Ningbo Macwey Industrial Technology Co.,Ltd
| Payment Terms | T/T |
| Supply Ability | 3000pcs |
| Delivery Time | 15 days |
| Packaging Details | wooden case |
| Name | MV Circuit Breaker |
| Rated voltage | 12kV |
| Rated frequency | 50Hz |
| Rated cable charging current | 25A |
| Rated short-circuit breaking current | 20kA |
| Rated working pressure | 0.35Mpa |
| Brand Name | MacweyTEK |
| Model Number | LW-12F |
| Certification | IEC |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000pcs |
| Delivery Time | 15 days | Packaging Details | wooden case |
| Name | MV Circuit Breaker | Rated voltage | 12kV |
| Rated frequency | 50Hz | Rated cable charging current | 25A |
| Rated short-circuit breaking current | 20kA | Rated working pressure | 0.35Mpa |
| Brand Name | MacweyTEK | Model Number | LW-12F |
| Certification | IEC | Place of Origin | China |
| High Light | 50Hz MV Circuit Breaker ，Pole Mounted SF6 Gas Circuit Breakers ，SF6 Gas Circuit Breakers Outdoor | ||
The 12kV outdoor pole-mounted SF6 circuit breaker 12kV 630A Recloser SF6 CB
The 12kV outdoor pole-mounted SF6 circuit breaker is a new generation product
developed by our company to meet the new requirements of the primary and
secondary integration of the national grid.The switch configuration fully meets
the requirements of the primary and secondary integration of the national grid.
Mass production.The switch has a compact structure,a reasonable layout,
and complete functions.All indicators meet the requirements of the primary
and secondary fusion of the State Grid.It adopts unified parameter protection CT,
zero sequence CT and zero sequence voltage sensors.It has a wide measurement
range,high measurement accuracy,and reliability High characteristics,complete
analog quantity is convenient for accurate determination of various faults on the line.
Operating environmental conditions
◆ Ambient air temperature:-40℃~+40℃;
◆ Altitude:no more than 3000m;
◆ The surrounding air can be contaminated by dust,smoke,corrosive gas,steam or salt mist.Pollution level:Grade IV;
◆ The wind speed does not exceed 34m/s(equivalent to 700Pa on the surface of the cylinder)
◆ Vibration or ground motion from outside of switchgear and control equipment can be ignored;
◆ The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.10kV.
The main technical parameters
Electrical technical parameters
|
Project |
Unit |
Parameter |
|
Rated voltage |
kV |
12 |
|
Rated frequency |
Hz |
50 |
|
Rated current |
A |
630 |
|
Rated short-time withstand current |
kA |
20 |
|
Rated short-time withstand current passing time |
S |
4 |
|
Rated short-time withstand current(peak value) |
kA |
50 |
|
Rated short-circuit making current (peak value) |
kA |
50 |
|
Rated cable charging current |
A |
25 |
|
Rated short-circuit breaking current |
kA |
20 |
|
Rated operating sequence |
|
Points-0.3s-he points-180s-he points |
|
Rated working pressure (at gauge pressure Mpa at 20℃) |
|
0.35 |
|
Minimum functional pressure(at gauge pressure Mpa20℃) |
|
0.25 |
|
Project |
Unit□ |
Parameter |
|
|
Rated power frequency withstand voltage(1 minute) (Rated insulation level at minimum working pressure) |
Alternately and relatively |
kV |
42 |
|
Insulation break |
kV |
48 |
|
|
Rated lightning impulse withstand voltage(BIL) (Rated insulation level at minimum working pressure) |
Alternately and relatively |
kV |
75 |
|
Insulation break |
kV |
85 |
|
|
Rated mechanical stability |
breaker |
|
10000 times(E2 level) |
|
Annual leakage rate of SF6 gas |
|
≤0.5% |
|
|
Rated closing/opening operating voltage |
V |
DC24V |
|
|
total weight |
kg |
175 |
|
|
Dimensions(L×W×H) |
mm |
1015×950×580 |
|
|
Closing time |
Rated operating voltage |
ms |
50±ms |
|
Maximum operating voltage |
ms |
40～60 |
|
|
Minimum onerating voltage |
ms |
40～60 |
|
|
Opening time |
Rated operating voltage |
ms |
40±ms |
|
Maximum operating voltage |
ms |
35～55 |
|
|
Minimum operating voltage |
ms |
35～55 |
|
|
Closing different periods |
ms |
≤2 |
|
|
Different stages of opening |
ms |
≤2 |
|
|
Just close speed |
m/s |
2.6±0.2 |
|
|
Just split speed |
m/s |
2.6±0.2 |
|
|
Contact opening |
mm |
38±2 |
|
|
Contact overtravel |
mm |
22±1 |
|
|
Main circuit resistance of each phase(excluding cable) |
|
≤130 |
|
|
Energy storage motor power |
|
150W DC24V |
|
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2013
Total Annual:
$31000000-$35000000
Employee Number:
>218
Ecer Certification：
Verified Supplier
Ningbo Macwey Industrial Technology Co., Ltd. is a manufacturer specializes in R&D ,manufacturing and sales of MV&HV switching equipment and electrical accessories,which applied in voltage range from 10kV to 40.5kV, widely used in power transmission and distribution.The company is lo... Ningbo Macwey Industrial Technology Co., Ltd. is a manufacturer specializes in R&D ,manufacturing and sales of MV&HV switching equipment and electrical accessories,which applied in voltage range from 10kV to 40.5kV, widely used in power transmission and distribution.The company is lo...
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