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10 kV Zinc Oxide Surge Arrester from China Suppliers – Quality Protection for Electrical Equipment from Factory
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 PerformanceThe 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 OperationUnder 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 ResponseIt 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 EffectIt 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 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
Q1
What is the primary function of the 10 kV zinc oxide arrester (model 17/50)?
The primary function is to protect electrical equipment from overvoltage damage. It mitigates risks caused by atmospheric overvoltage (such as lightning strikes), operating overvoltage, and power frequency transient overvoltage, ensuring the safe and stable operation of power systems, railway electrification systems, and communication networks.
Q2
What makes zinc oxide resistor sheets the preferred core material for this arrester?
Zinc oxide resistor sheets possess outstanding nonlinear volt-ampere characteristics. This means they maintain a very high resistance under normal operating voltage (allowing only microampere-level current), but switch to extremely low resistance during overvoltage events, enabling rapid current conduction and energy dissipation — making them ideal for precise overvoltage protection.
Q3
How quickly does the arrester respond to an overvoltage event?
The arrester responds almost instantaneously to overvoltage. Once triggered, the current surges to thousands of amperes within microseconds, enabling rapid conduction and timely dissipation of the overvoltage energy before it can damage connected electrical equipment.
Q4
In which electrical systems can the 10 kV zinc oxide arrester be installed?
It is suitable for a wide range of systems including power systems (substations, distribution networks, transmission lines), railway electrification systems (power supply lines and locomotives), communication systems (power supply and signal transmission equipment), as well as industrial and mining enterprises and high-rise buildings with 10 kV electrical infrastructure.
Q5
Does the arrester affect the normal operation of connected electrical equipment?
No. Under normal operating conditions, the arrester maintains its current at the microampere level, which is negligibly small and causes no interference with the normal and efficient operation of any connected electrical equipment such as transformers, switches, capacitors, or motors.
Q6
What types of overvoltage can the 10 kV zinc oxide arrester protect against?
The arrester is designed to handle three main types of overvoltage: (1) Atmospheric overvoltage — caused by lightning strikes; (2) Operating overvoltage — generated during switching operations within the power system; and (3) Power frequency transient overvoltage — resulting from abnormal operational conditions or faults within the power system.
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