ZN12-12(3AF) series of Indoor High Voltage Vacuum Circuit Breaker

Price: 1
Brand Name: Longxiang Electric
Model Number: ZN12-12(3AF)
Country/Region: China
Post Date: Mar 09,2012

Product Description: ZN12-12(3AF) series of Indoor High Voltage Vacuum Circuit Breaker


 General Description

ZN12-12 series of indoor HV vacuum circuit breaker is three phase A.C.50 (60) Hz indoor high voltage distribution equipment with 12kV rated voltage and below. This kind of circuit breaker is characterized by simple construction, strong breaking capability, long life with complete operating functions and convenient maintenance. It is suitable for controlling and protecting transmission and distribution system such as power generation plant and substation, especially used in the fields where it is frequently operated.
This kind of vacuum circuit breaker can be used for fixed panels (XGN2 and GGIA), it also can be equipment with truck used for varies panels such as JYN2, KYN1 and KYN49) as well as used for reconstruction for old-fashioned oil switchgear.

 Structural characteristics:

1.The operating mechanism is introduced the technique of operating mechanism from Siemens 3AF vacuum circuit breaker, the operating mechanism is integrated with vacuum circuit breaker, with characteristics of short transmission routes, less chains and high transmission efficiency.

2. This operating mechanism is spring type, it can be operated by AC or DC, also can be operated by manual.

 Applying ambient conditions
1.Ambient temperature: -10+40.
2.The height above sea level: ≤vfgtf 1000 m (Not including 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

Main Technical Specification

S.N

Name

Unit

Data

1

Rated voltage

kV

12

2

Rated frequency

Hz

50/60

3

Rated current

A

630

1000

1250

1600

 

1250

1600

2000

2500

 

1600

2000

2500

3150

4

Rated short circuit breaking current

kA

     25            31.5          40

5

Rated peak withstand current

kA

     63            80           100

6

Rated short-circuit duration

S

4

7

Rated power frequency tolerance

Between phases, phase to ground

kV

42/1min

Between gaps

kV

48/1min

8

Rated lightning impulse withstand voltage

Between phases, phase to ground

kV

75

 

 

85

Between gaps

kV

9

Rated operating sequence

 

0-0.3s-CO-180s-CO/0-180s-CO-180s-CO(40kA)

10

Power source voltage of opening and closing circuit 

V

~220/110;-220/110

11

Rated current of opening and closing coil

A

-220/0.89;-110/1.91

12

Rated breaking current of single capacitor bank 

A

630

13

Rated breaking current of back to back capacitor bank 

A

400

14

Electrical endurance class

 

classE2(30/20cycles)

15

Mechanical endurance

Cycle

(classM1)1000

16

Rated voltage of energy stored motor

V

~220/100;-220/110

17

Clearance between open contacts

mm

111

18

Contact stroke of contacts

mm

72

19

Out of simultaneity of CO operations of three poles

ms

2

20

Contact bouncing duration at closing and operation

ms

3

21

Closing time

ms

30~75

22

Opening time

ms

30~65

23

Average closing speed

m/s

0.6~1.1

24

Average opening speed

m/s

1.0~1.8

25

Main circuit resistance of each pole

 

40

40

25

bration.

 

Supplier Details:

Shanghai Linktek Electronics Co., Ltd.

Sales:Ms. Joyce Dong

Contact Phone:86-21-54266088

Main Products:Other Mobile Phone Accessories

Business type:Manufacturer, Trading Company

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