YH5WX-100/260 Inverted Type 110kV Gapless Line Arrester | Composite Jacket MOA
The YH5WX-100/260 Inverted Type 110kV Gapless Line Arrester is a composite-housed metal oxide arrester (MOA) designed to protect 110kV transmission lines from lightning and switching overvoltages. Its gapless construction provides rapid surge response, while the silicone rubber housing offers reliable insulation and weather resistance for outdoor applications. The inverted mounting design also supports convenient installation and maintenance, making it suitable for overhead transmission lines and other 110kV high-voltage systems.
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The YH5WX-100/260 Inverted Type 110kV Gapless Line Arrester is a composite-housed metal oxide arrester (MOA) developed for overvoltage protection in 110kV transmission systems. Its gapless structure provides effective protection against transient voltage surges, helping safeguard transmission line insulation and connected electrical equipment.
Designed with an inverted mounting configuration, this line arrester is suitable for 110kV overhead transmission lines where reliable lightning and switching surge protection is required. The metal oxide varistor elements respond rapidly to transient overvoltages and discharge surge energy, reducing excessive voltage stress on the protected system.
By limiting lightning overvoltages and switching surges, the YH5WX-100/260 arrester helps reduce the risk of insulation failure and improves the operational reliability of 110kV transmission networks. Its composite housing also provides a practical solution for outdoor high-voltage applications requiring durable insulation and stable long-term performance.
Model and Meaning
Key Features
- Gapless Metal Oxide Design: The gapless MOA structure provides a fast response to transient overvoltages, enabling effective protection against lightning and switching surges.
- Inverted Mounting Configuration: The inverted installation arrangement simplifies equipment servicing and can help reduce maintenance-related power interruptions.
- Composite Silicone Rubber Housing: The silicone rubber jacket offers good weather resistance, insulation performance, and resistance to outdoor environmental conditions, making the arrester suitable for long-term outdoor operation with limited maintenance.
- Controlled Residual Voltage: With a maximum residual voltage of 260kV, the arrester provides coordinated overvoltage protection for insulation systems used in 110kV transmission applications.
Application Scenarios
The YH5WX-100/260 110kV Line Arrester can be applied in a variety of high-voltage transmission environments, including:
- 110kV overhead transmission line towers
- Cable termination and transition points
- Overhead branch lines and transmission line sections
- Mountainous regions and areas with frequent lightning activity
- Wind power and photovoltaic power transmission lines
- Outdoor installations where compact, lightweight, and low-maintenance surge protection is required
Selection and Installation Considerations
When selecting the arrester, the rated voltage and continuous operating voltage should be compatible with the characteristics of the 110kV system. During installation, the inverted mounting configuration and electrical connections should be correctly arranged according to the installation requirements.
A reliable grounding connection is essential for effective surge-current discharge. The grounding resistance should generally be maintained at 10Ω or below, with 5Ω or below recommended for areas with frequent lightning activity, subject to the applicable project standards and grounding design.
For long-term operation, periodic inspection of the arrester’s leakage current, insulation condition, and silicone rubber housing is recommended. These checks can help identify abnormal operating conditions and maintain reliable overvoltage protection.
Overall and mounting dimensions(mm)
