Parameter Calibration/Setting TRIZ Cases
- High-Voltage MOSFET eFuse With Resettable Current Protection
A MOSFET eFuse senses drain-source voltage to trip on faults, replace costly HV DC fuses, and reset without replacement.
- Transmission Line Relay Monitoring for Pre-Fault Break Detection
Dual high-sensitivity relay monitoring detects broken transmission lines and trips breakers before a ground fault or short circuit occurs.
- Adaptive Injection Frequency for Generator Ground-Fault Protection
Injection frequency is adjusted to track noise and grid deviations, improving generator ground-fault detection stability and reliability.
- Load Switch Integration Circuit for Reverse Stress Detection
Capacitive integration of input-output voltage difference lets a load switch detect reverse stress quickly while filtering transient false alarms.
- Contactor Trip Control with Independent Overcurrent Protection
An independent protection unit trips the contactor on overload or short circuit, keeping the loop protected even if the control unit fails.
- Arc Fault Breaker Load-Profile Switching to Reduce Nuisance Trips
Multiple selectable LUTs let an arc fault breaker match changing load profiles and cut nuisance tripping without a more complex algorithm.
- Electronic Circuit Breaker Remote Monitoring for Nuisance Trip Diagnosis
Wireless waveform monitoring and remote breaker algorithm updates cut troubleshooting time and help resolve unwanted trips.
- Solid State Circuit Breaker PWM Control for Fault Current Limiting
PWM-driven switch pulsing limits let-through current in solid state circuit breakers, reducing false trips while protecting power components.
- Line Protection Using Corrected Current After Circuit Breaker Opening
Voltage-based current correction removes choke-induced resonant current errors after breaker opening, improving line protection sensitivity.
- Forced-Discharge Resistor Selection Under Battery Heating Limits
This case uses controlled heating and temperature feedback to identify discharge resistor values that consume battery energy without triggering thermal runaway.
- Power Amplifier Bias Current Limiting for RFFE Burnout Prevention
Bias current measurement and reference-based voltage control stop RFFE overcurrent before it burns out the power amplifier.
- Portable ERMS Key for Temporary Arc Energy Reduction
A portable ERMS key switches trip units into a lower arcing energy mode for maintenance without permanent retrofits, reducing cost and risk.
- Dynamic Overcurrent Detection for Transient Current Immunity
By combining current integration with an adaptive threshold, this case cuts nuisance tripping from spikes and inrush currents.
- Virtual Metering With Dynamic Tolerance Curves for Power Quality Events
Electrical data from multiple IEDs is combined into virtual meters to map power quality events, tune alarms, and shorten recovery analysis.
- Electronic Circuit Breaker Dual-Microcomputer Tripping Control
A dual-microcomputer breaker splits instantaneous and time-limit tripping to cut processing load, memory use, and false trips during power instability.