Hovol Power › Products › Transformer Selection Guide
Start with where the transformer operates in the system. Then review oil-immersed, dry-type and new-energy-dedicated configurations, followed by the appropriate performance series and project configuration.
For local utility, industrial, commercial and building distribution. Start with the installation environment and insulation system, then compare performance series only within a like-for-like voltage and capacity range.
Three-phase distribution transformer configurations for outdoor and utility-adjacent applications. Conservator-type and hermetically sealed constructions are offered as separate product families.
Resin-cast dry-type configurations for indoor distribution and projects where an oil-free construction is required. Enclosure, cooling and insulation class are selected for the site.
6/10kV and 35kV oil-immersed and dry-type configurations for solar, wind, storage, collector and grid-connection applications.
S-series labels help compare loss performance only after construction, voltage class and capacity are aligned. They do not replace a final loss schedule or project technical specification.
Compare S13, S20, S22 or other applicable performance series only for the same transformer construction, voltage class, capacity and standard version. The no-load and load-loss values in a quotation are the governing figures.
Oil-immersed and cast-resin dry-type designs answer different installation needs. New-energy-dedicated configurations add the project operating profile, grid arrangement and documentation requirements. A higher series number is not a substitute for selecting the right construction.
For substations, large facilities and higher-voltage project nodes. S18, S20 and S22 series are reviewed alongside rated voltage, capacity, cooling method, tap-changing arrangement, connection group and transport constraints.
View 35kV S18 / S20 / S22Solar, wind, storage and grid-connection projects are not a separate transformer construction. For 6/10kV collector and grid-connection applications, we review oil-immersed and dry-type configurations against the grid arrangement, load profile, installation environment, harmonic requirements and required documentation.
The downloadable selection guides help with early comparison. Once the equipment configuration and manufacturing source are confirmed, the final document pack is reviewed against the approved technical specification.
Send the destination country, system voltage, capacity or load, installation conditions and required documentation. We will return a suitable product-family shortlist within one business day.
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