum Circuit-Breaker 3AH3
7.2kV to 36kV
真空断路器 3AH3
7.2kV 至36kV
Operating Instructions/操作手册 Order-No:/订货号: 9229 9860 174 0D-SLC PTD MC
All right reserved / 版权所有
© Siemens AG 1996 &SLC PTD MC 2005
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
主要零部件说明
13. Checking marking 触头磨损标记指示
15. Pole plate
16.1 Upper post insulator 上绝缘子
16.2 Lower post insulator 下绝缘子
19. Pole assembly,
complete
相极柱装配
20. Upper interrupter
support
上极帽
27. Upper terminal 上接线排
28. Strut 绝缘支撑杆
28.1 Centering piece 衬垫
29. Lower terminal 下接线排
29.1 Flexible connector 软连接导电带
29.2 Clamp 导电夹
30. Vacuum interrupter 真空泡
31. Fixed contact piece 静触头
31.1 Connection surface 接触面
32. Insulator 绝缘外壳
33. Arcing chamber 灭弧室
34. Metal bellows 金属波纹管
35. Guide 导向管
36. Moving contact piece 动触头
36.1 Drive and terminal
bolt
动触杆
40. Lower interrupter
support
下极帽
48. Insulating operate
rod
绝缘拉杆
48.6 Angled lever 拐臂
49. Contact pressure
spring
触头压力弹簧
50. Hand crank 手柄
50.1 Opening for fitting
hand crank
手柄储能操作孔
50.2 (Charging) gearing 减速箱
50.4 Motor M1 电动机 M1
50.4.1Position switch 位置开关
50.5 Hand crank coupling 手柄耦合杆
50.6 Adapter for hand
crank
手柄适配头
51. Rating plate 铭牌
51.1 Opening for rating
plate
铭牌面板开孔
53. ″Close″pushbutton 合闸按钮
53.1 Closing solenoid Y9 合闸线圈 Y9
54. ″Open″pushbutton 分闸按钮
54.1 Shunt release Y1 一级分励脱扣器 Y1
54.2 Shunt release Y2 二级分励脱扣器 Y1
54.3 Current transformer-
operated release Y4
电流互感器驱动型脱扣
器Y4
54.4 Undervoltage release
Y7
欠电压脱扣器 Y7
55. ″Closing spring
charged″indicator
″合闸弹簧储能″
指示器
55.1. Opening for indicator
″Closing spring
charged″
″合闸弹簧储能″
指示器面板开孔
58. Operating cycle
counter
操作计数器
58.1 Opening for
operating-cycle
counter
操作计数器面板开孔
59. ON-OFF indicator 合分闸指示器
59.1 Opening for
″closed/open″
indicator
合分闸指示器面板开孔
60. Mechanism housing 操动机构箱
60.1 Cover 机构箱面板
60.2 Transport hole 运输起吊孔
60.3 Crane hook symbol 起吊标志
61. Dashpot 分闸缓冲器
62. Closing spring 合闸弹簧
63. Breaker shaft 主轴
64. Opening spring 分闸弹簧
66. Closing damper 合闸缓冲
68. Auxiliary switch S1
(6NO+6NC)
辅助开关 S1
(6 常开+6 常闭)
68.0.1.Extended auxiliary
switch S1
(12NO+12NC)
延长型辅助开关 S1
(12 常开+12 常闭)
68.1 Operating rod (for
auxiliary switch S1)
操动杆 (针对辅助开关
S1)
68.7.1 Low voltage plug
connector X0 (64-
pole)
64 针低压接插件 X0
69. Contactor 防跳接触器
70. Earthing bolt M12 接地螺栓
90. Mechanical
interlocking
机械联锁
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Contents Page
General 1/1
Technical data 1/2~1/9
Type designation 1/2
Rating plate 1/2
Standards and specification 1/3
Ambient temperature/humidity
loadability 1/3
Site altitude 1/4
Electrical data 1/5
Operating times 1/6
Switching duties 1/6
Motor operating mechanism 1/6
Auxiliary switch 1/7
Low-voltage plug connector 1/7
Shunt closing release 1/7
Shunt release 1/7~1/8
Undervoltage release 1/8
CT-operated release 1/8
Breaker tripping signal, cut-out
Switches (S6 and S7) 1/9
Varistor module (V1 to V3) 1/9
Electrical local closing/
Electrical interlocking 1/9
Mechanical interlocking 1/9
Dimensions and weights 1/9
Description 2/1~2/5
Construction 2/1~2/3
Vacuum interrupters 2/4
Complement 2/5
Installation 3/1~3/4
Installing in cubicle or on truck 3/1
Flat bar connection 3/1~3/2
Control leads 3/2
Earthing 3/2
Circuit documents 3/2
Function schematic diagram 3/3~3/4
Operation 4/1~4/2
Commissioning 4/1~4/2
Charging and closing spring 4/2
Closing 4/2
Tripping 4/2
Maintenance 5/1~5/4
Safety measures 5/1
Servicing 5/1
Cleaning 5/1
Abnormal operating conditions 5/2
Checking the contact systems 5/2
Checking the vacuum 5/2
Service life 5/3
Accessories and spare parts 5/4
Note: The items illustrated in the Figures are
enumerated in the fold–out central
legend.
When ordering the operating instructions please
quote the order No.9229 9860 174 0D- SLC PTD
MC.
内容 页码
概述 1/1
技术数据 1/2~1/9
型号表达方式 1/2
铭牌 1/2
适用标准 1/3
环境温度,湿度与负载能力 1/3
安装场所高度 1/4
电气数据 1/5
额定操作次数 1/6
切合负载范围 1/6
马达操动机构 1/6
辅助开关 1/7
低压接插件 1/7
合闸线圈 1/7
分励脱扣器 1/7~1/8
欠电压脱扣器 1/8
电流互感器驱动型脱扣器 1/8
断路器脱扣信号及消除开关(S6 和S7) 1/9
压敏电阻模块 (V1 至V3) 1/9
电气就地合闸/电气联锁 1/9
机械联锁 1/9
尺寸及重量 1/9
说明 2/1~2/5
结构 2/1~2/3
真空灭弧室 2/4
补充 2/5
安装 3/1~3/4
安装于柜内或 手车上 3/1
平滑母排连接 3/1~3/2
二次控制引线 3/2
接地 3/2
二次文件 3/2
二次控制线路图 3/3~3/4
操作 4/1~4/2
使用 4/1~4/2
储能及合闸弹簧 4/2
合闸 4/2
脱扣 4/2
维护 5/1~5/4
安全措施 5/1
维护 5/1
清理 5/1
非正常使用环境 5/2
检查触头磨损情况 5/2
检查灭弧室的真空度 5/2
使用寿命 5/3
附件及备件 5/4
注意: 图例中的标项详见主要零部件说明表.
