HY10CX-102/296 10kV Series Gap Line Type Zinc Oxide Arrester Composite Housing

Product Overview

Power system overvoltage protection is a key link in ensuring the safe operation of transmission and transformation equipment. Traditional arresters have problems of insufficient current carrying capacity and high residual voltage under lightning impulse and switching overvoltages, leading to frequent insulation breakdown accidents. The HY10CX-102/296 10kV series gap line type zinc oxide arrester adopts composite housing technology, combining zinc oxide nonlinear resistors with series gap structure, specially designed for 110kV system transmission lines, effectively limiting lightning overvoltage and switching overvoltage amplitudes. It is the core protection component for insulation coordination. This product features large current carrying capacity, low residual voltage and fast response speed, suitable for complex outdoor environments, significantly improving line lightning protection levels.

Organic housing metal oxide arresters combine the technical advantages of organic insulation materials and porcelain housing arresters, featuring good electrical insulation performance, high dielectric strength, anti-tracking, anti-corrosion, heat resistance, cold resistance, aging resistance, explosion-proof, hydrophobicity and good sealing performance. HY10CX-102/296 is suitable for AC 220kV and below power generation, transmission, transformation and distribution systems, limiting lightning and system internal operating overvoltage amplitudes to specified levels. It is the preferred lightning protection component for integrated, modular medium and high voltage transmission and transformation complete equipment. The same series includes HY5CX-90/260, HY10CX-90/260, HY10CX90/280 and other models, meeting different voltage levels and current carrying requirements.

Main Technical Parameters

Technical Features

• HY10CX-102/296 adopts zinc oxide nonlinear resistor discs. Under normal voltage, leakage current is only microampere level; during overvoltage, it instantly conducts thousands of amperes, automatically recovers after releasing energy, with nanosecond response speed.
• Series gap structure design effectively isolates system continuous voltage, extends valve plate service life, reduces aging risk, suitable for harsh environments such as high altitude and pollution.
• Composite housing uses silicone rubber material, excellent hydrophobicity, outstanding anti-tracking and anti-corrosion performance, temperature range from -60degC to +200degC, reliable explosion-proof performance.
• Current carrying capacity up to 600A (square wave), high current impulse withstand 100kA, residual voltage 296kV, protection level superior to similar products, meeting 110kV system insulation coordination requirements.
• Good sealing performance using integral injection molding process, no internal air gaps, moisture-proof and corrosion-proof, low operation and maintenance cost.

Application Scenarios

10kV series gap line type zinc oxide arresters are widely used in 110kV transmission lines, distribution lines, substation incoming protection and power plant outgoing sides. Particularly suitable for lightning-prone areas, strong lightning areas and complex terrain areas, protecting line insulators, transformers, circuit breakers, cables and other equipment from overvoltage damage. In power systems of petroleum, chemical, railway, metallurgy and other industries, this product serves as the core component of overvoltage protection, significantly reducing lightning trip rates and equipment damage rates. The series gap structure enables reliable operation under abnormal conditions such as single-phase grounding in the system, adapting to neutral non-effectively grounded systems.

Applicable Standards

This product model is compiled according to JB/T8459-1996 "Arrester Product Model Designation Method". Gapless products comply with GB11032-2000 "AC Gapless Metal Oxide Arresters" standard; gapped products comply with JB/T9672-2005 "Metal Oxide Arresters with Series Gaps" standard. Important parameters and configuration methods not clearly defined in the above standards shall be modified and implemented according to DL/T620-1997 "Overvoltage Protection and Insulation Coordination of AC Electrical Installations". All products pass type tests and routine tests before leaving the factory, including residual voltage test, current capacity test, sealing test and mechanical load test, ensuring reliable performance.

Selection Guide

When selecting, determine the specific model based on system rated voltage, continuous operating voltage, lightning impulse residual voltage and current carrying capacity requirements. For 110kV systems, HY10CX-102/296 is recommended, with rated voltage 102kV, residual voltage 296kV, square wave current capacity 600A, suitable for medium lightning intensity areas. If line lightning risk is higher or protection level requirements are stricter, HY10CX90/280 or HY10CX-90/260 can be selected. Installation method can be suspended or bracket type, ensuring series gap distance meets design requirements, and regularly check the composite housing surface condition and leakage current value.

Outline Dimensions

Summary

The HY10CX-102/296 10kV series gap line type zinc oxide arrester, with composite housing technology and zinc oxide nonlinear resistor technology as the core, provides reliable overvoltage protection solutions for 110kV transmission systems. The product features strong current carrying capacity, low residual voltage and good environmental adaptability, complying with GB11032 and JB/T9672 standards, and is basic equipment for power system insulation coordination. Combined with system parameters and operating environment during selection, it can effectively improve line lightning protection performance and reduce operation and maintenance costs.