Electrical Equipment Technical Resources

Zhaolong Electric’s technical resources library features practical guides covering transformers, medium voltage switchgear, box substations and other power distribution equipment.

Explore our collection of technical articles to gain insights into power equipment selection, transportation, storage, maintenance and common operational challenges. We deliver professional electrical knowledge to support global buyers, project engineers and EPC partners.

Why does trasnsformer core rust

An engineer from Ethiopia once asked me why the transformer he purchased got rusted after being shipped to Africa...

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What happens when moisture gets inside a transformer? Causes, Risks and Prevention

Learn how moisture affects transformers, where it comes from, and how to prevent damage.

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Transformer Type Test vs. Routine Test

Type Test and Routine Test are two important parts of transformer testing, but they serve different purposes.

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