如需定购操作手册请咨询订货号 9229 9860 174
0D SLC PTD MC.
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
!WARNING
This equipment contains hazardous volt-
ages and mechanical parts which move
at high speed and may be controlled
remotely.
Non-observance of the safety instructions
can result in severe personal injury or
property damage.
Only qualified personnel should work on
or around this equipment after becoming
thoroughly familiar with all warnings,
safety notices, and maintenance procedu-
res contained herein.
The successful and safe operation of this
equipment is dependent on proper
handling, installation, operation and
maintenance.
General:
Siemens 3AH3 vacuum circuit-breakers (V-
breaker) are of the triple-pole indoor type for rated
voltages between 7.2 and 36kV.
The vacuum circuit-breaker consists of the
mechanism housing complete with stored-energy
mechanism and control elements, the three poles
with vacuum interrupters, cast-resin insulators and
operating rods.
The mounting position (relative to the vacuum
interrupters) is vertical. Under certain conditions
horizontal mounting position is possible.
Horizontal mounting position needs to be
indicated when ordering. Please contact your
Siemens representative. The vacuum circuit-
breaker can be used in practically any system
design.
Under normal operating conditions, the vacuum
circuit-breaker is maintenance free.
!警告
本设备在运行时带有危险电压, 以及
可以通过远控实现高速运动的机械部
件.
违反正确安全操作说明有可能导致操
作人员受伤或破坏性损失.
只有完全熟悉本书所有警告,安全条例
以及产品维护程序的人员才可以使用
维护本设备.
本设备成功和安全的运行取决与正确
的搬运, 安装, 操作以及维护.
概述:
西门子 3AH3 真空断路器是三相户内型, 额定电压
从7.2kV 至36kV.
真空断路器由带有储能机构的操动机构箱, 控制元
件, 带灭弧室的三相极柱装配, 环氧浇注绝缘子以及
绝缘拉杆.
断路器安装位置为垂直 (相对于灭弧室). 在某些情
况下,水平安装位置是可能的,但需要在订货时注明,
并与西门子办事处联系.断路器适用于各种电力系统
场合.
在正常使用条件下, 本断路器是完全免维护的.
- 1/1 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Technical data
Type designation
3AH3 vacuum circuit-breakers are identified by a
machine-readable product designation made up of a
series of figures and letters.
3 A H 3 1 1 7 - 7
(See catalog HG11 for selection and ordering data of
the respective circuit-breaker)
Rating plate
The rating plate which can be read in the operating
position, contains the following information:
1 Manufacturer 7 Rated short-circuit
duration
2 Type designation 8 Weight
3 Serial number 9 Rated operation
sequence
4 Design code 10 Rated frequency
5 Year of manufacture 11 Rated lightning impulse
6 Rated normal current withstand voltage
12 Rated short-circuit
breaking current
13 Rated voltage
Fig.1/1
Rating plate
Note: in the event of any queries state the type
designation(2), designation code(4) and the serial
number(3).
技术数据
型号表达方式
3AH3 真空断路器按照下述一系列数字及字母代码组成
的表达式来标注.
Basic type
基本型号
Rated voltage
额定电压
Rated short circuit breaking current
额定开断电流
Rated normal current
额定电流
(断路器具体订货选型参数见样本 11)
铭牌
铭牌可以从操作位置看到, 包括以下参数:
1 制造商 7 热稳定时间
2 型号 8 重量
3 系列号 9 额定操作顺序
4 设计编号 10 额定频率
5 制造年月 11 额定雷冲击耐受电压
6 额定电流 12 额定短路开断电流
13 额定电压
图.1/1
铭牌
注意:如有任何询问请表明型号(2), 设计编号(4), 系列号
(3).
- 1/2 -
50 3150
3117-7 2Y 3117-7
3150
2Y
50
O- O-
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Standard specifications
The 3AH3 vacuum circuit-breaker comply with the
standards of IEC62 271-100, IEC60 694, BS 5311 and
DIN VDE 0670. The V-breakers 3AH3 for 15kV rated
voltage meet the requirements of the American
standards ANSI C37 with respect to their insulating
capacity.
Ambient temperature/humidity and loadability
The 3AH3 V-breakers are designed for the normal
operating conditions laid down in the standards.
Permissible ambient temperatures:
Maximum value =+40C
Average over a period of 24 hours =+35C
Minimum value = -5C
Permissible atmospheric humidity:
Relative humidity, 24 hours mean <95%
Relative humidity, 1month mean <90%
Under these conditions condensation may occasionally
occur. The rated normal currents listed in Fig. 1/4 were
laid down for 40°C ambience in accordance with DIN
VDE/IEC. Use under conditions other than normal is
possible with certain measures that can be implemen-
ted on request.
The maximum permissible load current as a function of
the 3AH3 V-breaker ambient temperature has been
plotted in Fig.1/2. The load currents indicated apply to
open-type switchgear. Metal-enclosed switchgear must
be derated as specified by switchgear manufacturer.
Determination of the load characteristic number
负载特性曲线号的确定
Rated normal current load characteristic number
额定电流 负载特性曲线号
1250A 2
2000A 4
2500A 5
3150A 6
4000A 7
适用技术标准
西门子 3AH3 真空断路器完全符合 IEC 62 271-100, IEC
60 694, BS 5311 以及 DIN VDE 0670 的所有条款, 而且
对于 15kV 产品 还满足 ANSI C37 中的绝缘部分.
环境温度,湿度与负载能力
3AH3 真空断路器按正常使用条件设计可在以下温度和
湿度时正常工作.
最高温度 =+40C
24 小时平均温度 =+35C
最低温度 = -5C
允许大气湿度:
24 小时相对平均湿度 <
95%
1个月中相对平均湿度 <
90%
在上述湿度时,可能会出现凝露.图1/4 是依照 DIN
VDE/IEC 标准环境温度为 40°C时额定电流函数曲线.
采取一定措施后断路器可在超标环境运行.
3AH3 最大允许负载电流是环境温度的函数, 图1示出了
这些曲线. 它们适用于断路器安装在敞开式的开关柜中.
如装于金属封闭式的开关柜中,则额定电流将有所减小,
应有开关柜制造厂重新确定.
