Transformers Magazine, Vol. 8 No. 2, 2021.
Izvorni znanstveni članak
Investigating return on online DGA investments for service aged power transformer
Bhaba P. Das
; Hitachi ABB PG
Sažetak
Over the years, online dissolved gas analysis (O-DGA) has gained traction with power transformer asset managers. Many asset engineers have realized the technical benefits of the shift from traditional laboratory-based DGA to O-DGA. However, the main stumbling block in widespread O-DGA usage is convincing the commercial team members of the economic benefits gained by installing an O-DGA device. Usually, with an O-DGA device, there are different costs associated - the upfront purchase cost, usage costs over O-DGA monitor lifetime, and O-DGA maintenance costs. In this case study, an investigation is carried out on the return of investment for an O-DGA monitor for a service-aged power transformer, utilizing the principles presented in IEEE c57.143. Two monitors – a higher-priced O-DGA monitor with minor maintenance versus a lower-priced O-DGA with regular maintenance requirements are compared.
Ključne riječi
cost-benefit, monitoring systems, online DGA, return on investment
Hrčak ID:
256532
URI
Datum izdavanja:
8.4.2021.
Posjeta: 554 *