versión On-line ISSN 0718-0764
ORDUNA, Iván F; APONTE, Guillermo y ECHEVERRY, Diego F. Reactive Parallel Compensation During a Withstand Short-circuit Test in Distribution Transformers . Inf. tecnol. [online]. 2012, vol.23, n.5, pp.47-56. ISSN 0718-0764. http://dx.doi.org/10.4067/S0718-07642012000500006.
This article presents a strategy for using parallel reactive compensation with capacitors to increase the capacity of the short circuit test field at the Universidad del Valle. Transformers are key elements to maintain the electrical supply service. For that reason they must have an adequate capacity to withstand the mechanical, thermal and electrical stresses that occur during a short circuit. The High Voltage testing laboratory of the Universidad del Valle ( Cali, Colombia) , carries out short circuit tests for single phase distribution transformers up to 100kVA and for three phase transformers up to 300kVA . The short circuit withstand test at the laboratory is limited by the distribution network current capacity and the test can only be done at a fixed voltage , defined by the electrical network. The results show that parallel reactive compensation is a good alternative to reduce capacity requirements in short circuit tests.
Palabras clave : transformers; short-circuit; reactive compensation; capacitors; testing laboratory.