-1/3 -
Load current A
负载电流
Fig.1/2 Maximum permissible load current as a function of the switch
ambient temperature
图. 1/2 最大允许负载电流与开关环境温度的函数关系
Ambient temperature °C
环境温度
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
安装场所的高度
断路器的额定绝缘水平(额定冲击耐受电压, 额定工频耐
受电压) 1)是根据 VDE 标准 0111 和IEC-71 基于标准状
态(大气压 1013 h Pa, 温度 20 °C和相对湿度 11g/m 3)
制定的, 即在海平面处的大气标准条件.随着海拔高度的
升高, 空气密度变小, 绝缘体的空气绝缘水平下降.从海平
面升高到 1000m,上述的额定绝缘水平略下降 9%, 对此,
VDE,IEC 以及其他标准都认为是允许的.
这些标准中没有对海拔高度大于 1000m 时的绝缘水平
作出规定, 应由客户和制造商根据具体情况达成协议解
决.
对此,我们有如下建议:
既然海拔 1000m 以下的绝缘水平机算方法被认为是有
效的, 它同样应适用于更高海拔的情况. 海拔修正系数 a
应
以1000m 处的绝缘水平为基准,比海平面绝缘水平大约
下降 9%(相对应于 0.91 或1/1.1).
以下公式可用于设备选择参考:
额定耐受电压选择值 2)
要求额定耐受电压 2)
>(1.1xa)
例如:
安装场所海拔高度 3000 m
要求额定冲击耐受电压 95kV
(对于 15kV 等级按照 ANSI 标准)
修正系数 a 0.73
(参照图 1/3)
额定冲击耐受电压选择值:
95kV
1.1x0.73 =118kV
额定电压为 24kV, 标准 2(额定雷冲击耐压 125 kV)的开
关设备可以满足要求.
于是安装场所实际绝缘水平
耐受电压 3)=a* 被选择开关设备的额定耐受电压 2)
图.1/3
Relationship between the correction factor a and the
site altitude.
修正系数 a与海拔高度的函数关系.
以下为适用定义:
1) 额定耐受电压 2)=根据 DIN,VDE,IEC 标准所提供的海
拔为零时的要求值
耐受电压 3 )=给定海拔高度的实际值.
2)额定雷冲击耐受电压
额定工频耐受电压
3) 雷冲击耐受电压
工频耐受电压 -1/4 -
Altitude of site above sea level/海拔高度
Correction factor/修正系数
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Electrical data
3AH3 vacuum circuit-breaker
电气参数
3AH3 真空断路器
U
(kV)
UW
(kV)
Us
(kV)
ISC
(kA)
tth
(s)
1250A
2000A
2500A
3150A
4000A
Ima
(kA)
D.C.
(%)
PA
(mm)
(11)
50 3 125 36 210 EU 3AH3 057-2*
EU 3AH3 057-6*
EU 3AH3 057-7*
275 EU 3AH3 077-8*
63 3 160 36 275 EU 3AH3 078-2*
EU 3AH3 078-6*
EU 3AH3 078-7*
7.2
60 20
EU 3AH3 078-8*
50 3 125 36 210 EU 3AH3 117-2
EU 3AH3 117-6
EU 3AH3 117-7
275 EU 3AH3 127-8
63 3 160 36 275 EU 3AH3 128-2**
EU 3AH3 128-6**
EU 3AH3 128-7**
12
75 28
EU 3AH3 128-8**
50 3 125 36 210 EU 3AH3 167-2**
EU 3AH3 167-6**
EU 3AH3 167-7**
275 EU 3AH3 177-8**
63 3 160 36 275 EU 3AH3 178-2**
EU 3AH3 178-6**
EU 3AH3 178-7**
15 95 36
EU 3AH3 178-8**
50 3 125 36 210 EU 3AH3 217-2**
EU 3AH3 217-6**
EU 3AH3 217-7**
275 EU 3AH3 227-8**
63 3 160 36 275 EU 3AH3 228-2**
EU 3AH3 228-6**
EU 3AH3 228-7**
17.5 95 38
EU 3AH3 228-8**
24 125 50 40 3 100 36 275 EU 3AH3 266-6
110 50
50 3
137 36 275 EU 3AH3 267-7
31.5 3 80 36 350 EK 3AH3 305-2***
EK 3AH3 305-4***
EK 3AH3 305-6***
36 170 70
40 3 100 36 350 EU 3AH3 306-6***
*Us=32kV; **Us=42kV;***Us=85/95kV,Uw=185/195kV.
Note: available
1. Rated voltage (maximum permissible system voltage) at 50/60Hz.
2. Rated lightning impulse withstand voltage (peak value)
3. Rated power frequency withstand voltage (RMS value)
4. Rated short-circuit current
5. Rated short-circuit duration
6. Type designation
7. Rated normal current
8. Rated short-circuit making current
9. DC component of rated short-circuit breaking current
10. Pole center distance
11. Switching duties U= Rapid load transfer
K= rapid auto-reclosure +U
E= electrical operating energy
Fig.1/4 electrical data for 3AH3 vacuum circuit-breaker
标注 : 可提供
1. 额定电压 (系统最高电压) 频率 50-60Hz
2. 额定雷冲击耐受电压 (峰值)
3. 额定工频耐受电压 (有效值)
4. 额定短路电流
5. 热稳定时间
6. 型号
7. 额定电流
8. 额定关合电流
9. 额定短路开断电流时的直流分量
10. 相中心距
11. 操作功能 U= 快速负荷转移
K= 快速自动重合闸 +U E= 电动储能机构
图.1/4 3AH3 真空断路器的电气参数 - 1/5 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Operating times
动作时间
Closing time/合闸时间
Spring charging time/ 弹簧储能时间
Opening time/分闸时间 Shunt release/ 分励脱扣器 (Y1)
Supplementary release 3AX11/ (Y2,Y4,Y7)
辅助脱扣器 3AX11
Arcing time/燃弧时间
Break time/开断时间 Shunt release/分励脱扣器 (Y1)
Supplementary release 3AX11/ (Y2,Y4,Y7)
辅助脱扣器 3AX11
Dead time/断电时间
Close-open-time/金属短接时间 Shunt release/分励脱扣器 (Y1)
Supplementary release 3AX11/ (Y2,Y4,Y7)
辅助脱扣器 3AX11
Minimum pulse duration/指令的最短时间
″Close″/″合闸″Closing solenoid/合闸线圈 (Y9)
″Trip″/ ″脱扣″Shunt release/分励脱扣器 (Y1)
″Trip″/ ″脱扣″Supplementary release 3AX11 (Y2,Y4,Y7)
辅助脱扣器 3AX11
Shortest pulse duration of breaker tripping signal for 1st shunt release /一级分励脱扣器最小脱扣脉冲信号时间
Shortest pulse duration of breaker tripping signal for 2nd and 3rd shunt release /2 级和 3级分励脱扣器最小脱扣
脉冲信号时间
ms
s
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
<80
<15
<65
<45
<15
<80
<60
300
<90
<70
45
40
20
>15
>10
Fig.1/5 operating times/ 图.1/5 动作时间
Closing time = the interval of time between the initiation of
the closing operation and the instant when the contacts
touch in all poles.
