understanding overload protection relay： importance and applications
Release time:2025-11-08 05:59:39
Overload Protection Relay： A Critical Safety Component in Electrical Systems
An overload protection relay is a crucial device in electrical systems designed to protect electrical equipment from the harmful effects of excessive current, which could otherwise cause overheating, damage, or even fires. Overload protection is a primary safety feature in industries and homes, where electrical equipment is exposed to varying operational conditions. This article will explore the function, working principle, types, and applications of overload protection relays.
The Function of Overload Protection Relays
The main function of an overload protection relay is to monitor the current flowing through an electrical circuit or equipment. If the current exceeds a preset limit, indicating an overload condition, the relay will automatically disconnect the circuit. This helps prevent potential damage to electrical components, such as motors, transformers, and cables, which could overheat or get damaged due to sustained overcurrent.
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