Over 30 years of experience in Power Transformer/ Fuse Cutout / Isolator Switch / RMU & Switchgears manufacturing.
As a professional manufacturer, DGG offers comprehensive grid system project solutions to ensure your project runs smoothly.
With DGG, you can bring your project concept to life in just a few days.
Our foreign colleague and over 50 experienced engineers are ready to support your project.
We are a seasoned manufacturer of both high- and low-voltage power system products.
LW38-40.5W
Outdoor High Voltage AC SF6 Circuit Breaker
Environmental Conditions:
Alitude: not exceeding 1000m. if the alttude is higher than 1000m, the rated insulation level should be adjusted accordingly;
Environmental temperature: upper limit +45'c, lower limit -40'ºC, maximum daly temperature diference of 25K;
Humidity: Daly average relative humidity ≤ 95%, monthly average relative humidity ≤ 90%;
Solar radiation intensity: ≥0.1W/cm2
Wind speed: 34m/s;
Wind pressure: 700Pa:
Pollution level: e-level:
lce thickness: ≤ 10mm;
Earthquake tolerance: horizontal acceleration of 0.3g, vertical acceleration of 0.2g.
LW38-40.5W outdoor AC high-voltage SF, circuit breaker (hereinater referred to as "circuit breaker") is an outdoor high-voltagedistribution switchgear with three-phase Ac 50Hz and rated voltage of 40.5kv. it can be used to open and close rated curent andjault curent, switch capacitor banks, and transfer lines, especially suitable for frequent operalion, and can also be used as aconnecting circuit breaker.
The circuit breaker uses SF6 gas as the arc extinquishing and inswlation medium, and is instaled outdoors. t adopts an elevatedceramic column structure.
The circuit breaker complies with technical standards such as GB/T 1984-2014 High Voltage AC Circuit Breakers, DL/T 402-2016High Voltage AC Circuit Breakers, and JB/T 9694-2008 High Voltage AC Sulfur Hexafluoride Circuit Breakers.
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Rated frequency
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Rated voltage
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Rated current
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Rated short-circuit breaking current
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Rated short-circuit making current
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Rated short-term withstand current
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Rated peak withstand current
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Rated out of step breaking current
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Rated short-circuit duration
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Rated short-circuit breaking current breaking frequency
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Rated short-termpower frequency withstand voltage
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Interphase and ground (dry test)
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Fracture surface(dry test)
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Interphase and ground (wet test)
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Auxiliary circuit to ground
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Rated lightning impulse withstand voltage
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Interphase and ground
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Fracture surface
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Rated operating voltage and rated voltage of auxiliary circuit
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Main circuitresistance
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Rated current 1600A and below
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Rated current greater than 1600A
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Note: If the parameters requested by the user are beyond the scope of the above table, they can be determined after consutaion with our company.
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Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
Why Choose DGG
Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
DGG has successfully passed various certifications including IEC, KEMA, CE and we possess comprehensive test reports covering Type Tests, Routine Tests, and Special Tests.
Our team consists of highly experienced professionals. We have continually invested in advanced production and testing equipment that meets global standards.
· Strong Support: The sales engineers you engage with are experienced and certified in English proficiency. We have several English-speaking team members and foreign colleagues, along with a dedicated group of over 50 experienced engineers who ensure smooth communication and provide viable design solutions.
· Strong Production Capacity: Currently, we operate four production bases encompassing an area of 40,000 square meters, employing over 300 staff members. We have more than 2,000 sets of our own molds, leading to an annual output value exceeding 500 million.
· Quality Assurance: Additionally, we maintain independent laboratories and hold numerous certificates and test reports, including those from IEC, KEMA, CNAS, and CSIT, as well as various Type Tests.
1. Over 30 Years of Experience: We have encountered and resolved a wide range of potential challenges in the technology sector.
2. Reliable Suppliers: We have access to the highest quality materials in the industry.
3. Experienced Workforce: Our skilled workers each have over 10 years of experience.
4. Cost-Effective Solutions: With our own production facility and direct sales, we can offer significant savings whether you are an agent or a direct buyer.
DGG has fully independent laboratories to test all aspects of developed products. It also possesses extensive product data, ready to address various customer issues in the future.
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Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
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Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
DGG's Certifications & Test Reports
Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
Note:If you need more information about DGG's certificates & test reports,please contact us.
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1.Tell Us What You Need:
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2.Receive Solutions and Quotation:
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3.Approval for Mass Production:
We will begin production once we receive your approval and deposit, and we will arrange the shipment thereafter.
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