Opening time = the interval of time between the initiation of
the opening operation and the instant when the contacts
separate in all poles.
Arc time = the interval of time between the instant of the
first initiation of an arc and the instant of final arc extinction
in all poles.
Breaking time = the interval of time between the beginning
of the opening time of a circuit breaker and the end of the
arcing time.
Close-open-time = the interval of time (in a make-break
operation cycle) between the instant when the contacts
touch in the first pole in the closing process, and the instant
when the arcing contacts separate in all poles in the
subsequent opening process
Switching duties
The operating mechanisms of the 3AH3 circuit-breakers are
suitable for rapid auto-reclosure. Breakers for a rated short-
circuit breaking current of ≥40kA are, at rated data levels,
suitable for rapid load transfer and till 31.5kA for rapid auto-
reclosure.
Motor operating mechanism
The maximum DC power input is 500 W (approx.) the
maximum AC power input is 650VA (approx.). During part
of the short spring charging time the motor operate in the
overload range. The recommended rating for motion
protection devices are shown in Fig.1/6 (the protection
devices are not supplied with the vacuum breakers and
must be ordered separately)
*) MCB with G characteristic
Fig.1/6 Rated currents of motor protection device.
The supply voltage may deviate from the rated value by
-15% to +10%.
合闸时间 =从合闸操作开始到三相触头全部接触这一瞬间该
段时间间隔.
分闸时间 = 从分闸操作开始到三相触头全部分离这一瞬间的
该段时间间隔.
燃弧时间 = 从燃弧初始到各相电弧全部熄灭瞬间的时间间隔.
开断时间 = 从断路器开始分闸到燃弧结束的时间间隔.
合-分时间 = 在合闸过程中当第一相触头接触瞬间到紧接着的
分闸操作中三相燃弧触头全部分离瞬间的时间间隔.
切合负载
3AH3 的操动机构适用于快速自动重合闸.对于额定开
断电流为 40kA 及以上的断路器具有快速负荷转移功能;
对于 31.5kA 及以下则同时具有快速重合闸功能
电动机操动机构
最大直流输入功率为 500W. 最大交流输入功率约为 650VA.
在弹簧储能的部分时间中电动机处于过负荷状态. 表.1/6 出示
了我们推荐的电动机保护装置.(不随断路器一起供货, 如用户
需要则另外定购)
*) 具有 G特性的低压朔壳开关
图.1/6 电动机保护设备的额定电流
操作电压可在额定电压-15%至+10%的范围内波动.
- 1/6 -
Rated supply voltage
额定电压 DC24V DC48V DC60V DC/AC 110V
50/60HZ DC220V/AC230V
50/60HZ
Recommended rating of protection device*
保护装置推荐等级*
16A 8A 6A 3A 1.6A
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Auxiliary switch (S1) 3SV92 辅助开关(S1) 3SV92
Two versions of the auxiliary switch can be supplied.
The standard version is fitted with 6 NO contacts and
6 NC contacts. The extended version is fitted with
12NO contacts and 12NC contracts.
Rated insulation voltage: AC/DC 250 V
Insulation class: C acc. to DIN VDE 0110
Current: 10A
Making capacity: 50A
本产品提供两种型号的辅助开关. 标准型号是 6常开 6
常闭. 延长型为 12 常开 12 常闭.
额定电压: AC/DC 250V
绝缘等级: C 级符合德国标准 DIN VDE 0110
电流: 10A
额定关合电流: 50A
Breaking capacity/ 切断能力
AC 40 to 60 Hz/交流 40~60Hz DC/直流
Operational current/操作电流
I (A)
Voltage
电压
U (V)
Operational current
操作电流
I (A)
Voltage
电压
U (V) Resistive load/阻性负载 Inductive load/感性负载
(T=20ms)
<230V 10 24
48
60
110
220
10
10
9
5
2.5
10
9
7
4
2
Fig.1/7 Breaking capacity of 3SV92 auxiliary switch
Low-voltage plug connector (X0)
The control elements of the 3AH3 vacuum circuit-
breaker provided in the mechanism housing are wired
for external connection to the plug connector(X0). The
standard version is provided with a 64-pole plug
connector.
Shunt closing release (Y9) 3AY1510
The closing solenoid unlatches the charged closing
spring and thus closes the circuit-breaker electrically
It is available for both AC and DC operation. After
completion of a closing operation, the closing solenoid
is de-energized internally.
Power consumption approx. 140 W/VA
图.1/7 辅助开关 3SV92 的开断能力
低压二次接插件(X0)
3AH3 断路器机构箱内的控制单元所有接线被引至低压
接插件(X0), 标准型号提供的是 64 针接插件.
合闸线圈(Y9) 3AY1510
合闸线圈通电动作使合闸弹簧释放能量, 这就是电气合
闸. 交直流操作均可, 合闸完成后,合闸线圈失电.
功率消耗约 140 W/VA
Shunt releases (shunt opening releases)
The shunt releases are used for automatic tripping of
circuit-breakers by means of appropriate protective
relays and for deliberate tripping by other electrical
means. They are designed for connection to external
voltage (DC or AC voltage). In special cases, for
deliberate tripping, they can also be connected to a
voltage transformer.
Shunt releases based on two different operating
principles are used.
Shunt release (Y1) 3AY1510
The 3AY1510 shunt release is used as standard in the
basic circuit-breaker version, with this design, the
electrically supplied tripping pulse is passed to the
″open″latching mechanism by means of a direct-action
solenoid armature and the circuit-breaker is thus
opened. It is available for both AC and DC operation.
After completion of an opening operation, the AY1510
shunt release is de-energized internally. In operation
with AC voltage, a rectifier module 3AX1525-1F is
installed in the circuit-breaker.
Power consumption approx. 140 W/VA
分励脱扣器 (分闸线圈)
分励脱扣器是用于经由相应的保护继电器来实现断路器
自动脱扣的装置,还可用于其他的电气措施来实现某些特
定的脱扣动作.分励脱扣器由直流或交流电源供电, 在特
殊情况下, 它们也可接在电压互感器上
分励脱扣器有两种不同的脱扣原理.
分励脱扣器 (Y1) 3AY1510
3AY1510 分励脱扣器是断路器基本结构的标准脱扣器.
