Emergency Protection Detection TRIZ Cases

Current-sensing crowbars latch across zener limiters during faults, reducing heat generation while maintaining intrinsic safety.

A surge current suppression circuit uses a comparator to control a switch and bypass resistor for managing capacitor charging currents.

Integrated power detector generates control voltage to adjust threshold, reducing leakage while maintaining fast response in standard semiconductor processes.

Transistor array isolators prevent fault propagation from QM loads to ASIL motion control components by ceasing current flow when thresholds are exceeded.

Detecting device monitors zero-sequence voltage at the low voltage side to identify transformer faults, resolving accuracy trade-offs without adding sensors.

Capacitive distinguishing device decouples transient current from high-voltage steady state to enable precise measurement and circuit interruption.

A multi-end measurement algorithm detects simultaneous faults in unbalanced three-phase distribution networks using phase current mismatches.

Segmenting the solenoid winding allows detection of open circuit conditions and maintains power interruption capability.

A time-domain traveling wave subsystem detects faults by comparing current and voltage wave representations against minimum thresholds.

Segmented diagnostic circuits isolate relay faults via periodic signaling to prevent interference during accurate failure detection.

Local traveling wave analysis determines fault direction and type, eliminating communication delays that slow protection response times.

A momentary circuit interrupter injects a transient voltage pulse to reduce DC fault current.

A protection circuit detects electrostatic discharge or electrical overstress events at power bonding pads using a detection node.

Integrated circuit controller processes conditioned current sensor signals to detect leakage across multiple frequencies.

A processing element monitors analog output circuit feedback signals to detect abnormal conditions and disable the circuit.

Bandpass filters segment current signals to detect high frequency ground faults up to 100 kHz, preventing saturation issues in aircraft electrical systems.

A reverse current inhibitor switches a variable resistance element via a sensing circuit, blocking reverse currents while minimizing power dissipation.

A leakage current detection device automatically disconnects power when internal components fail.

Segmenting protection into two fuse stages with an overvoltage limiter reduces component dimensions while maintaining reliable fault isolation.

Dynamic high-pass filtering separates fault-induced high-frequency signals from complex harmonics, preventing false tripping in protection systems.

An electronic fuse interrupts supply current to a digital isolator when junction temperature exceeds maximum ratings.

A circuit breaker uses a processor to simulate load faults for automated verification of interrupter actuation.

A testing system generates and injects traveling wave signals to evaluate intelligent electronic devices.

An electrostatic discharge measuring device uses non-volatile memory bitcells to detect and record ESD events within integrated circuits.

Intelligent fuse embeds electronic circuits to measure current and voltage, transmitting data to utility crews for rapid fault isolation.

Electronic circuit stores fault data and activates visual indicators using independent power, eliminating the need to reset the protection device.

Phased transistor shutdown prevents substrate injection and supply voltage overshoot by delaying opposite device disablement until inductive energy dissipates.

An electric leakage detecting device employs a digital filter to suppress high-frequency noise from harmonic surges, ensuring accurate ground-fault detection.

Nano grid protection device detects current magnitude and direction to resolve blind zone protection issues caused by multiple distributed power sources.

A fault current detection device uses a control circuit to monitor magnetic saturation via secondary winding voltage.

A controller with grounding probes monitors induced EMF currents flowing through an Earth ground connection point to maintain optimal stasis.

A semiconductor integrated circuit uses a replica transistor and potential regulation circuit to equalize drain potentials for accurate current mirroring.

A fuse-linked current transformer generates a trip signal via rectification to detect phase faults in electrical supply systems.

A resistor-less USB protection circuit detects parasitic impedance between connector pins to disconnect power paths.

Sensor monitoring detects MOV parameter deviations against thresholds, enabling early failure warnings and reducing fire risks.

Wire sensor probes detect leakage voltage in water bodies, triggering a GFI circuit breaker to disconnect power sources and eradicate stray currents.

A digital relay processor samples input current data concurrently with executing high-speed protection processes to output control signals.

Electronic monitoring module compares dual moving averages against voltage thresholds to isolate faults in microgrids lacking diesel generators.

A reflectometric device detects electrical defects by analyzing impedance changes in power grids.

A remote power unit uses a residual current protection circuit to detect faults on voltage rails.

Digital integration algorithms replace analog hardware in a protection relay, resolving the trade-off between measurement precision and response time.

Third harmonic voltage ratio analysis blocks false alarms from circulating currents in multi-generator systems while ensuring 100% stator winding coverage.

A low-power circuit uses a voltage detector and supply switching to generate local gate control voltages for pass-gates.

A power conditioning apparatus generates amplitude notches in input waveforms to protect connected loads from anomalous electricity.

A protection circuit merges overvoltage and undervoltage detection into a single comparator using a programmable reference voltage source.

A conversion module interprets electro-mechanical relay signals to enable automatic outage restoration without hardware upgrades.

Merging thyristor arms and diode arms into a ring structure reduces power electronic switch counts while ensuring bidirectional fault interruption.

Periodic signal injection verifies DC blocking and spark gap components, ensuring reliability against geomagnetic currents.

Sequential isolation of individual battery modules identifies ground faults without extensive current transformers, preventing thermal runaway.

A thermally self-resetting fuse connects in series with a transistor controlled by a monitoring circuit to block excessive current flow.