Contact Platform Support
Help CenterMetal-Oxide 220KV Lightning Arrester for Transformer and Switchgear Overvoltage Protection in Utility Grid
Product Spotlights
Related Products
-
Polymer-Housed 11KV Lightning Arresters for Overhead Power LinesUS$ 6MOQ: 100 Units -
11KV Silicone Rubber Surge Arresters With Factory Test ReportsUS$ 6MOQ: 100 Units
-
11KV Lightning Arresters for Transmission Lines and Wind FarmsUS$ 6MOQ: 100 Units
-
11KV Class II Surge Arresters With High Energy Absorption for Industrial UseUS$ 6MOQ: 100 Units
-
11KV Outdoor Silicone Rubber Lightning Arresters With IEC 60099-4 StandardUS$ 6MOQ: 100 Units
As a dedicated manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing robust overvoltage protection solutions for critical power infrastructure. Our Metal-Oxide 220KV Lightning Arrester is engineered to safeguard transformers and switchgear in utility grids against destructive voltage surges, ensuring system reliability and longevity. With years of expertise and a commitment to quality, we deliver components that meet the rigorous demands of high-voltage applications worldwide.
This arrester is a cornerstone of electrical protection, designed to intercept and safely divert transient overvoltages—often caused by lightning strikes or switching operations—away from expensive and vital equipment. By integrating advanced metal-oxide varistor technology, our product offers superior performance and durability, making it a trusted choice for utilities and industrial power systems seeking to minimize downtime and maintenance costs.
Our manufacturing process adheres to stringent quality control standards, ensuring every unit performs reliably under extreme conditions. We understand that grid stability is paramount, which is why our arresters are built to provide consistent protection, contributing to the overall safety and efficiency of your electrical network.
Detailed Product Features and Technical Specifications:
- Advanced MOV Technology: The core utilizes high-grade zinc oxide pellets with excellent non-linear voltage-current characteristics. This allows for a high conduction rate at overvoltage, effectively clamping the surge, and minimal leakage current at normal operating voltage, ensuring energy efficiency.
-
Robust Housing Design: The arrester is housed in a high-strength, weather-resistant porcelain or polymer housing. This design provides:
- Excellent pollution performance with high creepage distance.
- Superior mechanical strength to withstand environmental stresses.
- Hermetic sealing (available upon request) to prevent moisture ingress and internal degradation.
- High Energy Handling Capacity: Engineered to absorb and dissipate significant amounts of surge energy, protecting downstream equipment from thermal and dielectric stress.
- Stable Performance: Exhibits low power loss and high stability over a wide range of temperatures and operating conditions, ensuring long-term reliability.
- Flexible Installation: Designed for both vertical and horizontal mounting configurations to suit various substation layouts and space constraints.
Key Technical Parameters:
| Parameter | Typical Value / Specification |
| Rated Voltage (Ur) | 220 kV |
| Continuous Operating Voltage (Uc) | As per system design requirements |
| Nominal Discharge Current (In) | 10 kA, 20 kA (standard) |
| Residual Voltage (at In) | Specified per model; ensures equipment insulation coordination |
| Pressure Relief Class | High (for safe failure mode) |
| Creepage Distance | Customizable based on pollution level (e.g., 25 mm/kV, 31 mm/kV) |
| Operating Temperature Range | -40°C to +40°C (wider ranges available) |
Benefits for Our Clients:
- Enhanced Equipment Lifespan: By preventing overvoltage stress, our arresters extend the operational life of transformers, circuit breakers, and other switchgear, offering a strong return on investment.
- Reduced System Downtime: Reliable surge protection minimizes the risk of unexpected failures, leading to fewer outages and lower maintenance costs.
- Improved Grid Safety: Protects personnel and infrastructure by safely channeling dangerous surge currents to ground.
- Compliance with System Design: Our products can be tailored to meet specific insulation coordination requirements of your utility grid.
- Global Application Suitability: Designed to perform reliably in diverse climatic conditions, from the cold of Northern Europe to the humidity of Southeast Asia.
