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Vacuum Interrupter TD-12KV 2000A 25KA (JUC629B) from JUCRO Electric

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Product Detail

Vacuum Interrupter TD-12KV 2000A 25KA (JUC629B) for circuit breaker from JUCRO Electric


Main technical parameters

Items

Value

Rated voltage

12kV

Rated current

2000A

Rated frequency

50Hz

Rated power frequency withstand voltage

42kV

Rated lightning impulse withstand voltage

75kV

Rated short circuit breaking current

25KA

Rated short circuit making current(peak value)

63KA

Breaking operations under rated short circuit breaking current

30 times

Rated short time withstand current(4s)

25kA

Rated withstand current(peak value)

63kA

Rated duration of short circuit

4s

Mechanical life

20000 times

Closing force due to bellows and atmosphere

100±30N

Force required to hold contacts opening at full stroke

200±30N

Circuit resistance at lowest rated contacts force

≤20μΩ

Storage life

20 years

Limiting abrasion of contacts

3mm

Weight of moveable parts

1.2kg

 

Mechanical requiements of vacuum circuit breaker


Items

Value

Clearance between opening contacts

9±1mm

Average opening speed

1.0±0.25 m/s

Average closing speed

0.65±0.15 m/s

Rated contacts pressure

3100±200N

Contacts bouncing duration at closing operation

≤2ms

Contacts re-bouncing clearance at opening operation

≤2mm

Synchronism of three phases

≤1ms


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Product Detail

Vacuum Interrupter TD-12KV 2000A 25KA (JUC629B) for circuit breaker from JUCRO Electric


Main technical parameters

Items

Value

Rated voltage

12kV

Rated current

2000A

Rated frequency

50Hz

Rated power frequency withstand voltage

42kV

Rated lightning impulse withstand voltage

75kV

Rated short circuit breaking current

25KA

Rated short circuit making current(peak value)

63KA

Breaking operations under rated short circuit breaking current

30 times

Rated short time withstand current(4s)

25kA

Rated withstand current(peak value)

63kA

Rated duration of short circuit

4s

Mechanical life

20000 times

Closing force due to bellows and atmosphere

100±30N

Force required to hold contacts opening at full stroke

200±30N

Circuit resistance at lowest rated contacts force

≤20μΩ

Storage life

20 years

Limiting abrasion of contacts

3mm

Weight of moveable parts

1.2kg

 

Mechanical requiements of vacuum circuit breaker


Items

Value

Clearance between opening contacts

9±1mm

Average opening speed

1.0±0.25 m/s

Average closing speed

0.65±0.15 m/s

Rated contacts pressure

3100±200N

Contacts bouncing duration at closing operation

≤2ms

Contacts re-bouncing clearance at opening operation

≤2mm

Synchronism of three phases

≤1ms




Vacuum Interrupter TD-12KV 2000A 25KA (JU...

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