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Operating Times; Switching Duties; Motor Operating Mechanism - Siemens 3AH3 Operating Instructions Manual

Vacuum circuit breaker 7.2kv 36kv.
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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
Arcing time/燃弧时间
Break time/开断时间
Dead time/断电时间
Close-open-time/金属短接时间
Minimum pulse duration/指令的最短时间
"Close"/"合闸"
"Trip" / "脱扣"
"Trip" / "脱扣"
Shortest pulse duration of breaker tripping signal for 1
Shortest pulse duration of breaker tripping signal for 2
脉冲信号时间
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)
Rated supply voltage
额定电压
Recommended rating of protection device*
保护装置推荐等级*
*) 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%.
Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
Shunt release/ 分励脱扣器
Supplementary release 3AX11/
辅助脱扣器 3AX11
Shunt release/分励脱扣器
Supplementary release 3AX11/
辅助脱扣器 3AX11
Shunt release/分励脱扣器
Supplementary release 3AX11/
辅助脱扣器 3AX11
Closing solenoid/合闸线圈
Shunt release/分励脱扣器
Supplementary release 3AX11
辅助脱扣器 3AX11
st
shunt release /一级分励脱扣器最小脱扣脉冲信号时间
nd
rd
and 3
shunt release /2 级和 3 级分励脱扣器最小脱扣
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)
DC24V
DC48V
16A
8A
*) 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.
(Y1)
(Y2,Y4,Y7)
(Y1)
(Y2,Y4,Y7)
(Y1)
(Y2,Y4,Y7)
(Y9)
(Y1)
(Y2,Y4,Y7)
DC60V
DC/AC 110V
50/60HZ
6A
3A
上海锐杰电器有限公司提供
ms
<80
s
<15
ms
<65
ms
<45
ms
<15
ms
<80
ms
<60
ms
300
ms
<90
ms
<70
ms
45
ms
40
ms
20
ms
>15
ms
>10
DC220V/AC230V
50/60HZ
1.6A
- 1/6 -

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