1.1概述summary
ZW7A系列40.5KV型户外真空断路器，是我公司开发的具有国际九十年代初水平的户外产品。它既可用于发电厂，变电站，电力设备和电力线路的控制和保护，也可用于频繁操作的场所，他不但用于新变电所的建设，而且也适用于老变电所的无油化改造。
ZW17A series 40.5KV type outdoor vacuum circuit breaker, is at the beginning of the 90s international level of outdoor products developed by our company. It can be used in power plant, substation, control and protection of power equipment and power lines, but also can be used for frequent operation, he not only for the new substation construction, but also suitable for the old substation transformation of non oil.
1.2产品用途及使用条件Product use and service conditions
ZW7A系列40.5KV型户外真空断路器用于交流50HZ的三相电力系统，作为分、合负荷电流，过载电流及短路电流之用。
The ZW7A series 40.5KV outdoor vacuum circuit breaker is used to communicate the three-phase power system of 50HZ. It is used as load current, overload current and short circuit current
产品根据使用条件可分为普通型、防污型及高原型
Products according to the use of conditions can be divided into ordinary type, antifouling type and plateau type
符合标准：GB1984《交流高压断路器》和IEC56《交流高压断路器》的标准，及ONJ.520.023JT（户外高压真空断路器技术条件）。
Accordance with standards: GB1984< AC high voltage breaker > and IEC56< AC high voltage breaker > standard, and ONJ.520.023JT (outdoor high voltage vacuum breaker technical conditions)
普通型产品条件：General type product condition:
a.周围空气温度ambient air temperature
上限+40℃ Upper limit 40 DEG C
下限一般地区-30℃ The lower limit is -30 degrees centigrade
高寒地区-40℃ High temperature region -40
b.海拔：2000 m Elevation: 2000 m
c.分压不超过700Pa（相当于风速34 m/S） The partial pressure of C. is less than 700Pa (the equivalent wind speed of 34 m/S)
d.地震烈度，不超过8度The earthquake intensity is not more than 8 degrees
e.空气污染程度Ⅲ级 Air pollution level III
1.3产品外形尺寸及安装尺寸如图1
1.3 Product dimensions and mounting dimensions are shown in Figure 1
注：防污型使用环境为空气污秽程度Ⅳ级；高原型使用环境为海拔4000m以下。
Note: the use of antifouling type is air pollution level 4; the plateau type environment is below 4000m altitude
1.4技术参数见表1
1.4 Technical parameters are shown in Table 1
表1 Table 1
|
序号order number
|
名称
apellation
|
单位
unit
|
数据
data
|
||
|
1
|
额定电压 rated voltage
|
KV
|
35
|
||
|
2
|
最高工作电压maximum operating voltage
|
40.5
|
|||
|
3
|
额定绝缘水平
Rated insulating level
|
1min工频耐压1min power frequency withstand voltage
|
干试
Dry test
|
95
|
|
|
湿试
wettest
|
80
|
||||
|
雷电冲击耐压（峰值）
Lightning impulse withstand voltage (peak)
|
185
|
||||
|
4
|
额定电流Rated current
|
A
|
1600 2000
|
||
|
5
|
额定短路开断电流
Rated short circuit breaking current
|
KA
|
20/25/31.5
|
||
|
6
|
额定电容器组开断电流
Rated capacitor bank breaking current
|
A
|
400/630
|
||
|
7
|
额定操作顺序
Rated operating sequence
|
|
O--0.3s--CO--180s--CO
|
||
|
8
|
额定短路开断电流开断次数
Rated short circuit breaking current breaking times
|
次
Times
|
12
|
||
|
9
|
额定短路关合电流（峰值）
Rated short-circuit making current (peak)
|
KA
|
50/63/80
|
||
|
10
|
额定峰值耐受电流
Rated peak withstand current
|
||||
|
11
|
额定短时耐受电流
Rated short-time withstand current
|
20/25/31.5
|
|||
|
12
|
额定短路持续时间
Rated duration of short circuit
|
S
|
4
|
||
|
13
|
全开断时间
Full time
|
ms
|
≤80
|
||
|
14
|
机械寿命
Mechanical life
|
次
|
10000
|
||
|
15
|
额定操作电压
Rated operating voltage
|
V
|
DC，AC：110，220
|
||
|
16
|
额定操作电流（合闸）分闸
Rated operational current (switch
)-Open
|
A
|
电磁机构：147（DC220）294（DC110）；弹簧机构：5（AC220V）
Electromagnetic bodies: 147 ( DC220 ) 294 ( DC110 ); Spring: 5 ( AC220V )
|
||
|
17
|
动触头允许磨损厚度
Moving contacts to allow wear thickness
|
mm
|
3
|
||
|
18
|
重量Weight
|
kg
|
1100
|
||