Zn28A-12 Indoor Hv Vacuum Circuit Breaker
Basic Info
Model No.: ZN28A-12
Product Description
Model NO.: ZN28A-12 Operation: Electric Type Arc-extinguishing Medium: Vacuum Structure: ACB Type: Circuit Breaker Certification: VDE, ISO9001-2000, CE, CB, CCC Rated Frequency: 50/60Hz Trademark: Longxiang Electric Origin: China Baoji Breaking Capacity: High Voltage Circuit Breakers Speed: High-Speed Circuit Breaker Installation: Open Frame Poles Number: 3 Function: Circuit-Breaker Failure Protection Rated Voltage: 12kv Rated Current: 630/1250/1600/2000/2500/3150A Specification: IEC: M2-E2-C2 HS Code: 85389000 ZN28A-12 Series of Indoor HV Vacuum Circuit Breaker
General Description
ZN28A-12 fixed type indoor HV vacuum breaker is used for many kinds of Switchgear like GG-1A(F),XGN2-12 (Z).It is widely used for 12kV voltage systems which is accordance with GB1984-2003 standards Structural characteristics:
1.This vacuum circuit breaker adopts air insulation ,it can meet air distance and creepage under nomal run condition.
2.The operating mechanism can use CD10,CD17A,ct19A or CT17G type mechanism,the outlet curve has good adaptation for the requirements of vacuum interrupters.It has high reliable with characteristic of long life and easy maintenance.
3.Suitable for varies sites and the work places which have rigorous run condition,especially suitable for reconstruction of old-fashioned oil switch.
Applying ambient conditions
1.Ambient temperature:-15~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
4.Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa:the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire,explosion,serious filth,and chemical erosion and violent vibration.
Main Technical Specification
Contact us if you need more details on Vacuum Circuit Breaker. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High-Voltage Vacuum Circuit Breaker、Indoor High Voltage Vacuum Circuit Breaker. If these products fail to match your need, please contact us and we would like to provide relevant information.
General Description
ZN28A-12 fixed type indoor HV vacuum breaker is used for many kinds of Switchgear like GG-1A(F),XGN2-12 (Z).It is widely used for 12kV voltage systems which is accordance with GB1984-2003 standards Structural characteristics:
1.This vacuum circuit breaker adopts air insulation ,it can meet air distance and creepage under nomal run condition.
2.The operating mechanism can use CD10,CD17A,ct19A or CT17G type mechanism,the outlet curve has good adaptation for the requirements of vacuum interrupters.It has high reliable with characteristic of long life and easy maintenance.
3.Suitable for varies sites and the work places which have rigorous run condition,especially suitable for reconstruction of old-fashioned oil switch.
Applying ambient conditions
1.Ambient temperature:-15~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
4.Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa:the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire,explosion,serious filth,and chemical erosion and violent vibration.
Main Technical Specification
S.N | Name | Unit | Data | ||||
1 | Rated voltage | kV | 12 | ||||
2 | Rated frequency | Hz | 50/60 | ||||
3 | Rated current | A | 630 | 630 | 1250 | 1600 | |
1000 | 1000 | 1600 | 2000 | ||||
1250 | 1250 | 2000 | 2500 | ||||
3150 | |||||||
4 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | 40 | |
5 | Rated peak withstand current | kA | 50 | 63 | 80 | 100 | |
6 | Rated short-circuit duration | S | 4 | ||||
7 | Rated power frequency withstand voltage | Between phases, phase to ground | kV | 42 | |||
Between gaps | kV | 48 | |||||
8 | Rated lightning impulse withstand voltage | Between phases, phase to ground | kV | 75 | |||
Between gaps | kV | 85 | |||||
9 | Rated operating sequence | O-0.3S-CO-180S-CO O-180S-CO-18S-CO (above 40kA) | |||||
10 | Rated breaking current of single capacitor bank | A | 630 | ||||
11 | Rated breaking current of bank to bank capacitor bank | A | 400 | ||||
12 | Electrical endurance class | Cycle | 30 | ||||
13 | Mechanical endurance | Cycle | 10000 | ||||
14 | Clearance between open contacts | mm | 11±1 | ||||
15 | Contact stroke of contacts | mm | 4±1 | ||||
16 | Out of simultaneity of CO operation of three poles | ms | ≤2 | ||||
17 | Contact bouncing duration at closing operation | ms | ≤2 | ||||
18 | Closing time | ms | 50~100 | ||||
19 | Opening time | ms | 20~60 | ||||
20 | Average closing speed | m/s | 0.6±0.2 | ||||
21 | Average opening speed | m/s | 1.1±0.2 | ||||
22 | Main circuit resistance of each pole | μΩ | ≤40 | ≤30 | |||
23 | DC component | 50%(Max.) |
Contact us if you need more details on Vacuum Circuit Breaker. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High-Voltage Vacuum Circuit Breaker、Indoor High Voltage Vacuum Circuit Breaker. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Indoor HV Vacuum Circuit Breaker
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