YH5W-10: Standard 10kV Polymer Surge Arrester

YH5W-10: Standard 10kV Polymer Surge Arrester

The YH5W-10 is a 10kV polymer-housed surge arrester providing core overvoltage protection for standard medium-voltage networks. Featuring a gapless zinc-oxide design and durable silicone housing, it delivers essential lightning and switching surge suppression with a focus on simplicity, compliance, and installation ease.

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Product Overview

The YH5W-10 surge arrester is a fundamental protective device for 10kV (nominal) distribution systems. Engineered as a cost-effective and reliable solution, its primary function is to limit transient overvoltages from lightning and switching events, thereby preventing insulation failure in transformers, cables, and switchgear. Designed to meet basic yet stringent industry standards (IEC, IEEE), it serves as a workhorse component in mainstream electrical infrastructure, balancing performance with practicality for a wide range of standard applications.

Product Features

◆ Core Protection: 17kV rated, 13.6kV continuous operating voltage, using proven gapless ZnO for basic voltage clamping.

◆ Standard Durability: IP67 silicone rubber housing protects against common outdoor moisture and contaminants.

◆ Essential Performance: Meets standard residual voltage ratings ( ≤45.0kV for 8/20μs) and energy capacity (40kA, 4/10μs) for typical surges.

◆ Practical Design: Lightweight (~4.2kg) with a simple form for easy installation on poles or racks.

◆ Standards Compliant: Manufactured to IEC 60099-4 and IEEE C62.11 for guaranteed baseline reliability and compatibility.

Product Advantages

◆ Proven Reliability: Uses established ZnO varistor technology for consistent surge suppression.

◆ Cost-Effective: Balances initial affordability with dependable performance, reducing lifetime costs for standard applications.

◆ Easy to Install & Maintain: Lightweight all-polymer design simplifies installation and requires minimal routine checks.

◆ Versatile Application: A general-purpose arrester suitable for most 10-15kV distribution networks under normal environmental conditions.

◆ Assured Quality: Manufactured under controlled systems for consistent batch-to-batch performance.

Usage Scenarios

◇ Standard Feeders: Overvoltage protection for typical 10kV overhead and underground utility lines.

◇ Basic Substations: For installation on transformer bushings, feeder poles, and in compact substations.

◇ Commercial/Light Industrial: Protects service entrances and standard equipment in facilities.

◇ Renewable Interconnection: Suitable for surge protection at small to medium-scale solar PV grid connection points.

◇ Retrofit & Upgrade: An ideal drop-in replacement for older arresters due to standard dimensions and ratings.

Technical parameters

Arrester type (HY)YH5W-10
Rated voltage (kV) 10
Max. continuous operating (kV) 8.4
1/4 μs Lightning current impulse 36
8/20 μs Lightning current impulse 30
30/60μs Switching currentimpulse 23
2000μs Rectangular current impulse withstand 150
4/10 μs High current impulse withstand 65
Leakage distance (mm) 372

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