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All Journal Jurnal SPEKTRUM Advances in Tropical Biodiversity and Environmental Sciences
I Wayan Wijana
Fakultas Peternakan, Universitas Udayana
Agriculture, Biological Sciences & Forestry Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Veterinary

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ANALISIS KOORDINASI RELAY ARUS LEBIH (OCR) DAN RECLOSER PADA SISTEM EKSISTING PENYULANG BUKIT JATI Wayan Wijana; I Ketut Wijaya; I Made Mataram
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.493 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p08

Abstract

Protection systems play an important role to maintain the reliability of distribution line. Over current relay (OCR) is one of the equipments used as a protection line of 20 kV distribution. Feeder of Bukit Jati is equipped over current protection relay equipment installed in Recloser of Banda and relay in the substation feeder. Based on the data of PT. PLN (Persero) APD Bali, there are 5 time-short circuit disorders which one of them tripped the Bukit Jati feeder. Problems over current relay coordination failures can be overcome by analyzing the coordination of protection systems in the feeder of Bukit Jati. The analysis was done by recalculating the over current relay setting and create the coordination curve of the existing setting and compared it with the coordination curve setting according to the calculation result. The results of the calculation of instant recloser recycling settings obtained by 1.246 A with time multiple setting (Tms) of 0.11 while the value of the instant current setting of the feeder of 2.992 A with Tms of 0.38. Based on the simulation result using ETAP program, it is known that over current relay coordination has worked according to the protection zone when the noise occurrence behind the recloser bus did not result in a trip feeder.
Performance and Carcass Production of Balinese Ducks Given Rumen Watse Based Biosupplement Rations Gusti Ayu Mayani Kristina Dewi; I Nyoman Sutarpa Sutama; I Wayan Wijana; I Made Mudita
Advances in Tropical Biodiversity and Environmental Sciences Vol 1 No 2 (2017): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.453 KB) | DOI: 10.24843/ATBES.2017.v01.i02.p01

Abstract

A study aimed at studying the performance and production of Balinese duck carcasses that were given rations containing biosupplement-based waste of rumen content, conducted in the village of Peguyangan, Denpasar, Bali, for 3 months. Four biosupplements produced in this study were 1) BR0 = biosupplement with fermented rumen based waste without bacterial isolates, 2) BR1 = biosupplement with fermented rumen based waste with superior 1 cellulolytic bacteria inoculant (BR3.5), 3) BR2 = biosupplement with fermented rumen based waste with superior 2 cellulolytic bacterial inoculants (BR3.3), 4) BRmix = biosupplement with fermented rumen based waste with combination of superior cellulolytic bacteria 1 and 2 (BR3.5 and BR3.3), The study was carried out with Completely Randomized Sampling/CR Design with 5 treatments and 3 repetitions, in which each repetition consisted of 5 Balinese ducklings aged 2 weeks. The treatment given was to ducks given supplemented ration with BR0; BR1; BR2; BRmix, respectively for the treatment of R1; R2; R3; and R4, as well as ducks that were given basal rations without supplementation (R5). The results showed that the performance of duck that received treatment of R2 was significantly better (P<0,05) than R1, R3, R4 and R5, while the carcass butching weight and fat weight were not significantly different (P>0,05) . Based on the results obtained, it can be concluded; 1) the performance of Balinese ducks receiving ration biosupplement of R2 is better compared to R1, R3, R4 and R5; 2) Meat production/ducks carcasses to the weight of butchery, carcass production, non-carcass parts and body fats are not significantly real between all treatments.
Co-Authors Gusti Ayu Mayani Kristina Dewi I Ketut Wijaya I M. Mudita I Made Mataram I NYOMAN SUTARPA SUTAMA