understanding current overload relay： importance, function, and applications
Release time:2025-12-05 00:53:25
A Current Overload Relay is an essential electrical protection device designed to prevent damage to electrical equipment, especially motors, from the harmful effects of excessive current. Overloads occur when a machine or motor draws more current than its rated capacity, which can lead to overheating and potentially catastrophic failure. The Current Overload Relay helps in avoiding such problems by interrupting the circuit when the current exceeds the set limit, thus providing critical protection to motors and other electrical systems.
What is a Current Overload Relay?
In simple terms, a Current Overload Relay is a device used to safeguard electrical equipment against excessive current, which can cause overheating and permanent damage. It operates based on the principle of monitoring the current flowing through the system. When the current exceeds a preset threshold for a specified time, the relay triggers an action to disconnect the power supply, thereby protecting the equipment from potential harm. Overload relays are most commonly used in motor protection but can also be applied to other types of electrical equipment.
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