Transformers Testing TRIZ Cases

A live line measurement system uses upstream and downstream sensors with GNSS time stamping to calculate transformer phase displacement and ratio errors.

A Rogowski coil installed at the neutral line measures current flow to detect open phase conditions in standby transformers.

A monitoring component receives electromagnetic signals from an active transformer to enable frequency evaluation and parameter determination.

Evaluation circuit filters transformer measurement data using humidity sensor readings to generate reliable monitoring results.

Multi-stage transfer learning trains convolutional neural networks on simulated transformer winding data to identify faults.

EMI fingerprinting identifies genuine utility devices by comparing electromagnetic interference signals against reference databases.

Segmented transport containers reduce weight and setup complexity while protecting high voltage components during on-site assembly.

A fault detection model generates a transition region in a two-dimensional feature space to separate healthy and faulty transformer states.

A monitoring system estimates remaining service life for electrical assets using dynamic load forecasts derived from measured operational data.

A GIS electronic instrument transformer test system simulates onsite electromagnetic interference using isolating switch operations.

Universal transformer testing device connects simultaneously to all three windings, eliminating manual rewiring and reducing testing duration.

Online live line method uses GNSS time stamping to calculate phase displacement and ratio errors of voltage transformers while in use.

A monitoring system estimates power transformer remaining useful life using real-time sensor signals and periodic dissolved gas analysis results.

Unified processor merges temperature, pressure, and gas data to calculate life loss and prevent power disruptions.

A multiphase analog measuring transformer detects faults by comparing secondary measured values against minimum thresholds derived from phase crosstalk.

Segmented antenna elements match resonant frequencies to detect partial discharge signals, resolving wideband limitations in existing devices.

A testing device generates electrical signals to record transformer winding parameters during tap changer actuation.

Electromagnetic induction replaces resistive sensing in a GFCI circuit, preserving input voltage range while maintaining measurement precision.

A thermally-compensated prognostic surveillance system filters ambient temperature dynamics from sensor signals to detect incipient anomalies in outdoor assets.

An electricity meter injects a modulated test signal through an auxiliary winding to detect measurement faults in the current transformer.

A transformer tap changer testing device generates test signals and records electrical measurement curves for each switching actuation.

A pipe section with a lateral valve and instrument probe enables continuous fluid property sensing.

A standby power transformer detects open-phase conditions by monitoring phase currents against a calculated reference fingerprint.

Real-time vibration and acoustic monitoring identifies OLTC gear shifts to replace blind maintenance cycles with condition-based scheduling.

Calculating fundamental vectors and DC components from dual-side currents predicts saturation before it triggers false differential protection trips.

A controller compares three-phase and neutral current signals to identify wiring errors in transformer protection systems.

A processor-based relay uses a diaphragm to amplify muted pressure signals from transformer gas spaces for rapid detection.

A sense circuit detects reverse-phased current transformers using a single-phase power source and resistor monitoring.

A control system adjusts transformer simulation inputs using measured fluid temperatures.

Current pulses excite transformer windings to measure mechanical resonant frequency, estimating clamping forces without tank opening or contamination.

A portable test device evaluates transformer behavior using an equivalent circuit diagram to determine measurement accuracy at low voltages.

An improved mathematical model estimates polarization parameters of transformer oil paper insulation using single-cycle recovery voltage data.

A monitoring circuit uses a ground wire sensor to detect interference signals alongside partial discharge detection.

An electronic trip unit detects reversed current transformer polarity and inverts the signal data.

A method estimates high voltage side parameters using low voltage measurements and sequence component transformation.

A control system uses machine learning classifiers on temperature error datasets to detect fluid leaks in electrical apparatuses.

A pivoting impulse voltage generator moves between horizontal and vertical positions within a cuboid container.

Segmented transformer defect detection apparatus minimizes signal interference by separating gas sensors from electromagnetic wave sensors.

A converter transformer insulation monitoring method extracts characteristic harmonics to calculate equivalent capacitances.

Voltage-based detection replaces costly current sensors to identify internal faults, reducing protection costs while maintaining comprehensive coverage.

Secondary sensors measure current and voltage phasors while the system approximates vector impedance to correct phase angle shifts for precise grid monitoring.

Integrating meters within transformer housings eliminates exposed conductors, reducing electricity theft risk while enabling selective load disconnection.