Dgg Gw4a-12 Series 10kv 12kv Outdoor High Voltage AC Isolation Switch

Product Description

High-quality supplier to State Grid Corporation of China and China Southern Power Grid, providing equipment to the power grids for over 15 years.
 

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Professional supplier of integrated power transmission and distribution equipment.

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We are a seasoned manufacturer of both high- and low-voltage power system products.

GW4A-12 Series

Outdoor High Voltage AC Isolation Switch

GW4A-12 series improved outdoor high-voltage AC isolation switch (hereinafter referred to as "isolaion switch") is an outdoorhigh-voltage switchgear with a rated frequency of 50Hz. It is used for switching 10kV high-voltage lines with votage and withoutload, as well as for electrical isolation of high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage ines. lt can also be used for breaking and closing very small capacitive and inductive currents.
 
The isolation switch complies with technical standards such as GB/T 1985-2014 "High votage AC isolation switches and groundingswitches" and DL/T 486-2010 "High voltage AC isolation switches and grounding switches"

 

Project		Unit	Technical Parameter
Rated voltage		kV	12
Rated frequency		Hz	50
Rated current		A	400	1250	2000	2500
Rated short-term withstand current		kA	20/25	25/31.5	31.5	31.5/40
Rated short-term withstand current(peak)		kA	50/63	63/80	80	80/100
Rated short-term power frequency withstand voltage	Interphase and ground	kV/min	42/1
	Fracture surface		48/1
Rated lightning impulse withstand voltage	Interphase and ground	kV	75
	Fracture surface		85
Duration of rated short-term withstand current	Isolation switch	S	4
	Grounding switch		2
Loop resistance		μΩ	≤ 100		≤ 80
External insulation creepage distance		mm	≥ 372(E-level anti fouling)
Mechanical lifespan		Times	2000(lsolation switch/grounding switch)

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.

 

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. A Legacy of Over 30 Years of Experience: With over three decades of rich experience, we have expertly navigated and resolved countless challenges within the ever-evolving technology sector, ensuring our capabilities remain unmatched.
2. Network of Reliable Suppliers: Our robust connections with industry-leading suppliers ensure that we consistently access the highest quality materials available, maintaining our standard of excellence.
3. Skilled and Experienced Workforce: Our dedicated team of expert workers each bring over ten years of invaluable experience, guaranteeing superior results in every task undertaken.
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DGG takes pride in our fully independent laboratories, where we conduct rigorous testing on every developed product. We maintain a comprehensive database of product information, ensuring we are fully prepared to address any customer concerns efficiently and effectively in the future.

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