20 kV Oil-Immersed Distribution Transformer

Overview: A 20 kV oil-immersed distribution transformer connects a specified medium-voltage supply to a lower-voltage distribution system. Its electrical design, insulation level and accessories need to follow the actual network and the purchaser's specification.

Where this configuration is considered

This voltage class is considered for regional distribution systems, industrial sites and renewable energy balance-of-plant networks that use a 20 kV class connection. Outdoor placement, maintenance access and local environmental rules affect the package.

Information to define before quotation

Confirm the nominal and maximum system voltage, rated capacity, LV voltage, frequency, phase arrangement, tap positions and required short-circuit performance. State loss targets, cooling method, temperature-rise criteria and any protection or monitoring accessories.

International standards to review

Reference standards may include IEC 60076-1:2011. The applicable editions, clauses, conformity evidence and test scope must be agreed for the final design and destination market. This page does not claim certification or guaranteed compliance for an unspecified product.

A useful question for the technical brief

Which grid operator or project specification defines the 20 kV connection and its insulation requirements?

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