How often should a transformer be maintained and what should be checked first?

Routine inspection frequency depends on environment and load severity, but most projects use monthly visual checks, quarterly operational checks, and annual comprehensive maintenance. For oil-immersed units, priority …

How do I choose the right transformer capacity for my project?

Start from measured or estimated load profile instead of summing all nameplate loads directly. Distinguish base load, normal operating load, and short-duration peak load to avoid oversized or undersized selection. A …

What is the difference between an oil-immersed transformer and a dry-type transformer?

Oil-immersed transformers use insulating oil for heat dissipation and insulation, so they usually have stronger overload capability and are often used outdoors, in substations, and in higher-capacity distribution …