Dgg Transformer Neutral Gap Grounding Protection Device Lighting Overvoltage 110kv Isolation Switch

• Customization: Available
• Type: High-voltage
• Structure: Double-column Disconnector
• Model NO.: DGNPD
• Installation: Outdoor High-voltage
• Operation: Electric
• Grounding Mode: Grounding
• Movement Mode: Vertical Rotary Type
• Common Model: Dgw11-15
• Structure of Operating: Electric
• Certification: ISO, CE, ISO9001, Type Tests
• Brand: Dgg
• Rated Frequency: 50/60Hz
• Transport Package: Export Box
• 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

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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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.

DGNPD Series

Transformer Neutral Gap Grounding Protection Device
 

The DGNPD series transformer neutral point gap grounding protection complete set device (hereinafter referred to as the completeset device) produced by our company is developed to protect the insulation of the transformer neutral point from damage caused bylightning overvoltage, operating overvoltage, and power frequency (transient) overvoltage.

Project		Unit	DGNPD-85/180-60	DGNPD-95/250-72	DGNPD-95/250-72
Transformer neutral point withstand level	1.2/50 μ s lightning impulse withstand voltage (peak)	kV	180	250	325
	1 minute short-term power frequency withstand voltage	kV	85	95	140
Zinc oxide lightning arrester	Rated voltage (effective value)	kV	60	72	96
	Continuous operating voltage (effective value)	kV	48	58	77
	DC 1mA reference voltage	kV	≥ 86	≥ 103	≥ 137
	8/20 μs lightning impulse current residual voltage (peak)	kV	≥ 144	≥ 186	≥ 260
Discharge gap	Power frequency discharge voltage (effective value)	kV	67.5±5%	81±5%	108±5%
lsolation switch	Peak withstand current	A	400	400	400
	Rated current	kA	15.5	15.5	15.5
	Short time withstand current for 10 seconds	kA	4.2	4.2	4.2

Project		Unit	DGNPD-140/325-102	DGNPD-200/400-144	DGNPD-230/550-207
Transformer neutral point withstand level	1.2/50 μ s lightning impulse withstand voltage (peak)	kV	325	400	550
	1 minute short-term power frequency withstand voltage	kV	140	200	230
Zinc oxide lightning arrester	Rated voltage (effective value)	kV	102	144	207
	Continuous operating voltage (effective value)	kV	82	116	166
	DC 1mA reference voltage	kV	≥ 158	≥ 205	≥ 292
	8/20 μs lightning impulse current residual voltage (peak)	kV	≥ 260	≥ 320	≥ 440
Discharge gap	Power frequency discharge voltage (effective value)	kV	115±5%	162±5%	234±5%
lsolation switch	Peak withstand current	A	400	400	630
	Rated current	kA	15.5	15.5	50
	Short time withstand current for 10 seconds	kA	4.2	4.2	20

 

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
Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
 

 

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Why Choose DGG

Denggaoyun Imp & Exp (zhejiang) Co., Ltd.

 

 

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.
4. Cost-Effective and Efficient Solutions: Leveraging our integrated production facility and direct sales approach, we offer significant cost savings to both agents and direct buyers, making us the smart choice for value-driven excellence.
 

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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Denggaoyun Imp & Exp (zhejiang) Co., Ltd.

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DGG's Certifications & Test Reports
Denggaoyun Imp & Exp (zhejiang) Co., Ltd.
 

 

 

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2.Receive Solutions and Quotation:
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3.Approval for Mass Production:
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