Customer-specified voltage configurations
Kestvan can configure 11, 13.8, 15, 22 and 33 kV requirements around the customer’s technical specification. Confirm the complete primary/secondary ratio, capacity, frequency, insulation, losses and tests for the selected equipment. Final design and performance are recorded in the technical agreement.
Distinguish the electrical quantities
The system’s nominal voltage, the highest voltage for equipment, the transformer ratio and the specified withstand levels are different entries in a technical schedule. A 10 kV catalogue class or tap range is not, by itself, evidence that another rated voltage has been validated.
Provide these inputs for the destination
- Rated primary/secondary voltage, required tapping and frequency.
- Highest voltage for equipment, lightning/power-frequency withstand and environmental conditions.
- Vector group, earthing, fault duty and interfaces with switchgear and cables.
- Country, utility or owner specification, applicable standard editions and approval evidence.
- Required tests, loss guarantees, drawings, inspection and delivery documents.
Use the reference tables within their scope
The published 10 / 0.4 kV and 35 kV reference tables remain tied to their stated designs and temperatures. They do not automatically establish losses or dimensions at other voltages. Enquiries from the Middle East, Africa and Latin America should include the actual connection-point and utility requirements for that project.
Final ratings, configuration, performance and supply scope are defined in the project technical agreement.

Power technology