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10 kV Zinc Oxide Surge Arrester from China Suppliers - High-Quality Factory Protection for Electrical Equipment
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 a 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 & High-Rise 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
Q1
What is the primary function of the 10 kV Zinc Oxide Arrester (Model 17/50)?
Its primary function is to protect electrical equipment from overvoltage damage caused by lightning strikes, switching operations, and power system anomalies. It achieves this by rapidly conducting excess voltage energy to ground, thereby safeguarding transformers, switches, capacitors, motors, and other connected equipment.
Q2
What types of overvoltage can this arrester protect against?
This arrester is designed to mitigate three main types of overvoltage: atmospheric overvoltage (such as those caused by lightning strikes), operating overvoltage (generated during switching operations in the power system), and power frequency transient overvoltage (resulting from operational anomalies in the power system).
Q3
Why is zinc oxide used as the core material in this arrester?
Zinc oxide resistor sheets are used because of their outstanding nonlinear volt-ampere characteristics. Under normal operating conditions, they allow only microampere-level current to pass, causing no interference to connected equipment. However, when overvoltage occurs, they instantly conduct thousands of amperes to quickly dissipate the overvoltage energy, providing fast and reliable protection.
Q4
In which industries or applications is this arrester most commonly used?
This arrester is widely used across multiple sectors including power systems (substations, distribution networks, transmission lines), railway electrification systems (power supply lines and locomotive electrical components), communication systems (power supply and signal transmission equipment), as well as industrial and mining enterprises and high-rise buildings with 10 kV electrical systems.
Q5
How does the arrester respond during an overvoltage event?
When an overvoltage event occurs, the zinc oxide resistor sheet responds almost instantaneously. The current through the arrester surges rapidly from the normal microampere level to thousands of amperes, enabling the device to conduct and dissipate the overvoltage energy within a very short time, effectively protecting the connected electrical equipment from damage.
Q6
How does this arrester contribute to insulation coordination in electrical systems?
By clamping overvoltages to safe levels, the 10 kV Zinc Oxide Arrester plays a key role in insulation coordination — the process of matching the overvoltage protection levels with the insulation strength of electrical equipment. This ensures that the entire power system, including railway electrification and communication networks, operates within safe voltage limits, maintaining system integrity and long-term reliability.
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