FZN25-12 Series Indoor High Voltage Vacuum Load Break Switch

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Product Detail

Product Tags

FZN25-12 indoor HV vacuum load break switch a 3-phase AC 50Hz 12kV indoor switch equipment..

♦ Operating mechanism: spring operating mechanism, manual type and electrical type available;

♦ Operation type: right operati on an d left operation;

♦ Operation direction: left operation, right operation;

♦ Application: indoor 12kv switchgear.

Environmental Conditions

♦ Ambient temperature: -25°C +40°C;

♦ Altitude: <1000m (above sea level);

♦ Relative humidity: daily average <95%, monthly average <90%;

♦ Earthquake intensity: <8 level;

♦ Pollution grade: II;

♦ Installation place without fire, explosion, chemical corrosion and serious vibration.

Technical Parameters

♦ Main technical parameters

NO

Item

Unit

FZN25-12LT

630-20

FZRN25-12D/T

200-31.5

1

Rated voltage kV

12

12

2

Rated frequency Hz

50

50

3

Rated current A

630

200

4

1min power frequency withstand voltage (Phase to earth, Phase-to-earth, phase-to-phase kV

42

42

  between poles, open contacts) Isolating fracture  

48

48

5

Rated lightning impulse withstand voltage (Phase to Phase-to-earth, phase-to-phase kV

75

75

earth, between poles, open contacts) Isolating fracture

85

85

6

Rated short time withstand current (thermal stability current) Load break switch kA

20

 

7

Rated short circuit duration

( thermal stability time)

Load break switch s

4

 

8

Rated short circuit making current (peak) kA

50

 

9

Rated active load breaking current A

630

 
10 Rated loop breaking current

630

 
11 Rated cable charging current  

10

 
12 Rated no-load transformer capacity kVA

1600

1600

13 Rated short circuit breaking current (limit current fuse) kA   31.5
14 Rated breaking transfer current A  

2000

15 Fuse model    

SDLAJ-12

SFLZJ-12

16 Striker output energy J  

2-5

 

NO

Item

Unit

FZN25-12D/T

630-20

FZRN25-12D/T

200-31.5

17 Auxiliary circuit rated voltage

V

^110 ^220

^110 ^220

18 Earth switch rated short time withstand current

kA

20

20

19 Earth switch rated peak short circuit duration S

2

2

20 Earth switch rated peak withstand current kA

50

50

21 Rated short making current kA

50

80(prospective peak value)

22 Mechanical life

times

10000

10000

♦ Mechanical property

NO

Item

Unit

Value

FZN25-12

D/ T630 20

FZRN25-12

D/T200-31.5

1 Air clearance between charged parts and to earth mm

>125

2 Conducting tube insert into fixed contact holder depth mm

>18

3 Vacuum interrupter open distance mm

600+1

4 Vacuum interrupter contact spring compression length mm

20+1

5 Vacuum interrupter average closing speed m/s

0.6±0.2

6 Vacuum interrupter average opening speed m/s

1.0±0.2

7 Closing bouncing time ms

<2

8 Three phase closing and opening synchronism ms

<3

9 Main circuit resistance rQ

<150

<300

10 Manual opera+’on maximum torque n.m

<160

11 Fuse trigger opening time ms

-

30-40

12 Release trigger opening time ms

40-45

♦ Energy storage motor parameters

Model

Rated voltage V

Rated current A

Rated power W

Normal working voltage range

LLZY-CJ01B8

AC/DC220

0.7

70

85%-110% rated

66ZY-CJ028

AC/DC110

1.5

voltage

General Structure Drawing and Installation Size (unit: mm)

♦ FZRN25 right operation

sdvd

♦ FZRN25 left operation

q2

♦ FZN25 right operation

q3

♦ FZN25 left operation

q4


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