LN2-40.5 indoor high voltage SF6 vacuum circuit breaker is located on the operating mechanism panel, which can directly observe the status of the circuit breaker and operate the circuit breaker, which is suitable for various installation places.
The integrated design of the mechanism and the arc extinguishing system is adopted to achieve coordination between the operating mechanism and the load, reducing the closing power, improving the operating characteristics and improving the reliability.
With reinforced insulation design, it can meet the requirements of high altitude, condensation and Class I pollution environment.
The breaking capacitor current can reach 800A.
Model Description
L :Sulfur Hexafluoride Circuit Breaker
N:Indoor
2 :Design Number
40.5:Rated voltage:40.5kV
▢:Rated current:1250A 、1600A
▢:Rated short-circuit breaking current:25kA、31.5kA
Working Environment：
1. The altitude does not exceed 2000m;
2. Ambient air temperature: upper limit: +40°C; lower limit: -10°C in general areas, -25°C in alpine areas;
3. The relative humidity of the air: the daily average is not more than 95%, and the monthly average is not more than 90%;
Saturated vapor pressure: the daily average is not more than 2.2kPa, the monthly average is not more than 1.8kPa;
4. The surrounding air should not be significantly polluted by corrosive gas or flammable gas, water vapor, etc.;
5. Places without frequent violent vibrations.
Main Technical Parameters
|
Number |
Parameter |
Unit |
Value |
|
|
1 |
Rated voltage |
kV |
40.5 |
|
|
2 |
Rated insulation level |
Lightning impulse withstand voltage (peak) |
kV |
185 |
|
1 min power frequency withstand voltage |
kV |
95 |
||
|
3 |
Rated current |
A |
1250、 1600 |
|
|
4 |
Rated breaking current |
kA |
25、 31.5 |
|
| 5 |
Rated short-circuit making current |
kA |
63、 80 |
|
|
6 |
Rated peak withstand current |
kA |
63、 80 |
|
|
7 |
Rated short-time withstand current |
kA |
25 、31.5 |
|
|
8 |
Rated short circuit duration |
S |
4 |
|
|
9 |
Nominal Operation Sequence |
|
O 0.3-CO-180s -CO |
|
|
10 |
Switching a single capacitor bank breaking current |
A |
800 |
|
|
11 |
Rated out-of-step breaking current |
kA |
6.3 |
|
|
12 |
Closing time |
S |
≤0.15 |
|
|
13 |
Opening time |
minimum |
S |
≤0.10 |
|
rated |
S |
≤0.10 |
||
|
Highest |
S |
≤0.06 |
||
|
14 |
Rated short-circuit breaking current breaking times |
times |
20 |
|
|
15 |
Mechanical durability |
times |
6000 |
|
|
16 |
annual leak rate |
% |
≤l |
|
|
17 |
Moisture content of sulfur hexafluoride gas |
PPm(V) |
150 |
|
|
18 |
Sulfur Hexafluoride Gas Rated Pressure (20°C) |
MPa |
0.65 |
|
|
19 |
Locking pressure (20°C) |
MPa |
0.59 |
|
Structure and Mounting Dimensions
Q: Can we get a sample for reference?
A: Yes, as long as the goods are conventional type, and you will be charged sample cost plus related shipping cost. Once you place an order to us, we can return or deduct the sample cost to you.
Q: How to solve the quality problems after sales?
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.
Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 25-35days upon the receipt of advance payment.
Q: What is your terms of payment ?
A: We accept West Union, T/T, irrevocable L/C at sight. Prefer T/T 30% deposit before production, the balance against copy of B/L.
Q: Can you print our brand on the product?
A: Yes, of course, we also do OEM to print client’s brand on the product
