Impact of high PV penetration on distribution transformer insulation life
MetadataShow full item record
The reliable operation of distribution systems is critically dependent on detailed understanding of load impacts on distribution transformer insulation systems. This paper estimates the impact of rooftop photovoltaic (PV) generation on a typical 200-kVA, 22/0.415-kV distribution transformer life under different operating conditions. This transformer supplies a suburban area with a high penetration of roof top photovoltaic systems. The transformer loads and the phase distribution of the PV systems are significantly unbalanced. Oil and hot-spot temperature and remnant life of distribution transformer under different PV and balance scenarios are calculated. It is shown that PV can significantly extend the transformer life.
Showing items related by title, author, creator and subject.
Pezeshki, H.; Wolfs, Peter (2013)Integration of rooftop photovoltaics (PVs) in residential networks at moderate penetration levels is becoming a reality in many countries including Australia. Despite the technical challenges in properly accommodating PV ...
Geiles, T.; Islam, Syed (2013)As Plug-in Electric Vehicles (PEVs) take a greater share in the automobile market; their penetration levels may bring potential challenges to the electric utility especially at the distribution level. However with increasing ...
Forouhari, S.; Abu-Siada, Ahmed (2015)Power transformer is a key asset in any electrical transmission or distribution network. As a significant number of the global power transformers have reached the end of their expected designed life, utilities have given ...