断路器用真空灭弧室TD 12千伏 1250安 31.5千安JUC618
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
Circuitresistance 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±0.2m/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: ≤2ms
Contacts re-bouncing clearance at opening operation: ≤2mm
Synchronism of three phases: ≤1ms
在线联系供应商
Other supplier products
 |
断路器用真空灭弧室TD 12千伏 1250安 25千安 (JUC613) | Model No.: TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB Main technical parameters Rated voltage: 12 KV Rated current: 1250A Rated pow... |
 |
交流真空接触器 HVJ5 1.14千伏 250安 | General HVJ5 1.14 kv 250A AC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling of ... |
 |
接触器用真空灭弧室HCJ5 1.14千伏 125安 | HCJ5 1.14kv 125A vacuum interrupter for vacuum contactor The interrupter adoption porcelain and ceramics makes to insulate the outer shell. Contact... |
 |
交流真空接触器 HVJ5 1.14千伏 1000安 | General HVJ5 1.14 kv 1000AAC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling ... |
 |
真空接触器HVJ3 7.2千伏 | The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromag... |
Same products
 |
Electrical Outdoor Box | 卖方: Fly-Dragon Electrical Co., Ltd. | Nante Electrical Outdoor Box provides a practical solution for protecting electrical connections ... |
 |
Ring Blower (2RB310A11) Air Blower | 卖方: Greentech Industry (Jinan) Co., Ltd | Features:1. Beautiful surface2. Easy installation3. Low noise level4. No vibration, and therefore... |
 |
NMC Battery Module | 2P7S · 55Ah | 卖方: Linyi Lingong New Energy Tech Co., Ltd | The LGNE 55Ah battery moduleadopts a 2P7S configuration based on NMC lithium-ion cells, and is de... |
 |
LFP Battery Module | 1P12S · 105Ah | 卖方: Linyi Lingong New Energy Tech Co., Ltd | The LGNE 105Ah battery moduleadopts a 1P12S configuration based on LFP lithium cells, optimized f... |
 |
LGNE Battery Module | 卖方: Linyi Lingong New Energy Tech Co., Ltd | The LGNE battery modulecan be flexibly adapted to various mainstream cell brands, meeting differe... |
