Phase Leak Protection Circuit for Fault Line Identification

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Solution Overview

Problem

Existing electricity protection units fail to accurately identify which phase line is causing an electric leak, leading to inefficiencies in leak detection and response.

Innovation Solution

Incorporation of a thermo-magnetic circuit breaker and an indication gadget for each phase line, which includes a switch and a circuit to isolate the leaking phase line and provide visual or auditory feedback, allowing precise identification of the leak source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a differential circuit breaker is used to detect electric leaks, then electric leak detection capability is improved, but the ability to identify which specific phase line has the leak deteriorates

Engineering Contradiction:

Improveelectric leak detection capabilityVSAvoididentification of specific phase line

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The invention divides the single differential circuit breaker into separate protection units for each phase line (Phase A, Phase B, Phase C). Each phase has its own circuit breaker and indication gadget, allowing independent detection and identification of leaks on specific phases while maintaining overall leak detection capability.

Inventive Principle:

Principle #1Segmentation

2Object-affected harmful factors

If a single differential circuit breaker cuts all phase lines upon detecting a leak, then safety is improved by stopping all power flow, but productivity deteriorates due to complete power shutdown affecting all appliances

Engineering Contradiction:

Improvesafety by stopping power flowVSAvoidpower availability to appliances

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The invention segments the power protection system into independent phase-specific circuit breakers. When a leak is detected on one phase, only that specific phase's circuit breaker trips, isolating the fault while maintaining power supply to other healthy phases and their connected appliances.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protection action is localized to the specific phase line where the leak occurs. Each phase has its own indication gadget and circuit breaker that operate independently, allowing targeted intervention only where needed rather than blanket shutdown of all phases.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12609260B2Electricity leak protection unit for each phase line

Publication Date: 2026.04.21 ROSHER ITAY

AI summary

An electricity protection unit, including for each of at least one phase line: a thermo-magnetic circuit breaker, for cutting the phase electric line upon exceeding an electric threshold thereof; and an indication gadget connected to the thermo-magnetic circuit breaker, for receiving an electric leak between a consumer and a metallic package of any electric appliance consuming electricity from the phase electric line, and for indicating the electric leak, thereby indicating which of the at least one phase line includes the electric leak.