Electric Winding Testing TRIZ Cases

Off-power tap voltage comparison detects winding short-circuits in parallel coils early, helping prevent burn-outs and fire risk.

Resistors and a capacitor balance voltage and current during stator insulation checks, improving short detection while preventing arcing and damage.

Physics-informed thermal processing filters unreliable tank-wall measurements to detect local heat loss and faults in power assets.

Standby cutoff of one electromagnet and position sensing of the movable element expose actuator failures early, reducing elevator stop-device maintenance time.

Capacitive pre-charging lets conductor segment insulation be scanned faster while maintaining reliable defect detection in electrical machine production.

Capacitive pre-charging stabilizes conductor segment insulation testing at high line speeds, cutting false defect detections in electric machine production.

A delayed test-current window separates induced voltage from resistance effects, enabling rotor-in-place diagnosis of winding and electromagnetic faults.

Comparing sequence components from separate winding currents enables fast detection, fault type distinction, and severity estimation in multi-wound motors.

Comparing sequence components from multiple winding currents helps detect PG, PP, and inter-turn faults before motor damage occurs.

Parallel winding paths use equipotential-wire current imbalance to identify turn-to-turn shorts with minimal signal processing.

Multi-stage winding resistance and core temperature measurement circuit calculates own and mutual thermal resistances to prevent overheating in transformers.

A resolver detection apparatus calculates square sums of output signals to identify system faults.

A voltage differential detector compares high and low voltage winding signals to identify interturn short circuits in transformers.

Sigma-delta A/D converters analyze temporal shifts in current signals to detect parasitic shunts without external synchronization, reducing hardware complexity.

Resonant circuit determines iron core losses through frequency and quality factor analysis, replacing complex phase shift methods with rapid industrial testing.

A method extracts fundamental and third harmonic current components to generate scaled signatures for stator inter-turn fault detection in induction machines.

A control device verifies electrical characteristics before energizing a permanently magnetisable chuck coil.

A microphone records mechanical vibrations during actuator transitions to identify operational states through signal comparison.

A solenoid coil detection method senses FET drain voltage and supply voltage to calculate a ratio for fault identification.

A method detects voltage-dependent faults in electrical winding systems by comparing measured and calculated impulse voltage waveforms.

A two-test parallel inductance method measures magnetic core loss by disconnecting the core under test from the excitation circuit.

Detects non-active detuning in antenna coils using amplitude meter testing to verify coil integrity before operation.

A fault detector calculates a difference value between normalized negative voltage and current imbalances to identify winding faults.

Magnetic field sensors integrated into the RF coil detect attachment errors to prevent measurement failures and reduce downtime during manual setup.

A transformer system determines primary voltage using secondary current sensors and processing units.

Comparing time-delayed back-EMF envelopes detects plunger movement, reducing pull-in current to hold levels during slow motion or aging.

A method adjusts induction coil turns to control electromagnetic actuator impedance using voltage and current measurements.

Circularly polarized electromagnetic waves couple to rotor winding turns, resolving insufficient measurement precision of inter-turn characteristics.