Blog

Understand tap changer contact wear, transition resistance, arcing, oil condition, motor drive, timing, diagnostics, and maintenance for power transformers.

Learn the difference between incremental and large-signal inductance, how DC bias and ripple change measurements, and which value matters for converter design.

Learn how chassis bonding, Y capacitors, common-mode chokes, cable placement, parasitic capacitance, and PCB layout determine real EMI filter performance.

Understand transformer insulation system thermal class, material compatibility, accelerated aging, diagnostic tests, hot-spot limits, and manufacturing controls.

Learn how bandwidth, droop, saturation, burden resistance, insulation, common-mode dv/dt, layout, and reset affect current transformers in SiC and GaN converters.

Understand how nonlinear loads increase transformer winding, eddy, stray, and neutral losses, how K-factor is calculated, and when derating or a harmonic-rated transformer is needed.

Learn how voltage levels, modulation, switching states, ripple spectrum, core loss, common-mode voltage, and fault current affect multilevel inverter output inductors.

Compare nanocrystalline and ferrite common-mode choke cores by permeability, saturation, impedance, loss, temperature, DC imbalance, package, insulation, and cost.

See how transformer manufacturers inspect magnet wire conductor size, enamel build, pinholes, adhesion, elongation, resistance, solderability, packaging, and traceability.

Learn how winding interleaving changes leakage inductance, AC copper loss, interwinding capacitance, common-mode current, insulation, and manufacturability.