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Archive: Category «Testing and Commissioning»

Condition Monitoring of Transformers

It is possible to provide transformers with measuring devices to detect early signs of degradation in various components and provide warning to the operator in order to avoid a lengthy… Read more

May 24, 2013 | Edvard

Condition Monitoring of Transformers (on photo: distributive tranformer

Transformer Routine Dielectric (Insulation) Test

The following insulation tests are performed in order to meet the transformer insulation strength expectations. Unless otherwise requested by the customer, the following test are performed in the following order (IEC… Read more

May 23, 2013 | Edvard

Transformer Routine Dielectric (Insulation) Test

Erection Procedure for Power Transformer

This technical article deals with transformers and their installation so we restrict ourselves here to the procedures associated with their commissioning. Transformers should be inspected for internal or external damage, particularly if… Read more

May 20, 2013 | Edvard

Erection Procedure for Power Transformer

When a transformer has stomach pain and wants to…

During normal operation, transformer internal structures and windings are subjected to mechanical forces due to the magnetic forces. These forces are illustrated in Figure 1. By designing the internal structure very… Read more

May 08, 2013 | Edvard

Transformer windings forces due to the magnetic forces

Erection procedure for HV switchgear (Part 1)

Before commencing erection of HV switchgear check that all connections are tight on busbars and on main circuits as well as auxiliary circuits. Examine the insulation very carefully, because there… Read more

Apr 29, 2013 | Edvard

Erection procedure for HV switchgear

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