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Power distribution equipment is frequently exposed to transient overvoltage caused by lightning strikes, switching operations, and network disturbances. These voltage spikes can shorten equipment life or result in unexpected outages if effective protection is not installed.
The 18kV Zinc Oxide Surge Arrester is designed to limit overvoltage and provide an additional layer of protection for distribution transformers, switchgear, cables, and other critical electrical assets. By using metal oxide varistor technology, the arrester reacts rapidly to surge events and helps maintain system stability.
Its compact design and polymer housing make it suitable for installation in utility distribution networks, industrial facilities, and electrical infrastructure projects.
Designed for 18kV distribution systems
Zinc oxide varistor protection technology
Gapless operating structure
Fast response to transient overvoltage
Polymer insulated housing
Suitable for outdoor electrical installations
Stable operation under varying weather conditions
Low maintenance requirements
The product is commonly used in:
Distribution transformer protection
Utility power distribution networks
Pole-mounted electrical equipment
Medium-voltage overhead lines
Renewable energy grid connections
Industrial power systems
Unlike traditional protection devices, zinc oxide surge arresters operate without series gaps, allowing them to respond immediately when surge voltage exceeds a specified level.
Reduce insulation stress on equipment
Limit lightning-related damage
Improve network reliability
Protect transformers and switching equipment
Reduce maintenance and replacement costs
| Product Name | 18kV Zinc Oxide Surge Arrester |
| Rated Voltage | 18kV |
| Arrester Type | Metal Oxide Surge Arrester |
| Housing Material | Polymer |
| Application | Distribution Network Protection |
| Installation | Outdoor |
| Protection Function | Lightning and Switching Surge Protection |
| OEM Service | Available |
Reacon supplies surge protection equipment, transmission hardware, and electrical insulation products for utility and infrastructure projects. We support OEM manufacturing, customized specifications, and project-based production according to customer requirements.
1. Using high-quality silicone: small size, light weight, aging resistance, and long service life
2. Integrated design: integrated without gaps, enhances insulation ability, and eliminates electrical hazards
3. Arc-shaped design: The product design is beautiful, and the workmanship is meticulous and simple
4. Stainless steel nut: Made of stainless steel material
5. Having a product quality inspection certificate
6. Complete after-sales service
Type | MOA Rated voltage | MCOV KV(rms) | Current Impulse Residual Voltage | 2ms Rectangular current impulse withstand A | 4/10μs High current impulse withstand KA(crest) | ||
YH10W-3 | 1/4μs lighting current impulse KV(crest) | 8/20μs lighting current impulse KV(crest) | 30/60μs Switching current impulse KV(crest) | ||||
3 | 10 | 2.55 | 9 | 8.9 | 250 | 100 | |
Q1: What is the main function of an 18kV surge arrester?
A1: It limits transient overvoltage caused by lightning and switching operations, helping protect electrical equipment from damage.
Q2: What equipment can be protected by this arrester?
A2: The arrester is commonly installed near transformers, switchgear, distribution panels, and overhead line equipment.
Q3: Why use zinc oxide technology?
A3: Zinc oxide varistors provide fast response characteristics and effective overvoltage protection without requiring spark gaps.
Q4: Is the product suitable for outdoor installation?
A4: Yes. The polymer housing is designed for long-term outdoor service.
Q5: Can Reacon manufacture customized models?
A5: Yes. Customized voltage ratings, dimensions, and installation configurations are available according to project requirements.
