Автоматизація вимкнення потужних приладів

Overview

The video explains how to automatically disconnect high-power appliances, such as boilers and heaters, when a home switches to backup power. This helps prevent excessive battery drain or inverter overload. It presents two setups, depending on whether the transfer to backup power is immediate or delayed.

Immediate Transfer

This setup assumes the Wi-Fi router remains powered during the transfer, keeping smart devices reachable.

• Wi-Fi circuit breakers switch off dedicated appliance circuits. The breakers shown require a neutral connection to power their electronics, but switch only the phase.
• A Wi-Fi mini-relay, powered from the backup line, acts as the automation trigger. It detects a change in the dry contacts of a contactor connected to the utility supply.
• In the Smart Life app, a change in the mini-relay’s state triggers scenarios that switch the Wi-Fi breakers off when utility power disappears and back on when it returns. Setup requires a 2.4 GHz Wi-Fi network.
• If a circuit also supplies equipment that must stay on, a Wi-Fi socket can control an individual appliance instead. The presenter estimates that the example socket, rated at 20 Chinese amps, should be limited to about 2.2 kW.

Delayed Transfer

If the router loses power during changeover, smart devices may not reconnect until backup power is already active. To account for this, the presenter recommends configuring the breakers, sockets, and mini-relay to remain off when power is restored. They then wait for an automation command rather than turning on automatically.

In this setup, the mini-relay connects to the utility supply ahead of the voltage-delay relay and uses the AVR’s dry contacts to detect the change between utility and backup power. This allows the mini-relay to reconnect and issue the appropriate command as the system switches.

The video says this approach can also work without a separate voltage-delay relay, though the presenter describes that device as useful for voltage protection and delayed reconnection.

Other Features and Examples

• Both setups allow manual control through the app or a device button—for example, to temporarily run an air conditioner or finish a washing-machine cycle.
• Smart breakers and sockets with built-in power meters can track electricity consumption.
• The mini-relay can operate on 12 V or 24 V DC, as well as AC.
• The Tuya/Smart Life ecosystem can be expanded with smoke, gas, water-leak, and door/window sensors, as well as actuators for water or gas shutoff valves.

Guides and Demonstrations

The video covers:

• Practical walkthroughs of two automation designs: instant and delayed backup-power transfer.
• Pairing devices in Smart Life and creating automation scenarios.
• Examples using Wi-Fi breakers, sockets, a mini-relay, and a contactor.

Main speaker/source: The channel host, Eugene (Юджин), presenting designs he says he tested in practice.