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.

A servo motor tap changer uses feedback signals to control angular displacement of the drive shaft.

A motor drive actuates selector contacts and switching means in an on-load tap changer without energy stores.

A distribution transformer tap changer uses a single motor drive to actuate vacuum interrupters for load switching.

Multi-phase electronic power transformer reduces size and weight by operating primary and secondary windings at higher frequencies.

A power apparatus filters PWM signals to set a reference potential and converts input power into variable high voltage output.

A flexible transformer system uses an impedance switch to adjust electrical characteristics via selectable windings.

A movable bridge element manipulates magnetic flux in a permeable core to control impedance within power distribution networks.

Merging main and resistance switches into a single vacuum tube reduces space and complexity while maintaining switching reliability.

A hollow circular plunger core and thin-walled magnetic shield reduce material usage in inductive position sensors.

Dual-winding reactors merge into shared units to reduce space requirements while maintaining compensation current capability.

An external guide device prevents contact misalignment and protects bellows, maintaining dielectric strength without increasing component size.

A screw-like adjustable inductor uses a composite core and conductive plug to vary inductance through winding shorting.

Opposed contact areas extend the current path through three-dimensional space, maintaining force balance and cooling area while reducing tap selector volume.

A single-layer antenna uses nested inductor coils to support multiple wireless charging standards.

A transformer compensation winding generates a counteracting magnetic field to neutralize unidirectional flux fractions in the core.

A self-power-acquiring controllable reactor uses a tertiary winding and rectifying-filtering unit to generate DC excitation power for the control winding.

Divided main winding parts absorb lightning voltage energy and throttle fast transients to protect semiconductor switching components.

A series current limiter uses a virtual air gap to constrain short-circuit currents without complex control systems.

A controllable local network transformer uses dual on-load tap changers to adjust voltage levels across high and low voltage sides.

A collinear on-load tap changer uses a transmission to move selector rods and a load changeover-switch rod simultaneously.

Parallel bypass branches intercept vacuum breaker transients, preventing damage to inductive elements.

Dynamic inductance adjustment reduces residual ground fault currents and harmonics in medium voltage networks.

A processor regulates OLTC transformer voltage bandwidth using estimated downstream bus values.