VG1
1 2 k V , . . . 4 0 0 0 A , . . . 4 0 k A
VG1 Series
Indoor Vacuum Circuit Breaker
1 2 k V , . . . 4 0 0 0 A , . . . 4 0 k A
JIANGSU CHANGJIANG ELECTRIC CO., LTD.Relible operationdevice
Extremely high safty
High consistence
Extremely long life & maintenance-free
Series of product for the order1
Type Designation
2
Wide Application
3
Technical Data
4
Outline dimensions
5
Structure and Function
6
VG1
Transport,Storage and Commissioning
7
Sevicing and Maintenance
8
ConfigurationVG1
GB1984 JB3855 IEC62271-100 :2001
VG1
30000
630A-4000A 20-
40kA
300
1The vacuum circuit-brerkers of type VG1 which designed range and / or where a certain number of short-circuit
and producted by CJEC are intended for indoor installation breadking operations are expeded.The Circuit-breakers
in complex insulatad switchgear systems. The circuit- are suitable for autoreclosing and have exceptionally
breakers complies with the following standars:Gb1984, high oprating reliability and long life.
JB3855, iec62771-100:2001. High consistence
The vacuum circuuit-breakers of type VG1canbe supplied The circuit-breakers are producted in assembly lines
both as individual units for fixed installion and mounted with technique mould. Therefore, the breakers have high
on chassis. precision and low regulation.
Relible operation device Extremely long life & maintenance-free
The integration spring mechanism is used to ensure The ciruit-breakers are made use of special material
the vacuum-switen-tube parameters of the technical date. and technique, key parts are imported from suitzerland.
The mechanism also has the following specialty:CAD,high T he circuit-breakers can be up to 30000 michanical
transmision efficiency, Low dissipation, little noise operating cycles and can be a certain number of short-
afew indivividual parts. One mechanism for series of ciruit breaking operations and reclosing operation.
circait-breakers. Series of product for the order
Extremely high safety The circuit-breakers have been a wide range of rated
The product has been strict qualith test:300 oprations current and rated short-circuit breaking current:rated
before left factory, HV burn- in between the contacts. current can be from 630A to 4000A, rated short- circuit
The circuit-breakers can be used in net works where there breaking current can be from 20KA TO 40kA.
is a hight switching frequency in the working current
2VG1
VG1(ZN63B) - 12 / -
( k A )
Vacuum circuit-breaker Rated short-circuit breaking current
( A )
Indoor Rated current
(kV)
Type Rated voltage
2000m
Maximum site altitue 2000m max.
40 10
Ambient temperature max. to 40 min. to 10
95 90
Reltive humidity dialy average 95 ,monthly average 90
8
Shock of earthquake 8 magnitude max.
-30
Storage and transportation service over -30
In the application of no firez,explosion,heavy dust,chemical corrosion and violent vibration,etc.
Attention:
Avoid the risk of corrosion or other damage in areas
* with high humidity and/or
* with major rapid temperature fluctuations
Implement preventive measures to preclude condensation phenomena.
3Electrical data
kV 12
Rated voltage
1600, 2000,
630, 1250,
A 630, 1250 2500, 3150,
Rated current 1600, 2000
4000
Hz 50
Reated frequency
( )
kA 20 25 31.5 40 40
Rated short-circuit breaking current (rms.)
( )
kA 50 63 80 100 130
Rated short-time withstand current(peak)
kA 20 25 31.5 40 40
Rated short-time withstand current
kA 50 63 80 100 130
Rated peak withstand current
50**
Rated operations of short-circurrent breaking operations
1min
kV 48

VG1(ZN63B-12)是一种常用于额定电压为12kV（即12千伏）的户内高压交流电力设备，它属于真空灭弧技术的断路器类型。ZN63B是该产品的具体型号，其中"ZN"通常代表金属封闭开关设备，"63"可能表示设计电流等级的一种约定，而"B"后缀则可能是对该系列产品在技术和性能上的特定改进或特征的描述。 这款断路器的主要功能是在电力系统中切断和接通负荷电流，当发生过载、短路或其他故障情况时，通过真空灭弧室迅速隔离电源，从而保护电气设备和电网的安全运行。其采用真空作为灭弧介质，具有高可靠性、长寿命、无触头电磨损、操作噪音小等优点，特别适用于对安全性和稳定性要求较高的变电站、配电房及工业电力设施中。