Description

Surge Arresters for Transformer Neutral Points are specialized protective devices designed to safeguard the neutral points of transformers in power systems. Installed at the neutral connection of transformers, they mitigate transient overvoltages that may occur at the neutral point due to lightning strikes, system faults (such as single-phase grounding faults), or switching operations. By rapidly conducting surge currents to the ground and clamping the voltage to a safe level, these arresters prevent damage to the transformer's insulation, core, and windings, ensuring the transformer's stable operation and extending its service life.

Features

• Neutral Point-Specific Design: Tailored to the electrical characteristics of transformer neutral points, with voltage and current ratings matching the neutral point's operating conditions, ensuring precise protection without affecting the transformer's normal operation.

• Effective Overvoltage Suppression: Equipped with high-performance metal oxide varistors (MOVs) that respond quickly to transient overvoltages at the neutral point, limiting voltage spikes to levels within the transformer's insulation tolerance.

• Resistance to DC Bias Impact: Capable of withstanding DC bias currents that may occur in the neutral point due to system imbalances, avoiding performance degradation or damage caused by long-term DC stress.

• Compact and Easy Installation: Adopt a compact structure suitable for installation in transformer substations with limited space, featuring flexible mounting options to adapt to different transformer neutral connection layouts.

• Durable and Reliable: Housed in materials like composite silicone rubber or porcelain, with strong resistance to moisture, pollution, and temperature variations, ensuring stable operation in harsh outdoor or indoor environments.

• Low Leakage Current: Maintain minimal leakage current during normal operation, reducing energy loss and avoiding unnecessary heating, which helps maintain the transformer's operational efficiency.

• Compliance with Standards: Meet international standards such as IEC and IEEE, undergoing rigorous testing to ensure compatibility with various transformer types and reliable performance in different power system configurations.

• Coordination with System Protection: Designed to coordinate with other protection devices in the power system, such as circuit breakers and fuses, forming a comprehensive protection network to enhance the overall safety of the transformer and the system.