Which mechanism causes increased eddy current losses when power transformer operates at elevated frequency without capacitance compensation?

💡 Explanation

When a power transformer operates at high frequency without capacitance compensation, the skin effect becomes more pronounced because the alternating magnetic field induces opposing eddy currents that concentrate the current flow near the conductor's surface, boosting resistive losses. Therefore skin effect is the primary cause, rather than hysteresis, leakage flux, or dielectric breakdown, which are frequency independent.

• Which risk increases when a polymerase chain reaction (PCR) thermocycler's annealing temperature is below the optimum for primer binding?
• Which outcome primarily occurs when palladium absorbs hydrogen?
• Which risk increases when vertically polarized light encounters roadway reflection?
• Which outcome occurs when exceeding critical current in NbTi?
• Which limit exists when designing a Carnot heat engine operating between fixed high and low temperature reservoirs?
• Which outcome inhibits iron-56 formation during silicon burning?