该脱扣器可以直接用线圈的铁芯"打开"锁扣机构, 于是断
路器分闸. 交直流操作均可, 分闸完成后,分励脱扣器失电.
交流操作时,断路器加装 3AX1525-1F 整流模块.
功率消耗约 140 W/VA
- 1/7 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Shunt release (Y2) 3AX1101 1)
The 3AX1101 shunt release is fitted if more than one
shunt release is required. With its design, the electrical
opening command is transferred in boosted form to the
″Open″latching mechanism via a solenoid armature
through unlatching of a energy store and thus the
circuit-breaker is opened. Any varistors and rectifiers
required are integrated in the release.
Power consumption: <60W or <55VA
Undervoltage release (Y7) 3AX1103 1)
Undervoltage release consist of a stored-energy
mechanism, an unlatching mechanism and an
electromagnet system which is connected continuously
to the supply when the circuit-breaker is in the close
state. If this voltage drops to below a certain value the
unlatching mechanism is released and opening of the
circuit-breaker is thus initiated via the stored-energy
mechanism.
The deliberate tripping of undervoltage release
generally takes place via an NC contact in the tripping
circuit. But it can also be carried out via an NO contact
by short-circuiting of the magnet coil. With this type of
tripping, the short-circuit current is limited by the built-in
resistors (see circuit diagram Fig.3/4)
Under voltage releases can also be connected to
voltage transformers. When the operating voltage
drops to impermissibly low levels, the circuit-breaker is
tripped automatically.
Power consumption: <6.5 W or <7.5 VA
CT-Operated release (Y4) 3AX1102 1)
CT-operated releases consist of a stored-energy
mechanism, an unlatching mechanism and an
electromagnet system. When the tripping current is
exceeded (90% of the CT-operated release rated
current) the unlatching device of the stored-energy
mechanism is released and thus opening of the circuit-
breaker is initiated. In addition to the primary current
transformer, matching transformers are required for
application of the CT-operated releases.
Power consumption for 0.5A and 1A<6VA at 90% of
the rated current and with open armature.
CT-operated release (Y6) 3AX11041)
(Low-energy release 0.1Ws)
In connection with a solid-state release (7SJ41
overcurrent time protection or similar) and low-power
primary current transformers (window-type
transformers), it is possible with the 3AX1104 to create
a CT-operated release without additional supply
voltage.
The 3AX1104 is of similar design as the 3AX1101
/1102 releases. With its coil data and its low energy
requirement of < 0.1Ws, its designend to be directly
actuated by a release impulse provided by a capacitor
of the above-mentioned electronic release systems.
1) Can be ordered on request, retrofitting possible.
分励脱扣器 (Y2) 3AX1101 1).
当需用不止一个脱扣器时, 则安装 3AX1101 分励脱扣器.
使用该脱扣器时, 电气分闸指令以放大形式传给线铁芯,
然后打开储能元件的锁扣系统, 将断路器分闸.所有必需
的变阻器和整流模块在分励脱扣器中被集成化.
功率消耗最大值: <60W 或<55VA
欠电压脱扣器 (Y7) 3AX1103 1)
欠电压脱扣器由一套储能机构, 解锁机构以及电磁系统
构成, 当断路器处于闭合状态时, 该电磁系统与电源相连
接. 当电源电压降低至某一树值时, 解锁机构释放, 通过
弹簧储能机构将断路器分断.
这种精巧的欠电压脱扣器装置通常通过接在脱扣回路中
的一个常闭触点来动作. 但是也可以用短接其电磁线圈的
方式使用一常开触点, 短路电流由装置内的电阻限制( 见
图3/4)
欠电压脱扣器还可以安装在电压互感器上, 当工作电压
降到允许值以下时, 断路器自动脱扣.
功率消耗约: <6.5 W 或<7.5 VA
电流互感器驱动型脱扣器 (Y4) 3AX1102 1)
电流互感器驱动型脱扣器由一套储能机构, 解锁
机构以及电磁系统构成. 当脱扣电流超过脱扣器额
定脱扣电流的 90%时, 储能机构的解锁装置脱扣, 然后断
路器实现分闸. 除了电流互感器之外, 这种脱扣器还需配
用一个耦合变压器.
对于 0.5A 和1A 两种规格, 当脱扣电流为 90%额定脱扣
电流时, 且脱扣器带有运动铁芯时, 功率消耗为<6VA
电流互感器驱动型脱扣器 (Y6) 3AX11041)
(低能脱扣器 0.1Ws)
把电子脱扣器 (类似 7SJ41 过流时间保护或其他)和
低功率初级电流互感器(窗式互感器)相连, 就可以和
3AX1104 形成一个无需附加电源的电流互感器驱动
型脱扣器.
3AX1104 与3AX1101/3AX1102 脱扣器的设计非常
相似. 根据线圈参数以及<0.1Ws 的低能耗要求, 它可以
由上述电子脱扣系统中的一个电容所提供的脱扣脉冲信
号直接动作.
1) 可按需定购, 改装也可能实现.
- 1/8 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Breaker tripping signal, cut-out switches (S6
and S7)
When the vacuum circuit-breaker is tripped by means
of a release, the position switch S6 briefly makes
contact. This contact making can be used for signalling.
In the event of intentional mechanical tripping, the cut-
out switch S7 breaks this contact.
Varistor module (V1 to V3) 3AX1526 1)
The disconnection of inductive loads in DC circuits may
cause switching overvoltage which pose a risk to
electronic control units. In order to prevent this, the
inductances of the circuit-breaker mechanism and
control (motor, closing solenoid, shunt release and
auxiliary contactor) can be connected to varistor (with
DC operation). For rated operating voltage of 60V to
220V DC the varistor module 3AX1526 is available as
an accessory; it limits the overvoltage to about 500V.
The module contains 2 separate varistor circuits.
Electrical local closing/electrical interlocking1)
In the basic version, the closing spring must be
released mechanically if the breaker is to be closed
locally. A version with electrical local closing can also
be supplied. In this version, the making circuit of the
circuit-breaker is activated electrically via a push-button.
In this way, allowance can also be made for
station-specific interlocks, and undesired making
operations prevented. For example, interlocking of the
circuit-breaker is possible via the auxiliary contact of a
disconnector.
Circuit-breaker with electrical local closing cannot be
closed mechanical.
Mechanical interlocking1)
Operating mechanism of disconnectors can be fitted
with a mechanical switchgear interlocking facility. The
disconnector and the associated circuit-breaker are in
this case interlocked mechanically.
The sensing parts check the switch position of the
circuit-breaker and prevent if from closing mechanically
and electrically if the associated disconnector is not in
a position to allow safe operation. On the other hand,
the disconnector is prevented from being operated
when the circuit-breaker is closed.
