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Shaanxi Longxiang Electrical Co., Ltd.

Vacuum Circuit Breaker, Breaker, Circuit Breaker manufacturer / supplier in China, offering Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker, Vib1/R 12kv High Voltage Vacuum Circuit Breaker, Hv Vacuum Circuit Breaker for Outdoor (ZW7-40.5) and so on.

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Supplier Homepage Product 12kv-Vacuum Circuit Breaker Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker

Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 16000sets/Year
Payment Terms: L/C, T/T
Basic Info
  • Model NO.: ZN28-12K
  • Operation: Electric Type
  • Arc-extinguishing Medium: Vacuum
  • Structure: ACB
  • Type: Circuit Breaker
  • Certification: VDE, ISO9001-2000, CE, CB, CCC
  • Rated Current: 630/1250/1600/2000/2500/3150A
  • Trademark: Longxiang Electric
  • Specification: IEC: M2-E2-C2
  • HS Code: 85389000
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Function: Circuit-Breaker Failure Protection
  • Rated Voltage: 12kv
  • Rated Frequency: 50/60Hz
  • Transport Package: Non-Solid Wooden Case for Export Shipment
  • Origin: China Baoji
Product Description
ZN28-12K
Fixed Type of Indoor High Voltage Vacuum Circuit Breaker

General Description
 ZN28A-12 fixed type indoor HV vacuum breaker is used for many kinds of switchgear like 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 CD17or CT19 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.Convenient for matching with switchgear;convenient and reliable operation:compulsive mechanical interlock way is adopted:meet the "Five Preventions"function.
 
  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, chemical erosion and violent vibration.

  Main Technical Specification
S.NNameUnitData
1Rated voltagekV12
2Rated frequencyHz50/60
3Rated currentA630630  1250  1600
1000100016002000
1250125020002500

 

 

 
3150
4Rated short circuit breaking current   kA  20   25   31.5   40
5Rated peak withstand current   kA  50   63    80   100
6Rated short-circuit duration    s                            4
7Rated power frequency withstand voltageBetween phases,
phase to  ground
   kV                           42
Between gaps   kV                           48
8Rated lightning impulse withstand voltageBetween phases,
phase to ground
   kV                            75
Between gaps   kV                            85
9Rated operating sequence
 
O-0.3s-CO-180s-CO
O-180s-CO-180s-CO(40kA)
10Rated source voltage of opening and closing circuit   V~220/-110;-220/110
11Rated breaking current of single capacitor bank   A                           630
12Rated breaking current of bank to bank capacitor bank   A                           400
13Electrical endurance classCycle                             30
14Mechanical enduranceCycle                          10000
15Operating mechanism type
 
CD17ICD17IICD17IICD17III
CT19ICT19ICT19ICT19II
16Clearance between open contactsmm11±1
17Contact stroke of contacts  mm4±1
18Out simultaneity of CO operation of three poles  ms≤2
19Contact bouncing duration at closing operation  ms≤2
20Closing time   ms50~100
21Opening time   ms20~60
22Average closing speed   m/s0.6±0.2
23Average opening speed   m/s1.1±0.2
24Main circuit resistance of each pole   μΩ≤40≤40   ≤40   ≤30
25DC component
 
                      50%(Max.)

  Overall outline drawing
Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker
 
Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker
 
Zn28-12k Fixed Type of Indoor High-Voltage Vacuum Circuit Breaker
 
 
 
 
  
 
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