Dgg Outdoor Switch Disconnectors for Medium Voltage Distribution Network Maintenance

• Customization: Available
• Type: High-voltage
• Structure: Double-column Disconnector
• Model NO.: GW4A-40.5W
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Vertical Rotary Type
• Number of Poles: Three Pole
• Grounding: Single Ground
• Series: Three
• Run: Turn the Horizontal
• Switching Mode: Double-Throw Type
• Common Model: Dgw11-15
• Structure of Operating: Electric
• Certification: ISO, CE, ISO9001, Type Tests
• Brand: Dgg
• Rated Voltage: 35/40.5kv
• Rated Frequency: 50Hz
• Rated Current: 630/1250/2000/2500/3150/4000A
• Customized: Customized
• Transport Package: Export Box
• Specification: Customized
• Trademark: DGG/ODM/OEM
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year
• Package Size: 80.00cm * 25.00cm * 45.00cm
• Package Gross Weight: 50.000kg

Product Description

Quality Supplier:
More Than 15 Years Of Experience In Supplying State Grid And Southern Power Grid.  
          
Get factory pricing. 
Request a quote now.

Professional supplier of integrated power transmission and distribution equipment.

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.

Bid No : 
REB ITEMS H-7.400B Through 7.800B
REB ITEM:H-1.100
BREB ITEM:C-1,2,3,4,5,10,11&13
MIUEPDSP GD-8 FY 2024-25
MIUEPDSP GD-8 FY 2024-25
27.29.0000.012.07.012.25- 739
20-2025
EDMS 17-401-2
EDMS 17-400-2 
ICB/DCSD-082/83-08
DD1/P&D/ICB/2025/028/D
CEB SPECIFICATION 082:2019
DD4/P&D/ICB/2024/010/D 
CEB/AGM(DD3)/P&D/ICB/2025/25/BPC 
TENDER Y103092
NO-DIS-MA-2205 
NO-DIS-MA-6003
NO-DIS-MA-7006
NO-DIS-MA-7007
...
For more information, please feel free to contact us.

GW4A-40.5W Series

Outdoor High Voltage AC Isolation Switch 

GW4A-40.5 series improved outdoor high-voltage AC isolation switch (hereinafter referred to as "isolation switch") is an outdoorhigh-voltage switchgear with a rated frequency of 50Hz. 1t is used for switching 35kV high-voltage lines with votage and withoutload, as well as for electrical isolation of high-voltage busbars, circuit breakers and other electrical equipment under maintenancefrom live high-voltage lines. 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 voltage 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	40.5
Rated frequency		Hz	50
Rated current		kA	630	1250	2000 2500	3150 4000
Rated short-term withstand current		kA	20/25	25 31.5	31.5	40 50
Rated short-term withstand current (peak)		kA	50/63	63/80	80	100 125
Rated short-term power frequency withstand voltage	Interphase and ground (dry test)	kV/min	95/1
	Interphase and ground (dry test)		118/1
	Interphase and ground (wet test)		95/1
Rated lightning impulse withstand voltage	Interphase and ground	kV	185
	Fracture surface		215
Duration of rated short-term withstand current	Slsolation switch	S	4
	Grounding switch		2
Main circuit resistance		μ Ω	≤ 100		≤ 80
Creepage distance		mm	≥ 1256(e-level anti fouling)
Pollution level	Manual operation mechanism		CS14G (without grounding switch)
			Main switch CS14G, ground switch CS11(with single/double grounding switch)
Creepage distance	Electric motor operating mechanism	CJ6 type, motor voltage AC380V or DC220V control voltage AC220V or DC220V. auxiliary contact 8 normally open and 8 normally closed(standard configuration)
Mechanical lifespan		Times	5000(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.
 

 

 

Outline & Installation Dimensions
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Why Choose DGG

Denggao Electric Co., Ltd.

 

DGG has successfully passed various certifications including IEC, KEMA, TUV, Type Test Reports.

 

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.

DGG's Cooperative Partner
Denggao Electric Co., Ltd.

DGG Projects
Denggao Electric Co., Ltd.

DGG's Certifications & Test Reports
Denggao Electric Co., Ltd.

Note:If you need more information about DGG's certificates & test reports,please contact us.

 

Get Project Support Easily

 

At DGG, we make complexity simple! Follow these 3 steps to get started now!

 

1.Tell Us What You Need:
Describe your needs as specifically as possible. Please provide drawings, reference pictures, and share your ideas.

2.Receive Solutions and Quotation:
We will create the best solution based on your requirements and drawings. You will receive a specific quotation within 24 hours.

3.Approval for Mass Production:
We will begin production once we receive your approval and deposit, and we will arrange the shipment thereafter.

We are a trusted supplier to State Grid and China Southern Power Grid,providing equipment
for over 15 years with proven long-term performance.

This gives us the confidence to expand globally and share our
high-quality products worldwide.

Our products are backed by multiple type test reports, ensuring absolute safety and reliability.

We are confident we will be your best choice.