24kv 50 ( 60 ) Hz Indoor Vacuum Circuit Breakers For Power System With 10000 Times Life
24kv 50 ( 60 ) Hz Indoor Vacuum Circuit Breakers For Power System With 10000 Times Life
24kv 50 ( 60 ) Hz Indoor Vacuum Circuit Breakers For Power System With 10000 Times Life

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24kv 50 ( 60 ) Hz Indoor Vacuum Circuit Breakers For Power System With 10000 Times Life

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Product description

24kv 50 ( 60 ) Hz Indoor Vacuum Circuit Breakers for Power System With 10000 Times Life

1. Summary

ZW32-24 type outdoor high voltage vacuum circuit breaker is three-phase AC,

50(60)Hz outdoor power distribution equipment with the rated voltage of 24kv,

Used to open and close the load current, over load current, and short circuit current in the electric power system. 

Also used to protect and control the circuit in substation, mining and industrial enterprises,  

and frequently used in the operation places such as rural power network. 

2. Using environmental condition 
A. The altitude above sea level does not over 2, 000 meters; 
B. Surrounding air temperature: -40 ℃ ~+40 ℃ ; 
C. The wind speed is not bigger than 34m/s; 
D. The air filthy should be with in Ⅲ degree
E. Installing places: Not flammable,  the explosion hazard,  chemistry corrode place; 
F. Does not have the regular fierce vibration

 

3. Technical parameter

Table 1  Circuit Breaker's Main Technical Data

 

 

 

Data

NO

Item

Unit

24kv

1

Rated voltage

kV

24

2

Rated frequency

Hz

50

3

Rated current

A

630/1250

4

Rated short circuit breaking current

 

kA

20/25

5

Rated peak withstand current

 

kA

50/63

6

Rated short time withstand current/ lasting time

kA/s

20/4 , 25/4

7

Rated short circuit closing current(peak)

 

kA

50/63

8

Rated operating sequence

 

O-0.3s-CO-180s-CO

9

Mechanical life

time

10000

10

Rated short circuit breaking current breaking times

 

0

11

1min power frequency withstand current

(wet)

kV

50/64

(dry)

kV

65/79

12

Lightning impulse withstand voltage(peak)

kV

125/145

13

Secondary circuit power frequency withstand voltage (1min)

V

2000

 

 Table2 Circuit Breaker's Main Mechanical Data

NO

Item

Unit

Data

24kv

1

Clearance between contacts

mm

12±1

2

Contact's overtravel

mm

3.5±1

3

Open speed

m/s

1.4±0.2

4

Closing speed

m/s

0.7±0.2

5

Contact closing jumping time

 

ms

≤2

6

Pole center distance

mm

380±1.5

7

 Three pole open/close non-simultaneity

 

ms

≤2

8

Each pole conducting circuit resistance

 

μΩ

≤70

9

Closing time

ms

25-60

10

Open time

ms

20-60

11

Motor's rated power

 

w

40

 More Information,Please See Our Official Website: www.meletek.com 

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