The mechanical interlocking facility can also be used to
interlock breaker trucks or draw-out breaker parts.
Adjustment instruction: 3G 460 00127 (3AX 1520-3C)
Dimensions and weight
The dimensions and weights of the vacuum circuit-
breaker are shown in the relevant drawings.
For planning purposes, the drawings showing detailed
overall dimensions, can be ordered through the
appropriate Siemens agency.
The weight is also stated on the breaker rating plate.
1) Can be ordered on request, retrofitting possible.
分闸脱扣信号 S6 和信号消除开关 S7
当断路器分闸是由于脱扣装置引起时, 位置开关 S6 会短
时闭合, 这可以作为脱扣跳闸信号. 在正常机械分闸时,
信号消除开关 S7 首先断开.
压敏电阻模块 (V1 to V3) 3AX1526 1)
切断直流感性负荷时可能会产生危害控制线路中电子元
件的操作过电压. 为防止这一危害, 断路器机械和控制部
分中的感性元件 (电动机, 合闸线圈, 分励脱扣器以及辅
助接触器可以接有压敏电阻 (直流操作时). 3AX1526 压
敏电阻模块可用于直流 60V-220V; 它可以把过电压
限制在 500V 左右.该模块由两个独立的压敏电阻回路组
成.
电气就地合闸/电气联锁 1)
在基本配置中, 如要求断路器就地合闸, 则必须运用机械
合闸. 本产品还可以提供电气就地合闸装置. 这个装置
利用一个按钮以实现断路器电气合闸. 通过这个装置还可
以实现电站的某些特殊联锁. 例如, 通过隔离开关的辅助
触点完成断路器与其的联锁.
带有电气就地合闸的断路器不具有机械合闸功能.
机械联锁 1)
隔离开关的操动机构可以装有一套机械联锁装置. 这套
装置将隔离开关与其相关的断路器用机械方法加以联锁.
机械联锁的探头部分可以辨别断路器的合,分位置, 如果
与断路器相关的隔离开关的闸刀处于不能确保安全操作
的位置时, 断路器就不能闭合. 另一方面, 当断路器处于
合闸状态, 联锁装置可阻止操作隔离开关.
机械联锁装置还可用于断路器手车或可移开部分的联锁.
调节指示: 3G 460 00127 (3AX 1520-3C)
外形尺寸及重量
真空断路器的外形尺寸及重量可以在相应图中查到.
考虑布置方案时, 可以向西门子公司的合法代理商定购
详细的总体外形尺寸图.
重量可在断路器铭牌上查到.
1) 可按需定购, 改装也可能实现.
- 1/9 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Description
Construction
The vacuum circuit-breaker consists of the mechanism
housing (60.), the 3-pole assemblies (19.) with vacuum
interrupter (30.), cast-resin post insulators (16.1and
16.2), struts (28.) and of the operating rods (48.) with
contact pressure springs (49).
Each of three pole assemblies (19.) is supported by
two cast-resin post insulators (16.1and 16.2), which are
bolted to the pole plate (15) respectively.
The main feature of the 3AH3 vacuum circuit-breaker
are shown in Fig.2/1.
The mechanism housing (60.) accommodates all
electrical and mechanical elements required for
opening and closing the vacuum circuit-breaker. Fig.
2/2 shows the arrangement of the individual modules in
the mechanism housing.
The mechanism housing has a detachable cover
60.1(Fig.2/3).
This cover (60.1) has cutouts for the actuating and
indicating devices.
The vacuum circuit-breaker is closed by means of the
pushbutton (53.). The motor (50.4) immediately
recharges the closing spring (62.). In the event of motor
power supply failure, the closing spring can be charged
by means of a hand crank (50.). The cover
includes an opening (50.1) for the hand crank, behind
which the hand crank coupling (50.5) of the gearing
(50.2) is located. The stored-energy mechanism state
is shown by the indicator (55.). The indicator (59.)
shows the breaker state (ON-OFF). The operating
cycle counter (58.) indicates the number of charging
operations. The rating plate (51.) is attached to the
mechanism housing but visible through an opening
(51.1) in the cover.
The movement is transmitted to the pole assemblies
via moulded-plastic operating rods (48.).
说明
结构
真空断路器由机构箱 (60.), 3 相极柱装配 (19.) 真空
灭弧室 (30.), 环氧浇注绝缘子 (16.1 和16.2), 绝缘支杆
(28.) 和带有触头压力弹簧 (49)的绝缘拉杆(48.).
每相极柱装配 (19.) 由两个环氧浇注绝缘子 (16.1 和
16.2) 所支撑, 绝缘子是通过螺栓连接分别固定在支撑板
上(15).
3AH3 真空断路器的主要特征见图 2/1.
机构箱 (60.) 包含了用于合分断路器 的所有机械和电气
单元. 图.2/2 显示了机构箱中各个独立的模块单元.
机构箱有一块可拆卸的面板 60.1(图.2/3).
面板 (60.1) 有操作和指示设备的开孔.
真空断路器通过按钮 (53.) 合闸后. 马达 (50.4) 立即对
合闸弹簧 (62.) 储能. 在电动储能失败的情况下,合闸弹
簧可通过手柄 (50.) 进行手动储能. 面板上有一个手动
储能的开孔(50.1), 它的后面是齿轮箱 (50.2) 的手柄储
能机构 (50.5). 储能机构状态通过储能指示器 (55.) 显
示. 指示器 (59.) 显示断路器状态 (合-分). 操作计数器
(58.) 显示了储能操作次数. 铭牌 (51.) 安放于机构箱中
但是可以通过面板上的开孔 (51.1) 看到.
合分操作通过绝缘拉杆 (48.) 传送到极柱装配.
- 2/1 -
Fig.2/1 3AH3 vacuum circuit-breaker
图.2/1 3AH3 真空断路器
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Fig. 2/2 View of an open mechanism housing
图. 2/2 卸去面板的机构箱主视图
Fig. 2/3 Actuating and indicating devices
图. 2/3 操作和指示设备
- 2/2 -
Tightening torque:10Nm
紧固力矩: 10Nm
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
The pole assembly (19.) consists of the upper
interrupter support (20.) with the upper terminal (27.),
the vacuum interrupter (30.), the lower interrupter
support (40.) with the lower terminal (29.), the clamp
(29.2) with the flexible connector (29.1) and angled
lever (48.6). The centering piece (28.1) and the struts
(28.) relieve the vacuum interrupters of external forces
see (Fig. 2/4).
