GPAS for LV Ground Potential Overvoltage Attack

GPAS is a multifunctional and active lightning protection device that combines ground potential counterattack suppression and fault arc defense. It can significantly reduce the damage and impact of ground potential counterattack and arc faults on equipment when exposed to lightning hazards.

When a direct lightning strike occurs, the lightning rod or lightning protection network is connected, and strong lightning current flows into the ground grid. When high-voltage lines experience induced lightning overvoltage, lightning current flows into the ground grid through lightning arresters. When strong interference equipment such as welding machines work, the strong interference current generated by them will also flow into the ground grid. Strong grounding current can cause data loss, equipment misoperation, equipment tripping, insulation damage or burning in low-voltage power supply systems.

GPAS has higher reliability and shorter action time, which can effectively isolate high-frequency lightning currents, prevent lightning currents from invading the protective grounding network from the lightning protection grounding network, and effectively avoid the occurrence of safety production accidents such as fires and explosions.

product details

Functional features

• Selectivity: Suppress ground potential counterattack and suppress non periodic component feedback currents greater than 50Hz;

• Reliability: Adopting a dual-mode parallel structure design to achieve online thermal redundancy;

• Safety: Double bypass design, internal automatic bypass, external maintenance manual bypass function, ensuring maximum operational safety;

• Status monitoring: Equipped with running status indicator;

• Counterattack monitoring: The number of counterattacks can be directly read;

• Scope of application: 10 (6)/0.4kV distribution system.

products advantage

• GPAS has higher reliability and shorter action time;

• GPAS can effectively isolate high-frequency lightning currents;

• GPAS can effectively prevent the occurrence of safety production accidents such as fires and explosions;

• GPAS uses new materials to achieve ground potential counterattack suppression function, without any power electronic components, ensuring safety and reliability.