| Breaking Capacity: | High Voltage Circuit Breakers |
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| Operation: | Electric Type |
| Speed: | Normal Type Circuit Breaker |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier LW3-12 primary and secondary fusion SF6 circuit breaker (hereinafter referred to as circuit breaker) is a new generation of products developed by our company according to the requirements of the national grid primary and secondary fusion complete set of column switches.
The circuit breaker meets the requirements of the primary and secondary fusion set of column switches in the national grid, and has the advantages of compact structure, reasonable layout and complete functions. The indicators of the circuit breaker are in line with the requirements of the State grid primary and secondary fusion complete set of column switches, and through the China Electric Power Research Institute Co., Ltd. primary and secondary fusion special testing.
The circuit breaker adopts three-phase protection current transformer, zero sequence current transformer and zero sequence voltage sensor with unified parameters. It has the characteristics of wide measuring range, high measuring accuracy and high reliability. With the combination of primary and secondary fusion controller, it can quickly and accurately determine various line faults.
Normal service environment
1. Ambient air temperature :-40°C~+40C;
2. Altitude: not more than 3000m;
3. The surrounding air can be polluted by dust, smoke, corrosive gas, steam or salt spray, pollution level :IV;
4. Wind speed does not exceed 34m/s(equivalent to 700Pa on the surface of the cylinder);
5 Vibration or ground movement from outside switchgear and control equipment is negligible;
6. The amplitude of electromagnetic interference induced in the secondary system does not exceed 110kV.
| Rated short-circuit breaking current | KA | 20 |
| Rated short-time withstand current and time | KAS | 20/4 25/4 31.5/4 |
| Rated short time current | KA | 20 |
| Rated peak withstand current | 50 | |
| Rated cable charging current | A | 25 |
| Rated operating sequence | Minute -0.3s- combined minute -180s- combined minute | |
| Rated working pressure (gauge pressure 20ºC) | MPA | 0.35 |
| Minimum functional pressure (gauge pressure 20ºC) | 0.35 |
ABOUTUS
Shenheng Power Equipment CO.,LTD is a company specializing in the production of high and low voltage switch power transmission and distribution equipment and high, low voltage electrical components, one of the professional production enterprises, the production of all fully insulated and fully sealed inflatable cabinet intelligent solid insulation ring main unit,outdoor high voltage cable branch box,box-type substation, etc. Product quality is stable, reliable, It is deeply trusted and approved by the customers.
Manufacturing of the main products are YBW box-type substation KYN61-40.5,KYN28A-24,KYN28A-12,XGN2-10,HXGN-10 high voltage switch gear,XGN ring net cabinet SHSRM inflatable ring main unit,SHSG solid ring main unit,MNS.GCS,GCS,GGD,XL low voltage switch gear,vacuum circuit breaker,oil immersed transformer,dry type transformer current /potential transformer,load break switch and other power transmission and distribution equipment.
For a long time also for all kinds of metallurgy,ship building,electric power,mining, and intelligent buildings. high-rise buildings, hospitals, schools and other industries to provide high quality power transmission and distribution of complete sets of equipment and electrical control equipment.The company has a strong technical force, sophisticated technology and sophisticated testing methods, and the products sell well across the country.
1.Are you a trading company or a manufacturer?
We are a professional factory with 10 years of experience in the field of high and low voltage switch gear and substation. Transformers, cables, distribution boxes and various electrical equipment, such as vacuum circuit breakers, load breaking switches, etc. Our factory is an excellent supplier of the State Grid Corporation of China.
2.Do you accept custom service?
We provide OEM/ODM services, according to your drawings and parameters, our professional technical and national team can provide satisfactory solutions.
3.What is your minimum order quantity?
Our minimum order quantity is 1 piece.
4.What is your lead time?
It depends on your product requirements and quantity. It usually takes 5-10 working days.
5.How do you solve quality problems?
Please provide detailed photos of the quality problem. Our technical and quality inspection departments have done a good analysis. We'll come up with a satisfactory solution within two days.
6.What are your terms of payment?
T/T payment can negotiate the balance of deposit.Western Union, letter of credit is also acceptable.
Suppliers with verified business licenses
Audited Supplier 
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