Frequently Asked Questions (FAQ):
-
Q: What is the primary function of this 220KV Lightning Arrester?
A: Its primary function is to protect high-voltage transformers and switchgear in utility grids from transient overvoltages, such as those caused by lightning or switching surges, by limiting the voltage to a safe level and discharging the surge current to ground. -
Q: How does the Metal-Oxide Varistor (MOV) technology work?
A: The MOV consists of zinc oxide grains that behave as insulators at normal system voltage. During an overvoltage event, these grains become conductive, creating a low-impedance path that diverts the surge energy away from protected equipment, then returns to a high-resistance state. -
Q: Can this arrester be used in heavily polluted environments?
A: Yes. We offer units with extended creepage distances and specially designed sheds on the housing to improve performance in areas with industrial pollution, coastal salt fog, or desert dust. -
Q: What are the key installation considerations?
A: Proper grounding is essential. The arrester should be installed as close as possible to the equipment it protects, with a short, low-inductance connection to ground. Mounting orientation (vertical/horizontal) should follow the manufacturer's guidelines for mechanical stability. -
Q: How do I select the correct rated voltage for my application?
A: The selection depends on your system's highest continuous operating voltage and the grounding method. Our technical team can assist in choosing the appropriate model based on your specific grid parameters and insulation coordination study. -
Q: What maintenance does this type of arrester require?
A: Metal-oxide arresters are generally maintenance-free. However, periodic visual inspections for physical damage, contamination, or leakage are recommended. Some models may include a monitoring device to track leakage current. -
Q: Are your products certified for international markets?
A: Jinhua Dika operates under a comprehensive quality management system. Relevant product standards and certifications can be discussed and provided based on the destination market's requirements. -
Q: What is the typical lead time for an order?
A: Lead times vary based on order quantity and customization. Standard models typically have shorter lead times. Please contact our sales team for a precise delivery schedule.
Trust and Commitment:
Jinhua Dika Electrical Equipment Co., Ltd. brings over a decade of manufacturing excellence to the global market, serving clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and beyond. With an annual export value ranging between US$1 Million and US$1.5 Million, we have established a solid reputation for reliability and quality. Our dedicated team of 11-50 professionals ensures that every Metal-Oxide 220KV Lightning Arrester meets exacting standards before shipment from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo.
Choosing our arrester means investing in a component backed by a manufacturer's direct commitment to performance and durability. We invite you to enhance the resilience of your utility grid with our proven overvoltage protection solution. For detailed technical data sheets, pricing, or to discuss your specific application needs, please contact our team today. Let us partner with you to secure your critical power infrastructure.
Send Inquiry to This Supplier
You May Also Like
-
11KV Outdoor Arresters for Railway Electrification SystemsUS$ 6MOQ: 100 Units
-
Outdoor 11KV Lightning Arresters With Silicone Rubber Housing and 20kA RatingUS$ 6MOQ: 100 Units
-
11KV Metal Oxide Lightning Arresters for Substation and Distribution NetworksUS$ 6MOQ: 100 Units
-
11KV Lightning Arresters With 5-Year Warranty and Technical SupportUS$ 6MOQ: 100 Units
-
11KV Zinc Oxide Surge Arresters With 10KA Discharge CapacityUS$ 6MOQ: 100 Units
-
HY10CX-13-40 10KV Outdoor High-Voltage Copper Oxide Arrester for Power Distribution CabinetsUS$ 100MOQ: 5 Units
-
HY10CX-13-40 High-Voltage Arrester 10KV With Mill Test Report for Electrical GridsUS$ 100MOQ: 5 Units
-
Durable HY10CX-13-40 10KV Outdoor Arrester With 2-Year WarrantyUS$ 100MOQ: 5 Units
-
10KV Copper Oxide Arrester HY10CX-13-40 for Outdoor Substation ProtectionUS$ 100MOQ: 5 Units
-
Zinc Oxide Arrester YH5WZ 3KV 6KV 10KV 35KV 66KV 110KV for Power DistributionUS$ 21MOQ: 100 Units
