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10 kV Zinc Oxide Surge Arrester from China - Trusted Suppliers and Factory for Overvoltage Protection Solutions
Product Overview
The 10 kV Zinc Oxide Arrester (Model 17/50) is a core protective device designed to shield various electrical systems from overvoltage damage. As a professional overvoltage protector, it plays a crucial role in ensuring the service life and operational reliability of key electrical equipment such as transformers, switches, capacitors, and motors.
Its core function is to mitigate the risks posed by atmospheric overvoltage (e.g., caused by lightning strikes), operating overvoltage, and power frequency transient overvoltage (resulting from power system operational anomalies). By participating in the insulation coordination of electrical systems, this arrester effectively maintains the integrity and stable operation of power systems, railway electrification systems, and communication networks.
Product Performance
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Excellent Core Material Performance
The core component is zinc oxide resistor sheet, which has outstanding nonlinear volt-ampere characteristics, laying a solid foundation for reliable operation.
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Stable Normal Operation
Under normal conditions, the operating current is controlled at microampere level, ensuring no interference with the efficient operation of connected electrical equipment.
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Rapid Overvoltage Response
It responds instantly to overvoltage. The current surges to thousands of amperes quickly, enabling rapid conduction and timely dissipation of overvoltage energy.
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Reliable Protection Effect
It effectively suppresses overvoltage in time, avoiding damage to electrical equipment and ensuring the safe operation of the electrical system.
Applicable Scenarios
Based on its excellent overvoltage protection performance and compatibility with various electrical systems, the 10 kV zinc oxide arrester (model 17/50) is widely applicable to multiple fields.
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Power Systems
Installed in substations, distribution networks, and power transmission lines to protect transformers, switches, mutual inductors, generators, and power cables.
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Railway Electrification Systems
Safeguards the electrical components of railway power supply lines and locomotives, ensuring the stable operation of railway transportation.
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Communication Systems
Protects communication power supply equipment and signal transmission equipment from overvoltage damage, maintaining the smoothness of communication networks.
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Industrial & Commercial Buildings
Suitable for industrial and mining enterprises, high-rise buildings, and other places with 10 kV electrical systems that require overvoltage protection.
Frequently Asked Questions
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What is a 10 kV zinc oxide arrester and what does it do?
A 10 kV zinc oxide arrester (model 17/50) is a protective device used in electrical systems to guard against overvoltage damage. It absorbs and dissipates excess voltage energy caused by lightning strikes, switching operations, or system anomalies, protecting equipment such as transformers, switches, capacitors, and motors.
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Why is zinc oxide used as the core material in this arrester?
Zinc oxide resistor sheets exhibit outstanding nonlinear volt-ampere characteristics. Under normal voltage, they carry only microampere-level currents, causing no interference. When overvoltage occurs, they instantly conduct thousands of amperes to clamp and dissipate the excess energy, making them ideal for reliable overvoltage protection.
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What types of overvoltage can this arrester protect against?
The 10 kV zinc oxide arrester is designed to handle three main types of overvoltage: atmospheric overvoltage caused by lightning strikes, operating overvoltage generated during switching operations, and power frequency transient overvoltage resulting from system operational anomalies.
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In which industries and applications is this arrester commonly used?
This arrester is widely used across power systems (substations, distribution networks, transmission lines), railway electrification systems, communication systems, industrial and mining enterprises, and high-rise buildings — any environment operating a 10 kV electrical system that requires overvoltage protection.
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Does the arrester affect normal electrical equipment operation?
No. Under normal operating conditions, the arrester maintains a microampere-level current, which is negligibly small and causes no interference to connected electrical equipment. It only activates and conducts high current when an overvoltage event is detected.
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How does the model 17/50 designation relate to the arrester's specifications?
The model designation 17/50 refers to key electrical parameters of the arrester — specifically its continuous operating voltage and nominal discharge current ratings — which define its suitability for 10 kV system applications and determine its protective performance levels within insulation coordination schemes.
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