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2016-05-23
What is "Over Load Protection"?(Switching Power Supply Adapter)

What is "Over Load Protection"?


Most often, overload protection is used in reference to electrical systems. It is a safety mechanism intended to prevent or minimize damage that can occur from electrical malfunctions. Generally, if a problem occurs within an electrical circuit, the current of electricity will be automatically cut off by a protection system. Aside from electrical systems, another type of overload protection, sometimes called thermal protection, can be used to safeguard motor systems and similar devices.

Many people have had the experience of tripping a circuit breaker or blowing a fuse in their houses. This occurs because of overload protection. Most electrical systems are designed with a fail-safe mechanism, or overload relay, that senses when something has gone wrong within the circuitry and automatically cuts off electrical power in order to prevent fire or other problems from occurring.

An electrical circuit is designed to carry a certain amount of energy, or voltage. The flow of energy, called a current, should travel through the path from one point to the other unimpeded. If that current is interrupted, it causes what is commonly known as a short circuit. If an electrical system is designed properly, overload protection kicks in to stop the flow of energy until the source of the interruption is removed.

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