Vacuum Interrupter For Vcb

TD 12kv 1250A 31.5KA (JUC618) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4S
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50N
Force required to hold contacts opening at full stroke: 190±50N
Circuit resistance at lowest rated contacts force: �20μΩ
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: â?¤2 ms
Contacts re-bouncing clearance at opening operation: â?¤2 mm
Synchronism of three phases: â?¤1 ms

Model No.: TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
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: 25KA
Rated withstand current(peak value): 63KA
Rated duration of short circuit: 4S
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50N
Force required to hold contacts opening at full stroke: 190±50N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 2000±200N
Contacts bouncing duration at closing operation: =2ms
Contacts re-bouncing clearance at opening operation: =2mm
Synchronism of three phases: =1ms

Model No.: TD 12kv 1250A 31.5KA (JUC618) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4S
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50N
Force required to hold contacts opening at full stroke: 190±50N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms

Model No.: TD 12kv 1250A 31.5KA (JUC619A) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 48 KV
Rated lightning impulse withstand voltage: 85 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4 s
Mechanical life: 10,000 times
Closing force due to bellows and atmosphere: 120±50 N
Force required to hold contacts opening at full stroke: 190±50 N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms
* It Needs additional insultating protection.

Model No.: TD 12kv 1600A 31.5KA (JUC618A) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1600A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4 s
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50 N
Force required to hold contacts opening at full stroke: 190±50 N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms

Model No.: TD 12kv 1600A 31.5A (JUC619) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1600A
Rated power frequency withstand voltage: 48 KV
Rated lightning impulse withstand voltage: 85 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4 s
Mechanical life: 10,000 times
Closing force due to bellows and atmosphere: 120±50 N
Force required to hold contacts opening at full stroke: 190±50 N
Circuit resistance at lowest rated contacts force: =20µO
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1 mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 3150±200 N
Contacts bouncing duration at closing operation: =2 ms
Contacts re-bouncing clearance at opening operation: =2 mm
Synchronism of three phases: =1 ms
* It Needs additional insultating protection.

1. Brief introduction
TD 33KV 36kv 1600A 25KA (JUC632) vacuum interrupter for VCB
The interrupter adoption porcelain and ceramics lagging makes to insulate the outer shell. Contact is CuCr metal alloy material advanced technique of cup construction, break the discharge big. Insulate the level high, breaking the abiliting strong, the life span is long, mainten anle is sample, no explosion dangerous, no contaminate and the noise is low. The load switch main used electric power, machine, coal mine, chemical engineering, petroleum metallurgy etc. power transmission system used control with protect. more than keeping with at the multifarious operation.

Rated voltage: 33KV 36KV
Rated current: 1600A
Rated short-circuit breaking current: 25KA
Rated short-circuit making current: 63KA
Rated peak withstand current: 63KA
Rated short-time withstand current: 25KA
Rated short-circuit continuous time: 4 s
Rated single capacitor unit breaking current: 630A
Rated back to back capacitor unit breaking current: 400A
Rated short-time (1 min) withstand voltage: 95 KV
Rated contact pressure time-limit loop resistive: =25µO
Rated short-circuit breaking current breaking times: 30 Ops
Rated lightning impulse withstand voltage: 185 KV
Mechanical life: 10,000 Ops
Contact automatic: 200±50 N
Force required to hold contacts open at full stroke: 300±50 N
Contact-wear allowance thickness: 3 mm
Internal gas pressure: =1.33×10-3 Pa
Shelf life: 20 years

Model No.: TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB
Main technical parameters
Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 42 KV
Rated lightning impulse withstand voltage: 75 KV
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: 25KA
Rated withstand current(peak value): 63KA
Rated duration of short circuit: 4S
Mechanical life: 20,000 times
Closing force due to bellows and atmosphere: 120±50N
Force required to hold contacts opening at full stroke: 190±50N
Circuit resistance at lowest rated contacts force: �20μΩ
Storage life: 20 years
Limiting abrasion of contacts: 3 mm

Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: 11±1mm
Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: 2000±200N
Contacts bouncing duration at closing operation: â?¤2ms
Contacts re-bouncing clearance at opening operation: â?¤2mm
Synchronism of three phases: â?¤1ms

Items Value
Rated voltage 12KV
Rated current 1250A
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 25kA
Rated withstand current(peak value) 63kA
Rated duration of short circuit 4s
Mechanical life 20000 times
Closing force due to bellows and atmosphere 120±50N
Force required to hold contacts opening at full stroke 190±50N
Circuit resistance at lowest rated contacts force �20μΩ
Storage life 20 years
Limiting abrasion of contacts 3mm

 

Mechanical requiements of vacuum circuit breaker
Items Value
Clearance between opening contacts 11±1mm
Average opening speed(Contacts closing position~75% contacts opening distance) 1.1±0.2 m/s
Average closing speed(30% contacts opening distance~contacts closing position) 0.6±0.2 m/s
Rated contacts pressure 2000±200N
Contacts bouncing duration at closing operation â?¤2ms
Contacts re-bouncing clearance at opening operation â?¤2mm
Synchronism of three phases â?¤1ms