Variable Inductances TRIZ Cases

A center-connected high-voltage winding cuts stray field losses in reactive power compensation while keeping dielectric strength and reducing size.

Layered main and control winding boards inside a planar core cancel AC flux, uniform DC flux, and cut leakage, noise, and footprint.

A single stepped-impedance-tap selector varies opposite-polarity auxiliary windings to simplify wiring and cut transformer weight and cost.

A secondary winding and electrical network adjust magnetic flux during tap switching to prevent core saturation, circulating currents, and arcing.

A sensor-driven movable core part changes the air gap and magnetic permeability to prevent inductor saturation and overheating at high current.

A control unit shifts transformer winding turns in no-load states to cut magnetic flux losses while preserving load-side voltage regulation.

A compact on-load tap changer places current-carrying parts outside the vacuum interrupter’s spherical contact zone to prevent arcs.

A three-state driver coupled via a capacitor transfers drive signals across an isolation transformer to enable efficient dead time transfer.

Segmenting the power supply with a voltage doubler ensures reliable motor operation under low line voltage without oversized transformers.

A hybrid on-load tap changer uses semiconductor switches to commutate current during transitions.

Parallel link actuation simplifies vacuum valve switching, enabling retrofit without modifying the oil tank structure.

Segmented ring structures connect via a switchable link to control mutual inductance coupling and reduce space occupancy.

Partial windings with varying wire diameters handle surge currents for rapid brake release while preventing coil destruction from thermal stress.

Hybrid on-load tap changer replaces mechanical arcing with solid-state commutation, reducing wear and maintenance costs.

A suspensible external on-load tap changer uses a detachable switch body lifted through the top opening for direct access.

A switching unit circulates insulating liquid through a hydraulic cooling circuit to remove heat from the switching module.

A control system reduces transformer current to enable tap changes.

Zigzag secondary windings allow odd silicon rod counts, eliminating star connection limits.

A thyristor switching module control method evaluates phase shift and current distortion before initiating commutation.

Identical control winding subgroups extend reactive power adjustment beyond sixty percent limits while maintaining permissible leakage reactance levels.

A saturable inductor integrated with rectangular busbars enables high-current electromagnetic pulse generation using low-wear semiconductor switches.

Transformer core saturation blocks energy transfer in a magnetic switch, eliminating contact impedance and power loss.

An electromechanical inductor couples electrical conduction with mechanical resonance to store energy, reducing passive component size and mass.

A current-controlled variable inductor adjusts magnetic flux to modify inductance dynamically.

A single vacuum interrupter with multiple movable contact systems replaces separate components in transformer tap changers.

A magnetic amplifier device regulates output voltage using a control coil to saturate the core.

A vacuum interrupter manages polarity switching in control transformers via a series resistor circuit.