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Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28 -12 630-20 630-25

China Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25, Find details about China Load Break Switch, 12kv from Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25

Model NO.
FZW28
Poles Number
3
Type
Load Break Switch
Function
Conventional Circuit Breaker, Switch
Certification
ISO9001-2000
Rated Voltage
12kv
Rated Frequency
50/60Hz
Rated Current
630A
Trademark
Eberry
Transport Package
Plywood Box
Origin
Yueqing, Zhejiang
Model NO.
FZW28
Poles Number
3
Type
Load Break Switch
Function
Conventional Circuit Breaker, Switch
Certification
ISO9001-2000
Rated Voltage
12kv
Rated Frequency
50/60Hz
Rated Current
630A
Trademark
Eberry
Transport Package
Plywood Box
Origin
Yueqing, Zhejiang
    
Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25
Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25
Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25
Eberry Fzw28 (VSP5) 12kv Load Break Switch Vacuum Load Switch Circuit Breaker Fzw28-12 630-20 630-25




Outdoor high voltage vacuum circuit breaker (circuit breaker) is suitable for indoor switchgear of 12kv power system. As a protection and control unit for power grid equipment and industrial and mining enterprise power design, it is suitable for switching various loads of different nature, frequent operations, and multiple interruption of short-circuit current.


Features:

1.Auto-locking phase-to-phase short-circuit fault: When the same short-circuit fault occurs on the user's branch line, the demarcation switch is opened and locked immediately after the substation breaker or recloser protection trips. After the substation recloses, other branch users on the feeder quickly recover power supply

2.Quickly locate the fault point: After the user branch line accident causes the demarcation switch protection action, the responsible user will cut off the power, and it will report the accident information on its own initiative. The power company dispatches personnel to check the cause of the accident through the handheld computer or communication module on the spot

3.The single-phase ground fault is automatically cut off: When a single-phase earth fault occurs on the user's branch line, the demarcation switch is automatically opened. The substation and other branch users on the feeder do not feel the fault

4.This switch can achieve the following functions: quick-break protection, over-current protection, three reclosing, event logging surge protection, zero sequence protection, real-time clock, post-acceleration acceleration, real-time status query, smart handheld.
 

NO

Item

Units

Technical parameters

1

Rated voltage

KV

12

2

Rated short-duration power frequency withstand voltage

 

42/48(Interphase, ground/fracture)

3

Rated lightning impulse withstand voltage

 

42/48(Interphase, ground/fracture)

4

Rated frequency

Hz

50

5

Rated current

A

630 1250

630 1250 1600

2000 2500 3150

630 1250 1600

2000 2500 3150

6

Rated short-circuit breaking current

KA

20/25

31.5

40

7

Rated short-time withstand voltage

 

20/25

31.5

40

8

Rated short circuit duration

S

4

9

Rated peak withstand current

KA

50/63

80

100

10

Rated short circuit closing current

 

50/63

80

100

11

Secondary circuit power frequency withstand voltage (1min)

 

2000

12

Rated single / back to back capacitor group breaking current

A

630/400(40kA:800/400)

13

Rated capacitor bank closing current

 

12.5 (frequency is not greater than)

14

Mechanical life

KA

20000

15

Rated current breaking times (electrical life)

 

20000

16

Rated short circuit current breaking times

times

50(40KA≤30)

17

Dynamic and static contacts allow wear cumulative thickness

mm

3

18

Energy storage time

s

≤10

19

Contact opening distance

mm

11±1

20

Overtravel

 

3.5±0.5

21

Contact closing bounce time

ms

≤2(40KA≤3)

22

Three-phase split/closed period

 

≤2

23

Average opening speed (contacts are separated by -8mm)

m/s

1.2±0.2

24

Main conductive loop resistance

 

0.6±0.2

25

Main conductive loop resistance

μΩ

≤50(630A)≤45(1250A)

≤40 (1600,2000A)≤35 (2500A or more)

26

Rated operation sequence

 

0-0.3s-Co-180s-Co

 

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