Circuit-Breaking Switches For Excess Currents TRIZ Cases

An elastic interface lever absorbs overtravel and tolerance stackup to reduce stress on the undervoltage relay during circuit breaker reset operations.

Electronic pole with solenoids monitors currents and voltages on mechanical poles to ensure common tripping without trip bar alignment.

A multi-pole circuit breaker integrates sensors and a signal processor within a single housing to detect fault conditions across branch circuits.

A circuit interrupter uses a permanent magnet to generate a magnetic field that stretches an electric arc between separated contacts.

Replacing operator-dependent dielectric gel with a self-aligning molded plastic insulator ensures repeatable voltage resistance in circuit breakers.

Extended retaining pins secure the contact lever subassembly within a non-conductive housing, resolving insulation and assembly complexity trade-offs.

A controlled convection thermal disconnector uses cross-ventilated chambers to transfer heat from a surge protective component to a thermally responsive device.

A ground fault circuit interrupter uses a test button to initiate a sequential self-test sequence for functional verification.

Circuit breakers apply logarithmic time grading margins to isolate faults in meshed electrical power distribution networks.

A DC circuit breaker uses a parallel semiconductor switch to commutate current from a mechanical switch.

Segmented arc plates in a slot motor drive electrical arcs into an extinguishing chute, resolving the trade-off between high reliability and compact volume.

A control unit limits electric fence pulse power to prevent dangerous shocks.

A combined breaker and relay unit manages power flow in electric vehicle circuits through integrated contact mechanisms.

A modular plug-in power distribution system enables safe installation and removal of circuit breaker modules without disrupting other circuits.

Segmented auxiliary supports balance contact pressure and prevent axis twisting in multi-pole circuit breakers.

A circuit breaker bridge connector uses electromagnetic repulsion forces to separate contacts.

A switching device integrates solid state switches with mechanical contacts to achieve reliable arcless current interruption.

A plastic moving element with a rotating pin-shaped contact portion stabilizes electrical connections within low voltage switching devices.

Partial plunger actuation enables automatic self-testing of GFCI devices, verifying solenoid and circuit functionality without disrupting power.

Gas channels redirect ionized flows away from grounded enclosures, preventing ground failures and enhancing arc interruption efficiency.

A fuse assembly integrates a relay with separable contacts to interrupt current flow within power circuits.

Nested springs and sliders bias movable contact arms individually, reducing mass to improve opening velocity.

Merging single-pole switches into a double-pole unit reduces the volume required for switching devices while allowing easy expansion of backup power circuits.

Magnetic couplers transmit detection signals across electrical networks to locate intermittent faults, avoiding high voltage hazards and complex mesh errors.

Permanent magnets create a magnetic field to drive electric arcs into arc-extinguishing units, resolving DC switch reliability issues.

Ferromagnetic elements shield mobile contacts within insulating seats, reducing electrodynamic interference and mechanical stress on the rotating element.

A connecting spring with a depressed movable core contact plate section equalizes loads across curved plate sections.

A baffle in a rotor subslot directs coolant into coil ducts, reducing coil temperature while maintaining power output.

Consolidating earth leakage detection and trip circuits on one board eliminates lead wires, reducing noise vulnerability and production costs.

Microcontroller monitors operating voltages and currents between series-connected power switches to detect anomalies during the switching sequence.

Charging assembly uses a rocker arm to hold the close D-shaft in an unlatched position during initial strokes.

A carrier assembly with independent pivot members mediates between molded housing halves to enhance mounting accuracy.

A pivotable spring assembly maintains contact pressure through a clevis pin and recess.

An electronic arc fault circuit interrupter configures protection settings via a controller to detect sporadic faults, reducing device complexity and cost.

An intermediary power-off key pushes an elastic seat to separate contacts, preventing actuating plate deformation from deep button pressing.

A columnar reset switch with a visible cap prevents unsafe automatic resets by requiring manual intervention.