Surge Arrester SA-0.2810

Surge Arrester SA-0.2810 is a voltage and current protector, it features functions such as overcurrent, overvoltage and undervoltage protection. When the current/voltage deviates from the set value, t

Features

Eliminating the need for a voltage grading system for the voltage network.
Protecting from both overvoltages and under-voltages.
Reducing the risk of equipment damage due to transient events such as lightning strikes or switching surges.
Eliminating the need for frequent inspection and maintenance, resulting in cost savings.
Metal oxide surge arresters are an effective way to protect electric networks and equipment from high-voltage surges, helping to ensure safety and reliability.

DESCRIPTION

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Application

Metal oxide surge arresters are commonly used in electrical networks and devices to protect them from high-voltage surges. The metal oxide semiconductor material in the arrester acts as a resistor, and it's designed to absorb energy from any surge of voltage or current that exceeds safe levels. This helps prevent damage to sensitive components and equipment.

Technical specification

Product name	Max allowable voltage, V	Voltage protection level, V	Nominal discharge current, kA	Maximum discharge current, kA	Short-circuit withstand capability, kA
SA-0.28/10	280	1100	10	40	4.5

Components and materials

When an overvoltage is detected, the voltage and current are diverted to the metal oxide arrester, which then discharges the energy safely. The current is redirected towards a low resistance path that dissipates it as heat. This helps protect electrical equipment from being damaged by power surges or spikes in voltage.

Metal Oxide surge arresters also protect against direct lightning strikes and other transients. They are usually found in outdoor electrical installations, such as power poles, service entrances, and substations. Metal oxide surge arresters are designed to be maintenance-free, lasting for many years with minimal servicing requirements.