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Vacuum Interrupter JUCA-40.5KV 2000A 31.5EQ from JUCRO Electric

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Product Detail

Vacuum Interrupter JUCA-40.5KV 2000A 31.5EQ for circuit breaker from JUCRO Electric


Main technical parameters

Items

Value

Rated voltage

40.5kV

Rated current

2000A

Rated frequency

50Hz

Rated power frequency withstand voltage (1 min)

95kV

Rated lightning impulse withstand voltage

185kV

Rated short circuit breaking current

31.5KA

Rated short circuit making current(peak value)

80KA

Breaking operations under rated short circuit breaking current

20 times

Rated short time withstand current

31.5kA

Rated withstand current(peak value)

80kA

Rated duration of short circuit

4s

Mechanical life

10000 times

Closing force due to bellows and atmosphere

200±60N

Force required to hold contacts opening at full stroke

310±60N

Circuit resistance at lowest rated contacts force

≤35μΩ

Storage life

20 years

Limiting abrasion of contacts

3mm

 

Mechanical requiements of vacuum circuit breaker

 

ItemsValue
Clearance between opening contacts22±2mm
Average opening speed1.8±0.25 m/s
Average closing speed0.75±0.15 m/s
Rated contacts pressure3300±300N
Contacts bouncing duration at closing operation≤2ms
Contacts re-bouncing clearance at opening operation≤2mm
Synchronism of three phases≤2ms



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Product Detail

Vacuum Interrupter JUCA-40.5KV 2000A 31.5EQ for circuit breaker from JUCRO Electric


Main technical parameters

Items

Value

Rated voltage

40.5kV

Rated current

2000A

Rated frequency

50Hz

Rated power frequency withstand voltage (1 min)

95kV

Rated lightning impulse withstand voltage

185kV

Rated short circuit breaking current

31.5KA

Rated short circuit making current(peak value)

80KA

Breaking operations under rated short circuit breaking current

20 times

Rated short time withstand current

31.5kA

Rated withstand current(peak value)

80kA

Rated duration of short circuit

4s

Mechanical life

10000 times

Closing force due to bellows and atmosphere

200±60N

Force required to hold contacts opening at full stroke

310±60N

Circuit resistance at lowest rated contacts force

≤35μΩ

Storage life

20 years

Limiting abrasion of contacts

3mm

 

Mechanical requiements of vacuum circuit breaker

 

ItemsValue
Clearance between opening contacts22±2mm
Average opening speed1.8±0.25 m/s
Average closing speed0.75±0.15 m/s
Rated contacts pressure3300±300N
Contacts bouncing duration at closing operation≤2ms
Contacts re-bouncing clearance at opening operation≤2mm
Synchronism of three phases≤2ms





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