Contact-Welding Prevention/Breaking TRIZ Cases
- Equipotential Switch Contacts for Short-Circuit Arc Prevention
An equipotential connecting member keeps fixed and movable switch contacts at the same potential to prevent arcing under short-circuit current.
- Equipotential Contact Switches for Short-Circuit Arc Prevention
An equipotential connecting member keeps fixed and movable contacts at the same potential, helping switches survive short-circuit currents without arc damage.
- Circuit Breaker Solenoid Driver With Multi-Peak PWM Current Control
A single PWM controller switches peak current limits to drive circuit breaker solenoids in normal and tack-welded conditions while saving space.
- Removable Current Breaking Element With Inspection Windows
Through windows in the housing allow visual inspection and tool insertion for unsoldering, eliminating the need to open the sealed enclosure.
- Circuit Breaker Trigger Device with Dual Stop Surfaces
A trigger device uses a segmented push rod to actuate the latch and block contact bounce.
- Master Disconnect Switch Contact Weld Breaker
Rotatable shaft with disengagement ramp breaks contact welds, ensuring reliable power disconnection and status feedback.
- Switching Device Wear Monitoring via Fail-Safe Memory
Decentralized switching device records operation counts in fail-safe memory to detect wear limits before failure occurs.