DEVICE FOR CURRENT PROTECTION OF ELECTRICAL INSTALLATION Russian patent published in 2017 - IPC H02H3/08 

FIELD: electricity.

SUBSTANCE: device for current protection of the electrical installation contains a reed switch installed in the magnetic field of the current-carrying bus of the electrical installation. The closing contact of the reed switch through the first resistor is connected to the relay contact of the reed switch, to the first end of the intermediate relay control winding and to the first cover of the first capacitor. The reed contact of the reed switch, the first end of the reed switch control winding and the first cover of the second capacitor are connected to the positive pole of the constant operational current source. The reed contact of the reed switch, the second end of the reed switch control winding and the second electrode of the second capacitor through the second resistor are connected to the negative pole of the constant operational current source to which the second end of the intermediate relay control winding and the second electrode of the first capacitor are connected. The closing contact of the reed switch is connected to the signal lamp. The breaker contact of the reed relay through the NO contact of the intermediate relay is connected to the circuit breaker of the electrical installation switch.

EFFECT: improving device reliability.

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