What is protection selectivity?

What is protection selectivity?

What is the selectivity of protection of the electrical network. The main functions and types of selectivity of protection in electrical installations. An example of a selectivity map.

SonoFF Wi-Fi Relay Overview

SonoFF Wi-Fi Relay Overview

Sonoff Wi-Fi relay is designed to turn on and off electrical appliances according to a given program or via the Internet. How to connect a Wi-Fi relay and how it works is described in the article.

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