Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Frontier Energy System and Power Engineering

Linear Trend Application on the Estimated Age of Distribution Transformer Based on the Load Growth and Environmental Temperature Azhar, Fadly; Rahmawati, Yuni; Fadlika, Irham
Frontier Energy System and Power Engineering Vol 1, No 2 (2019): JULY
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (564.927 KB) | DOI: 10.17977/um049v1i2p7-12

Abstract

This research aimed to find the age loss of distribution transformer based on the load growth and ambient temperature to predict the remaining age of the transformer. This research used the remaining estimation age calculation based on load growth that was predicted using the linear trend analysis. The distribution transformer in this research was the BO043 200 kVA, installed in 2012, and was operated in Bolo Feeder, Woha District, Bima Regency. The results showed that the BO043 transformer was operating at the average ambient temperature of 28℃ with the optimum loading threshold of 92.77% from its power rating. The transformer would experience age reduction if the load given were above that value. The calculation results showed that the BO043 transformer had the estimated remaining age of 4 years from the standard 23 years with the 2019 load prediction of 83.39% and up to 115.94% load prediction in 2022.
Distance Relay Protection System Planning on Malang 150 kV Transmission Network Reconfiguration Prasetyo, Wisma; Chanif, Moh. Nuzulul; Fadlika, Irham
Frontier Energy System and Power Engineering Vol 2, No 1 (2020): JANUARY
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (815.775 KB) | DOI: 10.17977/um049v2i1p18-27

Abstract

This paper discusses the installation planning of distance relay protection systems in 150 kV Malang Raya transmission system reconfiguration. This study aims to minimize the disruption in the reconfiguration of Malang Raya transmission lines. The scenario of distance relay setting zones is divided into Pakis-Sutami substation, Sutami-Sengkaling substation, Sengkaling-Lawang substation, Lawang-Pakis substation. 3-phase fault scenarios with different fault locations according to the zone of protection. Based on the results of the simulation, Zone 1 scanned the disturbance at a distance of 27,616 km. Zone 2 scans disruption at a distance of 48.07 km. Zone 3 scans disruption at a distance of 59.29 km. With the installation of the distance relay protection system, it can be used as a reference to determine the distance or location of the disturbance.