YH5WX-51/134 35KV Gapless Lightning Arrester

⚡ Robust Surge Protection with Gapless Zinc Oxide Technology

YH5WX-51/134 35KV Gapless Lightning Arrester

The YH5WX-51/134 is a high-performance gapless metal oxide lightning arrester, specifically engineered for outdoor use in 51kV class distribution and sub-transmission systems. Built with advanced ZnO varistor elements and a weatherproof polymer housing, it offers superior surge discharge capability and long-term durability under severe environmental stress.

Unlike traditional gapped arresters, the YH5WX-51/134 provides consistent, spark-free operation with fast response time and low residual voltage—ideal for substations, pole-mounted equipment, and critical grid nodes.

📐 Technical Specifications

Parameter	Value
Model	YH5WX-51/134
Rated Voltage (Ur)	51kV
Maximum Continuous Operating Voltage (MCOV)	41kV
Rated Discharge Current	10kA
Lightning Impulse Withstand	≥134kV
Residual Voltage @ 10kA	≤134kV
Line Discharge Class	Class 2 or Class 3
Housing Type	Polymer (Silicone rubber)
Creepage Distance	≥1300mm
Sealing Grade	IP65
Compliance	IEC 60099-4, GB/T 11032

✅ Key Features

Gapless ZnO Core Technology
Instant response to overvoltages with no spark gap aging or maintenance.
High Pollution Resistance
The hydrophobic polymer housing is ideal for coastal, desert, and industrial zones.
Long-Term Stability
Withstands multiple surge events with low residual voltage and no degradation.
Compact and Lightweight Design
Easy pole or transformer mount, with lower mechanical stress on structures.
Fully IEC & GB Certified
Tested per international standards with full type test reports available.

🌍 Application Scenarios

Pole-mounted transformers in 35–66kV grids
Outdoor switchgear surge protection
Distribution lines in coastal or high-altitude zones
Renewable energy substations (solar, wind)
Urban or industrial power infrastructure

🌟 Real Customer Feedback

🔹 David M., Distribution Engineer – Hydro One, Canada
"Installed over 200 of these in our 44kV feeder upgrade. Performance under snow and ice is impressive."

🔹 Elena K., Project Lead – National Grid, UK
"YH5WX series fits well in our space-constrained stations. The compact size is a big advantage."

🔹 Jorge S., Substation Maintenance Supervisor – Enel, Chile
"Withstands desert sand and salt spray better than any porcelain arrester we've tried."

🔹 Alan P., Grid Expansion Team – Florida Power & Light, USA
"Zero failures in hurricane season. Hydrophobic shell keeps performance stable year-round."

🔹 Mikkel R., Renewable Energy EPC – Vestas, Denmark
"We use this model for wind turbines and solar inverter surge protection—reliable and easy to install."

❓ Frequently Asked Questions

• How is this different from gapped arresters?
It uses gapless ZnO elements, which are safer, faster, and more stable over time.

• Can this arrester be used in high-pollution environments?
Yes. It’s designed for coastal, chemical, and dusty regions with high creepage distance and silicone rubber housing.

• Is it replaceable without shutting down the whole line?
Yes, the compact outdoor design supports live-line replacement procedures.

• What standards does it comply with?
Fully tested to IEC 60099-4 and GB/T 11032 with detailed factory reports.

• Can it be customized for 55kV or 66kV use?
Yes, we offer custom variants and recommendations for MCOV matching on request.