Product Description

21kV Electrical Surge Arresters Metal Oxide Zinc Arrester Gapless Type
The polymer lightning arrester, renowned as a surge arrester, utilizes the exceptional nonlinear volt-ampere characteristics of zinc oxide. Under normal operating conditions, the current passing through the arrester remains exceedingly minimal, measurable in microamperes or milliamperes. However, when subjected to overvoltage, the resistance plummets dramatically, allowing the arrester to release the energy of the overvoltage effectively, ensuring robust protection. Unlike traditional arresters, this innovative model boasts a gapless design, leveraging the unique nonlinear properties of zinc oxide to efficiently manage leakage and interruption. In the absence of protection, a lightning strike can unleash thousands of volts onto an electrical system, severely disrupting transmission lines and potentially causing catastrophic damage to transformers and other vital electrical apparatus..
Technical Specification
Main Technical Parameter
Description |
Zinc oxide gapless lightning arrester |
Model |
YH10W-21 |
Line discharge class |
I |
Rated voltage of lightning arrester |
21 kV |
Rated discharge current rating |
10 kA |
Maximum continuous operating voltage |
17 kV |
DC 1mA reference voltage |
≥33 kV |
8/20μs lightning current impulse residual volatge |
≤63 kV |
Creepage distance |
750 mm |
High current, 4/10 μs, impulse withstand |
100 kA |
Company Introduction
Founded in the heart of China's Electric Capital, Yueqing City, in the pivotal year of 2007, Zhejiang Yuanneng Power Technology Co., Ltd. has risen as a beacon of innovation and reliability. With a steadfast commitment to advancing power infrastructure, Yuanneng Power excels in the domains of generation, transmission, and distribution. As a cutting-edge high-tech enterprise, we seamlessly blend production, development, sales, and customer service, offering a comprehensive array of products including polymer insulators, fuse cutouts, surge arresters, disconnect switches, and essential power fittings.
Embracing the ever-evolving landscape of globalization, Yuanneng Power aligns its production processes to meet the unique standards of the diverse international market, adhering to IEC, ANSI, IEEE, and GB standards. Our products have been rigorously tested and certified by prestigious institutions like Xi'an High Voltage Apparatus Research Institute Co., Ltd (XIHARI), the National Insulator & Lightning Arrester Quality Supervision Inspection Center, and the State Grid Electric Power Science Academy Quality Inspection Test Center, ensuring unmatched quality and performance.
Leveraging the swift and efficient logistics capabilities of Ningbo Port and Shanghai Port,
Yuanneng Power efficiently distributes its high-quality products to nations far and wide. Our current annual production capacity boasts impressive numbers: 500,000 pcs of polymer insulators, 500,000 pcs of lightning arresters, 350,000 pcs of dropout fuse cutouts, and 250,000 pcs of disconnect switches. This robust capacity empowers us to maintain a competitive edge while steadfastly supporting our clients' needs and aspirations.
At Yuanneng Power, we steadfastly uphold our guiding principles of 'Human-oriented, Credibility-based' development. Our unwavering dedication to these ideals fuels our drive for excellence and innovation. We earnestly invite you to join us in a journey of collaboration and success, as we unite to electrify and connect the world.








Q: Are you a manufacturer or a trade company?
We are a distinguished manufacturer with over 15 years of specialized experience in China.
Q: Where is your factory located?
Our factory is strategically situated at Room 101, Building 2, No. 28, Binhainansan Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China.
Q: Can I customize surge arresters according to my specific requirements?
Absolutely, we warmly welcome OEM & ODEM collaborations.
Q: Can I request a sample of the arrester for initial evaluation?
Certainly, the sample and courier fees are to be covered by your esteemed company, with reimbursement available upon your first order.
Q: How long does it take to prepare a sample?
Typically, samples can be prepared within one week.
Q: What is your minimum order quantity (MOQ) and delivery timeframe?
For arresters, the MOQ is set at 100 pcs, with a delivery period of 25 days.
Q: Do you possess type test reports for your arresters?
Yes, we do. While the testing fees are substantial, we have conducted tests on select models. Please contact us for more detailed information.
Q: What are your payment terms?
Our payment terms include T/T and L/C. If you have alternative suggestions, we are open to discussion.
Q: How are lightning arresters packaged?
Our packaging consists of secure carton and pallet packing to ensure safe delivery.
Q: What standards do your arresters adhere to?
Our arresters conform to the IEC 60099-4 standard.