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YH10W-11
REACON
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Distribution transformers and feeder circuits are among the most exposed components in overhead electrical networks. Lightning activity, switching operations, and fault recovery events can introduce temporary overvoltages that place additional stress on insulation systems and connected equipment.
The Reacon YH10W-11 Polymeric Metal Oxide Arrester is designed for installation at transformer connection points, feeder exits, and other locations where surge energy must be controlled before it reaches sensitive assets. The arrester utilizes gapless metal oxide technology to respond rapidly to transient voltage events while maintaining stable performance during normal system operation. Gapless zinc oxide arresters are widely used in modern distribution systems because of their fast response and energy absorption capability.
Product Information
| Item | Description |
| Product Name | YH10W-11 Metal Oxide Arrester |
| Housing Material | Polymeric Housing |
| Technology | Gapless Zinc Oxide MOV |
| Rated Voltage | 11kV Class |
| Application | Transformer & Feeder Protection |
| Installation | Outdoor Utility Networks |
| OEM Service | Available |
Typical YH10W-11 models are designed around 11kV systems with MCOV values near 9.4kV, depending on specification and manufacturer requirements.
The arrester combines metal oxide varistor blocks with a polymeric external housing. This construction is commonly selected for outdoor utility installations where environmental exposure, contamination, and weather resistance are important considerations.
Gapless zinc oxide technology
Polymeric weather-resistant housing
Suitable for outdoor installation
Designed for medium-voltage systems
Compatible with transformer protection schemes
Suitable for overhead feeder applications
Lightweight structure
Available for various utility network configurations
Modern MOV arresters operate with very low current under normal voltage conditions and rapidly conduct surge energy during overvoltage events.
The YH10W-11 arrester is commonly used in:
Pole-mounted transformer installations
Distribution feeder circuits
Overhead line transition points
Rural electrification networks
Utility service entrances
Recloser and switch locations
Renewable energy connection points
Distribution automation projects
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-11 | 1/4μs lighting current impulse KV(crest) | 8/20μs lighting current impulse KV(crest) | 30/60μs Switching current impulse KV(crest) | ||||
6 | 9.4 | 40 | 33 | 30 | 250 | 100 | |
Effective insulation coordination requires protection devices that limit surge levels to values acceptable for connected equipment.
Limit lightning-induced overvoltages
Reduce switching surge exposure
Support transformer insulation systems
Improve feeder protection planning
Assist long-term asset management strategies
Rather than functioning only as a lightning protection device, the arrester serves as an integral part of overall network insulation coordination planning. This positioning helps differentiate the page from generic “lightning arrester” content and creates stronger topical relevance for Google.
As utilities continue upgrading distribution infrastructure, protection devices must support both conventional overhead systems and increasingly automated feeder networks.
Utility distribution projects
EPC power infrastructure construction
Transformer replacement programs
Rural network expansion
Renewable energy interconnections
Electrical system modernization projects
What is the primary purpose of the YH10W-11 arrester?
It is used to limit transient overvoltages and support protection of transformers and distribution feeder equipment.
Why is a gapless design used?
Gapless MOV technology responds rapidly to surge events without relying on traditional spark-gap structures.
Where is the arrester commonly installed?
It is frequently installed near transformers, feeder terminals, and overhead distribution line equipment.
Is the housing suitable for outdoor applications?
Yes. Polymeric housings are widely used in outdoor utility environments because of their lightweight and weather-resistant characteristics.
Can customized ratings be supplied?
Yes. Different configurations and project-specific requirements can be manufactured according to customer specifications.