Fig. 2/4 3AH3 pole assembly
图. 2/4 3AH3 极柱装配
真空断路器极柱装配 (19.) 包括带有上接线终端 (30.) 上
极帽 (27.), 带有下接线终端 (29.) 下极帽, 以及连接于
软连接 (29.1) 的导电夹 (29.2) 和拐臂 (48.6). 衬垫 (28.1)
和绝缘支撑杆 (28.) 减弱了施加于真空灭弧室的
外部压力(见图.2/4).
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Vacuum interrupters
The basic construction of the vacuum interrupters for
the 3AH3 vacuum circuit-breaker is shown in the
sectional view in Fig.2/5.
Depending on its type, the vacuum interrupter (30.) is
fixed to the upper interrupter support (20.). The arcing
chamber (33.) is located between two ceramic insulator
(32.). The fixed contact piece (31.) is connected
directly with the housing. The moving contact piece
(36.) is fixed to the terminal bolt (36.1) and is located
centrally in the guide (35.). The metal bellows (34.)
forms the vacuum-proof connection to the interrupter
housing.
Fig.2/5 vacuum interrupter
图. 2/5 真空灭弧室
The vacuum interrupters fitted in the 3AH3 vacuum
circuit-breaker are type-approved in accordance with
the X-ray regulations of the Federal Republic of
Germany. They conform to the requirements of the X-
ray regulations of January 8, 1987 (Federal LAW
Gazette Page 144) § 8 and annex Шsection 5 up to
rated short-time AC voltage stipulated in accordance
with DIN VDE/IEC.
真空灭弧室
3AH3 真空断路器灭弧室的基本结构的剖面如图 2/6.
依照这种结构, 真空灭弧室 (30) 由上支撑(上极帽) (20.)
固定. 金属灭弧室 (33.) 位于上下瓷绝缘外罩
之间.静触头 (31.) 与灭弧室外壳固定在一起. 动触头
(36.) 与动触头杆 (36.1) 相连并且位于导向管 (35.)
中央玻纹管 (34.) 与灭弧室形成密封保护连接.
装于 3AH3 真空断路器的灭弧室是经过型式试验考核的,
符合德国对于 X射线计量的规定. 并满足 (联邦法律公报
144 页) 第5章第 Ш部分第 8款关于按照 DIN VDE/IEC
标准中规定在额定短时交流电压下 X射线的要求.
- 2/4 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Complement
The basic version of the vacuum circuit-breaker
comprises:
Electrical operating mechanism (charging motor)
With mechanical and electrical
anti-pumping feature (M1)
Closing solenoid (Y9)
Shunt release (Y1)
Low-voltage plug connector, 64-pole (X0)
with grommet sleeve housing
Auxiliary switch 6NO+6NC (S1)
Position switch for signaling
"Closing spring charged" (S41, S42)
Breaker tripping signal, cut-out switch (S6, S7)
Operating cycle counter
Each 3AH3 vacuum circuit-breaker can be equipped
with the following supplementary devices:
Terminal block (X0)
Extended auxiliary switch 12NO+12NC (S1)
Shunt release 3AX1101 (Y2)
Current transformer-operated release 3AX1102
(Y4, Y5)
Current transformer-operated release 3AX1104(0.1Ws)
(Y6)
Undervoltage release 3AX1103 (Y7)
Electrical manual closing (S14, S15)
Mechanical interlock
In addition to the standard shunt release Y1, the 3AH3
vacuum circuit-breaker can be fitted with a maximum of
two release of type 3AX 11
The permissible combination of supplementary
equipment and special versions are stated in catalogue
HG 11.
完整单元
标准型断路器包含以下:
电动机构 (储能马达)
带有机械及电气防跳 (M1)
合闸线圈 (Y9)
1级分励脱扣 (Y1)
64 针低压接插件 (X0)
辅助开关 6 常开+6 常闭 (S1)
"合闸弹簧储能"位置信号开关 (S41, S42)
脱扣信号及消除脱扣信号开关 (S6, S7)
操作计数器
3AH3 真空断路器还可加装以下附加设备:
二次接线端子排 (X0)
延长型辅助开关 12 常开+12 常闭 (S1)
2级分励脱扣器 3AX1101 (Y2)
电流互感器驱动型脱扣器 3AX1102
(Y4, Y5)
电流互感器驱动型脱扣器 3AX1104(0.1Ws)
(Y6)
欠电压脱扣器 3AX1103 (Y7)
电气手动合闸 (S14, S15)
机械联锁
除了标准分励脱扣器 Y1 外, 每台 3AH3 断路器最多还可
加装两个附加脱扣器 3AX 11.
允许的附加设备组合和特殊型号可参阅样本 HG 11.
- 2/5 -
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Installation
Installing in cubicle or on truck
The 3AH3 vacuum circuit-breaker are supplied in the
open state with the ″closing spring discharged″
indication (55.) visible. Before installing the 3AH3 V-
breaker, remove the transport device (skids and
spacers). Mount face loose supplied phase barrier in
accordance with the supplied drawings.
Before installing the 3AH3 vacuum circuit-breaker in a
cubicle or a truck check its rating plate data (to avoid
confusion) and compare the rated voltage indicated in
the delivery papers with the power supply voltage
available at the site.
On the vacuum circuit-breaker with undervoltage
release (Y7) 3AX1103, the arresting screw of the
hammer must be moved from position A to B (see
annex to operating instructions for release or note card
in mechanism housing [60.] of vacuum circuit-breaker).
On the pole plate (15.) and on the mechanism housing
(60.) there are a total of 14 fixing holes – to suit the
various types of installation (Fig.3/1). For installation of
vacuum circuit breakers with rated short circuit
breaking current > 50kA we recommend to only the
pole plate.
Use M12 fixing bolts - strength class 8 – making
reference to the mandatory dimension drawings.
The rack or frame must be adapted to the operating
conditions and have adequate load bearing capacity
and stability.
Flat bar connection
Prior to fitting the conductors fix them so as to ensure
smooth contact with their connecting parts and with the
holes in full alignment.
Rub the contact faces to be bolted together with criss-
crossing strokes using a wire brush until bright metal
shows and wipe then with a clean rag.
Note! Copper-sprayed and spray silver-plated surfaces
should be cleaned a rag and not brushed.
安装
安装在开关柜中或手车上
3AH 真空断路器出厂时处于分闸状态并 可看到″合闸弹
簧未储能″指示 (55.). 在安装 3AH3 断路器以前, 首先除
去运输装备 (垫木及固定铁板). 根据所提供的图纸安装
固定相间隔板
在把断路器安装于开关柜或手车之前, 核对铭牌数据 (以
防混淆)并且比较断路器额定电压是否与现场电压一致.
