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11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
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11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,
11kv and 33kv transformer metering unit having ctr : 50 100 200 / 1 amp.
11Kv and 33Kv Transformer Metering Unit Having CTR : 50-100-200 / 1 Amp.
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11kv and 33kv manual recloser with recloser installation support, spring mechanism
11kV and 33kV Manual Recloser With Recloser Installation support, Spring Mechanism

11kV and 33/0.22kV Auto Circuit Recloser with PT（potential transformer) and new type Installing Support (rea type) BIL 170kV,

circuit breakers are used in distribution systems to make and break normal and fault currents.  outdoor circuit breakers made by our electric power equipment company are fully equipped with sensors and a controller to provide a means of protection and control. In case of a line fault, vacuum circuit breaker can break and make currents several times, thus avoiding longer network interruptions due to temporary faults. The manufacture, design, and testing of the vacuum recloser is based on current standards IEC 62271-100

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Description

Technical parameters of Vacuum Circuit Breaker

The vacuum circuit breaker specifications are as follows.

11kv and 33/0.22kv auto circuit recloser with pt（potential transformer) and new type installing support (rea type) bil 170kv,

Table 1-Circuit Breaker Rated Technical Data

No. Name Unit Parameter
1 Rated voltage kV 11 and 33
2 1 min rated power frequency withstand voltage up to 70
3 Rated lightning impulse withstand voltage (peak) 170
4 Rated current A up to 630
5 Rated frequency Hz 50/60
6 Rated short-circuit breaking current kA 12.5
7 Rated short-circuit making a current (peak) 31.5
8 Rated peak withstand current 31.5
9 Rated short-time withstand current (4s) kA 12.5
10 Rated operating sequence O-0.3s-CO-180s-CO
11 Closing time ms 25-60
12 Opening time 18-45
13 Breaking times for rated short-circuit breaking current times 30
14 Mechanical life 10000
15 Secondary circuit 1min power frequency withstand voltage V 2000
16 Charging motor rated power W 40
17 Charging motor rated voltage V DC24
18 Rated closing operation voltage DC24
19 Rated opening operation voltage DC24
20 Motor charging time s ≤12
21 Weight Circuit breaker kg 130
A circuit breaker with dis-connector 165

Table 2 – Main Mechanical Characteristics of Circuit Breaker

No. Name Unit Parameter
1 Contact travel mm 12-14
2 Contact over-travel 2-4
3 Phase Distance (Center to Center) 410±2
4 Contact closing bounce time ms ≤3
5 Three-phase open/close synchronism ≤2
6 Average opening speed m/s 1.2-1.6
7 Average closing speed 0.6-1.0
8 Resistance of the main circuit μΩ ≤200

Table 3 – Main Technical Data of Dis-connector

No. Name Unit Parameter
1 Rated voltage kV 11 and 33
2 Rated current A up to 630
3 Frequency Hz 50/60
4 Short-time withstand current (4s) kA 12.5
5 Rated peak withstand current 31.5
6 1min power frequency withstand voltage Across open contacts kV 70
7 Circuit resistance μΩ ≤120
8 Center deviation value of three-phase insulating closing mm ≤2
9 Synchronism deviation value of three-phase insulator open/close ≤2
10 Insulating distance between conductor to earth ≥300
11 Contact travel ≥260

Table 4 – Operating Mechanism Characteristics

No. Name Unit Parameter No.
1 Opening coil DC24 7 Reliable tripping under 65%-120% rated voltage, no tripping less than 30% rated voltage
DC110 5
AC220 3.5
DC220 1.8
2 Closing coil DC24 7 Reliable tripping under65%-120% rated voltage
AC220 3.5
DC220 1.8
3 Overcurrent tripping coil 8
4 Energy charging motor Rated voltage: DC/AC220V

Rated power: 40W

 Reliable tripping under85%-110% rated voltage
5 Closing spring charging time ≤10s
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