Contact Testing/Inspection TRIZ Cases
- Circuit Breaker Contact Overtravel Sensing for Reliable Contact Pressure
Pressure and distance sensing track breaker overtravel and contact force, helping offset wear and spring fatigue to keep switching reliable.
- Integrated Bypass Disconnect Switch for Live Testing
A built-in bypass path lets crews test a disconnect switch without cutting power, using shared insulators and ground-level operation.
- Mechanical Actuation Travel Curve Modeling for Health Diagnosis
A simplified ODE-based travel curve model links measured motion to spring, damper, and mass changes for precise diagnosis and maintenance planning.
- Self-Diagnostic Power Switch with Integrated Safety Monitoring
Integrated sensors and a controller track switch conditions in real time and shut down operation when safety ranges are exceeded.
- Switching Contact State Detection With Clocked Current Pulses
Clocked voltage or current pulses detect switching contact state while reducing power dissipation, heat input, and contact impurity risk.
- Dropout Recloser Using Coil-Based Actuator Position Detection
Two actuator coils infer position without extra sensors, enabling fault reclosing, visible dropout isolation, and weather-tight protection.
- Vacuum Circuit Breaker Contact Wear Monitoring by Optical Displacement
An optical sensor and discriminative member track contact wear in a vacuum circuit breaker for timely maintenance and improved reliability.
- Compact Recloser With Mechanical Operation and Erosion Sensing
A mechanically operable recloser uses plunger position sensing and external status indication to detect contact erosion and simplify maintenance.
- Electrical Contactor Arc Sensing for Early Degradation Detection
Combining electric field, temperature, and light sensing reveals arc event patterns that indicate electrical contactor degradation before hazardous welds occur.
- Dropout Recloser With Bi-Stable Actuator and Visible Isolation
A bi-stable actuator and sealed housing let this recloser interrupt faults, reclose, and then drop out with a visible gap in harsh weather.
- Electromagnetic Relay Life Prediction for Replacement Timing
Calculating relay remaining life from switching cycles and coil power enables condition-based replacement and avoids premature or delayed maintenance.