| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Normal Type Circuit Breaker |
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Indoor Vacuum Circuit Breaker for Medium Voltage Switchgear Insulating Cylinder Structure VHE-12
VHE-12 vacuum circuit breaker is an indoor power distribution device with a rated voltage of 12kV and a50Hz three-phase AC system. lt is a new product that developed by our company independently. We have theintellectual property rights. The product can be compatible with the V'S1.VD4 and so on.In the field of medium voltage, Especially 12 kV, Vacuum circuit breaker has been a mainstream productThe briliant achievement of vacuum circuit breaker can't be separated with the progress of vacuum circuilbreaker technology inseparable. The technology of embedded poles is the embodiment of the great progress ofvacuum circuit breaker. Vacuum circuit breaker insulation has experienced ar insulation- composite insulation -solid insulation, lt has formed three generations of vacuum circuit breaker, in the first generation-air insulation,The live part all exposed in air, its insulation level changes with the air humidity, Dust and the collision of the transport process , And easy to be infuenced by small animals and other foreign bodies. in the secondgeneration- composite insulation, The arcing chamber protected by epoxy resin sleeve. But the sleeve doesnot wrap the high-voltage electric parts wholly, lt would be affected by dust, Moisture, insects and so on.The third generation of insulation is embedded pole, By the APG process, Using epoxy resin to seal the wholearc extinguish chamber and the upper and lower outlet. To do this, Not only reduce the arcing chamber sizeand also completely unaffected by the exteral environment (dust, moisture, etc.) so that improve theweatherability, Epoxy resin at this time not only as a part of the main insulation, At also be a support for themechanical, The electric field distribution and the stress distribution is superior to the various shapes ofinsulating clapboard structure. Circuit breaker can be as a handcart type and fixed type, So cooperate withKYN28A,XGN2,GG-lAand convenient in oil-free transform.
| No | Item | Unit | Value | |||||
| 1 | Rated Voltage | KV | 12 | |||||
| 2 | Rated insulation level | Rated lighting implus withstand voltage(peak) | KV | Phase,over the ground 75,fracture 80 | ||||
| 1 min Short-time power frequency withstand voltage(1 min) | KV | phase,over the ground 42,fracture 48 | ||||||
| 3 | Rated short circuit breaking current | KV | 31.5 | 40 | 50 | 63 | ||
| 4 | Rated current | A | 630 1250 |
630 1250 1600 2000 2500 3150 |
1250 1600 2000 2500 3150 4000 |
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| 5 | Rated thermo stability current(valid) | KA | 20 | 25 | 31.5 | 40 | 63 | |
| 6 | Rated dynamic stability current(peak) | KA | 50 | 63 | 80 | 100 | 173 | |
| 7 | Rated short-circuit making current(peak) | KA | 50 | 63 | 80 | 100 | 173 | |
| 8 | Rated operation of short-circuit breaking current interruption | times | 50(40KA=30 63KA=8) | |||||
| 9 | Power frequency withstand voltage of secondary circuit(1 min) | V | 2000 | |||||
| 10 | Rated opreating sequence | O-0.3s-CO-180s-CO CO-150min-CO(63KA) |
||||||
| 11 | Rated thermo stability time | S | 4 | |||||
| 12 | Rated breaking current (a capacitor/back to back capacitor) | A | 630/400 800/400(40KA) 400/630(63KA) | |||||
| 13 | Mechanical life | times | 30000 (10000 63KA) | |||||
| NO | Item | Unit | Value |
| 1 | Contact distance | mm | 10±1 |
| 2 | Contact over travel | mm | 3.5±0.5 |
| 3 | Opening speed | m/s | 1.0±0.2 |
| 4 | Closing speed | m/s | 0.6±0.2 |
| 5 | Contact bouncing duration at closing opreation | ms | ≤2 |
| 6 | Distance | mm | 210±1.5 / 275±1.5 |
| 7 | Three-pole simulaneity | ms | ≤2 |
| 8 | Conductive circuit resistance of each phase | μΩ | ≤630 ( 630A ) ,≤50 ( 1250A ) ≤35 ( 1600A-2000A ) ,≤25 ( ≥2500A ) |
| 9 | Closing time | ms | 35~70 |
| 10 | Opening time | ms | 15~50 |
Xiaogan Hanguang Senyuan Electric Co., Ltd, The former state-owned ndustrial enterprise which wasrestructured as a joint-stock enterprise, ls located in high technical development zone in Xiaogan cit, Hubei provinceSince the company had successfully developed ZN28A-12, ZN23 -40.5 series of a vacuum circuit breaker in1995, The company continuously engaged in development and produce 40. 5kv and lower voltage vacuum circuitbreaker, Vacuum contacto, Vacuum load break switch all along. Our 12-40.5kv vacuum circuit breakers arepublished in Recommend devices and manufactures for national urban and rural power grid construction and reformissued by State Economic and Trade Commission.
1.You inquuiry related to our products or prices will be replied in 24hours
2.Well-trained and experienced staffs to answer all your enquires in fluent english
3.OEM & ODM, any your costomized lighings we can help you to design and put into product
4.Distributoershio are offered for your unoque design and some our current models
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1. Our all items are 100% authentic ,please provide details of the address before purchase , So we can calculate the shipping discounts and the best transportation.
2. According to the customer's requirement ,different specifications of the items can be mixed shipments and lower freight.
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