40.5kV Assembly Type Three Phase Current Integrated Distribution Cabinet
Product Name: 40.5kV Assembly Type Three Phase Current Integrated Distribution Cabinet
Category: high voltage complete equipment series
Normal service conditions
- Ambient air temperature: temperature + 40 ℃ ~ - 15 ℃.
- relative humidity: daily average relative humidity: ≤ 95%.
- The daily average water vapor pressure shall not exceed 2.2kpa;
- Monthly average relative humidity: ≤ 90%;
- The monthly average water vapor pressure shall not exceed 1.8kpa;
- Elevation: below 1,000 m.
- Earthquake intensity: no more than 8 degrees.
- The surrounding air shall not be corrosive or obviously polluted by combustible gas, and water vapor.
- No violent vibration site.
- When used beyond the normal conditions specified by the GB3906, the user and the manufacturer shall negotiate.
Main technical parameters of the vacuum circuit breaker
| Name |
Unit |
Figure |
| Rated voltage |
kV |
40.5 |
| Rated frequency |
Hz |
50 |
| Fixed working frequency withstand voltage |
kV |
95/1min |
| Lightning impact withstand voltage |
kV |
185 |
| Rated current |
A |
1250 1600 2000 |
| Rated short-time tolerance current |
KA |
20 25 31.5 |
| Rated short open off current |
kA |
20 25 31.5 |
| Rated peak tolerance current |
kA |
50 63 80 |
| Rated short-circuit duration |
ms |
4 |
| Interlock time |
ms |
30≤t≤60 |
| Between time |
S |
50≤t≤100 |
| Rated short-circuit open current times |
Order |
20 |
| Mechanical life |
Order |
10000 |
| Levels of protection |
|
IP43 |
Three, structural characteristics
1. The cabinet structure adopts the assembly type, and the circuit breaker adopts the trolley floor type structure;
2. Equipped with a new composite insulated vacuum circuit breaker, with the characteristics of simple interchangeability;
3. The screw screw propulsion mechanism is equipped with the manual frame, which can easily move the trolley and prevent misoperation and damage to the propulsion structure; 4. All operations can be carried out in the closed cabinet door;
5. The interlock between the main switch, trolley and switch cabinet door adopts mandatory mechanical locking to meet the "five prevention" function; 6. Enough cable room space to connect multiple cables; 7. Fast grounding switch for grounding and circuit short circuit;
8. Housing protection level IP3X, the car compartment door open state, protection level IP2X;
9. The product meets GB3906-1991.DL404-1997 and I international IEC-298 standard.