对于带有欠电压脱扣器 (Y7) 3AX1103 的断路器, 脱扣器
上的调节螺栓必须从 A位调整到 B位(详见附录
脱扣器使用说明或断路器机构箱 (60.) 的说明卡).
在极柱安装板 (15.) 和机构箱上 (60.) 共有 14 个固定孔
– 适用于不同的安装 (图.3/1). 当安装额定短路电流大于
50kA 时的断路器时我们建议使用极柱安装板图的安装孔.
应用 M1 固定螺栓 - 强度等级为 8级- 参照指示尺寸图.
支架或外框架必须适合于操作条件并且具有足够的承载
能力和稳定性.
.
平滑母排连接
预先安装之前, 检查连接导体是否光滑接触并且安装孔
完全匹配.
用金属丝刷上下左右擦抹将要用螺栓对接的接触面直到
金属发亮然后用干净抹布擦净.
注意!喷铜或镀银表面应用抹布清洁切勿用刷子.
- 3/1 -
View Y/ Y
向
View Z/ Z 向
Fig.3/1 Means of fixing 3AH3 vacuum circuit-breake
r
图.3/1 3AH3 真空断路器的固定方法
* Holes for M12 bolts
* M12 螺栓孔
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Differing contact materials (AL/CU) must not be worked
with the same cleaning tool. Thinly grease the bright
contact faces with acid-free Vaseline (e.g. Shell
Vaseline 8420) or equivalent anti-corrosion agent and
bolt them together immediately 1).
Note:
Silver-plated parts must not be bolted together with
aluminium bars.
Use the appropriate M12 nuts and bolts of strength
class 8 and corresponding spring elements and plain
washers.
Note! When tightening the terminal screws, counteract
the torque (70Nm~7mkp) by resisting it with a suitable
spanner or socket wrench.
Control leads
Vacuum circuit-breaker of standard design are
provided with a 64-pole low-voltage plug connector X0
(68.7.1). The corresponding plug for external
connection is designed for crimp connection of control
leads with a nominal section area of 1.5mm2. Use only
crimping tools (e.g. Amphenol crimp tongs TA 0500
with positioning sleeve TA 0000141 and TA 0007 146
0003) 2).
Make reference to the circuit diagram supplied.
Earthing
Connect the vacuum circuit-breaker to the appropriate
high voltage protective earth by means of the suitable
marked M12 (70.)(see Fig.3/3) terminal on the top of
the mechanism housing (60.) using flat copper, copper
cable or hot galvanized steel strip (DIN VDE 0141/7.76
Item 5.3).
If the V-breaker with the mechanism housing are
installed in an earth metal rack so that firm electrical
contact is established, the mechanism housing need
not be earthed separately. When installing the switch
externally, toothed serrated washers (DIN 6789) must
then be placed under the bolt heads.
Circuit documents
The wiring and connection of circuit-breaker is shown
in the circuit diagram supplied, depending on the
particular model and complement.
Typical circuit diagram for circuit-breaker are shown in
Fig. 3/3 and 3/5.
不同的连接导体 (铝/铜) 不允许用同样的清洁工具, 用
无酸凡士林 (如Shell 凡士林 8420) 或同等的防腐剂薄薄
地涂抹于接触表面,然后立即用螺栓加以连接 1).
注意:
镀银部件绝对不允许与铝排固定连接.
使用强度等级 8级的 M12 螺栓和螺母以及适当的平垫圈,
弹簧垫圈.
注意!当最终拧紧时, 须使用适当的扭矩扳手,扭矩为
70Nm~7mkp.
二次控制引线
标准型的断路器提供 64 针低压插座 X0 (68.7.1). 相应
用于外部连接的插头可连接截面积为 1.5mm2的成束二
次控制引线, 在连接时应使用恰当的束线工具. (例如
Amphenol 束线钳 TA 0500 带有位置出套 TA0000141
加TA 0007 146 0003) 2).
参照本书所提供的二次线路图.
接地
对于断路器高压接地保护可使用位于机构箱 (60.) 顶部
的带有接地标志的接地终端 M12 (70.)(见图.3/3) 可使用
扁平铜排, 铜芯电缆或经热度锌处理的钢条
(DIN VDE 0141/7.76 目录 5.3).
当真空断路器机构箱安装于接地金属支架时, 机构箱无
须再单独接地. 但连接时需采用带齿形的接地垫圈 ( DIN
6789).
二次线路图
断路器的二次线路接线见所提供的二次线路图, 根据特
殊型号及补充.
断路器的典型二次线路图参阅 图. 3/3 和3/5.
- 3/2 -
7
0
Fig.3/2
图.3/2
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Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Function schematic diagram
功能示意图
HA Manual tripping/手动脱扣
HE Manual closing/手动合闸
K1 Anti-pumping contactor
防跳接触器
M1 Motor operating mechanism/马达储能机构
P Energy store/能量储存
R1 Resistor/电阻
S1 Auxiliary switch/辅助开关
S21, S22 Position switches (cut-out motor after
charging)
位置开关 (储能后切断马达回路)
S3 Position switches
(open when closing spring charged )
位置开关(合闸弹簧储能后断开)
S41, S42 Position switch (signals charged state)
位置开关 (合闸弹簧储能信号)
S6, S7 Position switches (for switch tripped signal)
位置开关 (脱扣信号)
X0 Low-voltage plug connector
二次插座
Y1 1st shunt release/一级分励脱扣器
Y2 2nd shunt release/二级分励脱扣器
Y4, Y5, Y6 CT operated release/电流互感器驱动型脱扣器
Y7 Undervoltage release/欠电压脱扣器
Y9 Closing solenoid/合闸线圈
S10, S11 Position switches (mech. pumping prevention)
位置开关 (机械防跳)- 3/3 -
Fig.3/3 V circuit-breaker 3AH3 with manual and electrical
closing with 64-way plug connector
图.3/3 带手动合闸, 电动合闸以及 64 针低压插座的
3AH3 真空断路器
Motor drive
马达驱动 Closing and anti-
pumping device
合闸及防跳装置
1st shunt
release
一级分励脱扣
Switch
tripping signal
脱扣信号
closing spring charged signal
合闸弹簧储能信号
System wiring
系统接线
Tripping via NC
contact
跳闸回路常闭触
点
Tripping
via NC
contact
跳闸回路
常闭触点
Breaker wiring
断路器接线
System wiring
系统接线
Release "off"
脱扣器
"
脱离
"
-
Y
6 -
Y
5
-Y7
⇑
⇑
⇑
⇑
Fig.3/4 typical circuit for connection of the undervoltage release Y7
图.3/4 欠电压脱扣器 Y7 的典型接线图
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