One of the most dangerous locations in a power distribution system with regard to incident energy is that first panelboard on the secondary of a transformer. With some thought in your design — even if ...

When designing an offline flyback power supply, integrating the IC with the other components can be overwhelming. Integrating the transformer properly is more than finding the turns-ratio to match ...

THE POWER SOURCES MANUFACTURERS ASSOCIATION (PSMA) is celebrating its twentieth anniversary by offering hardcopy reprints of a classic text on transformer design for less than a student would have ...

Custom-designed transformers got a bad reputation a decade or two ago. One of the knocks against them was a lack of repeatability. It could be tough to get replacements that worked like the originals ...

Distribution transformers must adhere to NEC and NFPA 70 standards, with specific requirements for overcurrent protection, grounding, and installation based on ...

Power-transformer designs minimize weight and cost based on three assumptions: (1) the power source is a sine wave, (2) the frequency is fixed, and (3) the voltage will not exceed a specified maximum.

This article was updated Feb. 27, 2023. It was originally published Aug. 9, 2018. When a transformer fails, especially newer ones, the cost of damages can far exceed the simple replacement cost. The ...