Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
Vacuum interrupter, also known as vacuum circuit breaker, is a device used to extinguish the arc in high voltage circuits. In the high voltage circuit, if the fault occurs, the current will produce an arc, which will bring great harm to the equipment, so it is necessary to use the arc extinguishing device, which is installed in the circuit breaker to ensure the safe operation of the equipment.
Note: The movable stem of the VI could only suffering no more than 45Nm twisting force and in order not to demage the metal bellows, the movable stem should be prevented from rotation when assembling. For more requirements please check the Instruction of Usage.
Item
|
Unit
|
Type |
| TD-40.5/2500-31.5G |
TD-40.5/2000-31.5G |
TD-40.5/1600-31.5G |
| Rated frequency |
Hz |
50 |
| Rated voltage |
kV |
40.5 |
| Short-time(1 min) power frequency withstand voltage |
kV |
48/118 |
| Lightning impulse withstand voltage (peak) |
kV |
215 |
| Rated current |
A |
2500 |
2000 |
1600 |
| Rated short-circuit breaking current |
kA |
31.5 |
31.5 |
31.5 |
| Rated short-time withstand current |
kA |
31.5 |
31.5 |
31.5 |
| Rated peak withstand current |
kA |
80 |
80 |
80 |
| Rated short-circuit making current |
kA |
80 |
80 |
80 |
| Rated single capacitor bank breaking current |
A |
630 |
| Rated back-to-back capacitor bank breaking current |
A |
400 |
| Rated duration of short-circuit |
s |
4 |
| Circuit resistance at min. rated contact force |
uΩ |
≤14 |
| Contact cloased force due to bellows and atmosphere |
N |
210±45 |
| Counterforce of contact at full stroke |
N |
300±50 |
| Mass of moving parts |
kg |
2.3 |
| Mechanical endurance |
Times |
10000 |
| Contact limit erosion |
mm |
3 |
| Switching operation of rated short-circuit breaking current |
Times |
30 |
| Shelf life |
Years |
20 |
| Internal gas pressure |
Pa |
<1.33X10-3 |
| Rated operating sequence |
O-0.3s-CO-180s-CO |
| Average opening speed (first 12 mm) |
m/s |
1.6±0.2 |
| Average closing speed (last 6 mm) |
m/s |
0.8±0.2 |
| Contact bounce duration at closing operation |
ms |
≤3 |
| Clearance between open contacts |
mm |
18±1 |
| Out of simultaneity of contact closing and opening |
ms |
≤2 |
| Rated contact pressure |
N |
3200+300 |
3200+300 |
3200+300 |
| Added external contact forecc at contact touch point |
N |
2400+200 |
2400+200 |
2400+200 |
| Max. rebound during opening |
mm |
≤3 |
Main Features
1. High arc extinguishing efficiency;
2. High operation reliability;
3. Small shape, light weight;
4. Connect and disconnect fast, high reliability;
5. Long life and low maintenance cost.
Outline Diagram Examples
Certifications
Audited Supplier 
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