Main characteristics
1. The structure of the lv and hv switchgear is bolt by aluminum zinc alloy board after the process of CNC machine tool and multi bending technology
2. Simple and effective "five-prevention" lock function, protect error operation
3. Can adopt VS1 and CD4 vacuum circuit breaker
4. Easy replacement of the circuit breaker and free exchange of the drawers
5. The cabinet can be installed by the wall, maintenance in the front, which reduces the floor space
6. All the operation can be done after the cabinet door is closed
7. Large space of the cable room can connect many cables
8. The relay room and the cable room can respectively add a heater to avoid freezing or erosion
9. High protection degree, protect the intruder of sundries and pests
Major technical parameters
Major technical parameters of vacuum switchgear
|
No. |
Name |
Unit |
Data |
|
|
1 |
Rated Voltage |
KV |
3,6,10 |
|
|
2 |
Rated Current |
A |
630,1000,1250,1600, 2000,2500,3150,5000 |
|
|
3 |
Rated Frequency |
Hz |
50 |
|
|
4 |
Rated short-time tolerant voltage |
kA |
20, 25, 31.5, 40 |
|
|
5 |
Rated peak tolerant voltage |
kA |
50, 63, 80, 100 |
|
|
6 |
Rated power frequency tolerant voltage |
Inter-polar /polar to ground |
kV |
42/1min |
|
Inter-fracture |
kV |
48/1min |
||
|
7 |
Rated lightening shock tolerant voltage |
Inter-polar /polar to ground |
kV |
75 |
|
Inter-fracture |
kV |
85 |
||
|
8 |
Rated lasting time of short-circuit |
s |
4 |
|
|
9 |
Protection degree |
Shell IP4X, interval room IP2X |
||
Major parameters of vacuum breakers
|
No. |
Name |
Unit |
Data |
|
|
1 |
Rated voltage |
kV |
3, 6, 10 |
|
|
2 |
Rated frequency |
Hz |
50 |
|
|
3 |
Rated current |
A |
630, 1250,1600,2000,2500,3150 |
|
|
4 |
Rated open circuit current when short circuit |
kA |
20,25,31.5,40 |
|
|
5 |
4s hot stable current |
kA |
20,25,31.5,40 |
|
|
6 |
Rated dynamic stable current(peak value) |
kA |
50,63, 80,100 |
|
|
7 |
Rated power frequency tolerant voltage |
Inter-polar /polar to ground |
kV |
42/1min |
|
Inter-fracture |
kV |
48/1min |
||
|
8 |
Rated lightening shock tolerant voltage |
Inter-polar /polar to ground |
kV |
75 |
|
Inter-fracture |
kV |
85 |
||
|
9 |
Rated lasting time of short-circuit |
s |
4 |
|
Instruction of the structure
The lv and hv switchgearl is composed of the fixed cabinet body and the drawable part (the drawers). The cabinet shell and the interval boards are all bolt with aluminum zinc alloy boards. The protection degree of the cabinet shell can reach up IP4X, and IP2X of each interval room.
The installation and the commission of the switchgear can be done in the front. The cabinet can stand by the wall to save the floor space and lower the investment.
The main bus bar is lead from one cabinet to another cabinet and it is firmed by branch little bus bar and electrostatic contact box. It is fixed by bus bar bushing when it goes through the side wall of the neighbor cabinet.
Adequate cable room not only can connect many cables, but also can install current transformer, grounding switch and lightning arrester and so no.
The internal plate and the panel of the relay room can install control and protection elements, the meter, the displaying instrument and the monitoring indicator and so on secondary elements.
Attached
▲structure diagram and overall dimension:
| A Bus bar room | B Hand buggy room of the circuit breaker | C Cable room | D Instrument room of the relay |
| 1.1 Pressure releasing device | 1.2 Control little slot | 1. The shell | 2. Branch bus bar |
| 3. Bus bar bushing | 4. The main bus bar | 5. Static contact device | 6. Static contact box |
| 7. Current transformer | 8. The ground switch | 9. The cable | 10. Lightning arrester |
| 11. Grounding main bus bar | 12. Assembly isolating board | 13. The isolating board | 14. The secondary plug |
| 15. Hand buggy of the circuit breaker | 16. The heater | 17. Withdrawable horizontal isolating board | 18. Operating mechanism of the grounding switch |
| 19. The bottom board |
FAQ