Claim Missing Document
Check
Articles

Found 12 Documents
Search

DEVELOPMENT OF PUSHBROOM AIRBORNE CAMERA SYSTEM USING MULTISPECTRUM LINE SCAN INDUSTRIAL CAMERA Ahmad Maryanto; Nugroho Widijatmiko; Wismu Sunarmodo; Muhammad Soleh; Rahmat Arief
International Journal of Remote Sensing and Earth Sciences Vol. 13 No. 1 (2016)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2016.v13.a2701

Abstract

One of the steps on mastery the remote sensing technology (inderaja) for satellite was the development of aerial camera prototype that could be an alternative for LAPAN light cargo aircraft mission (LAPAN Surveillance Aircraft, LSA-01). This system was expected could be operated to fulfill the emptiness or change the remote sensing data of optical satellite as the observer of vegetation covered by cloud. On this research, it was developed a prototype of pushbroom airborne camera 4-channels spectrum with very high resolution that worked on wavelength range seem near infra-red/ NIR used simple components that were available in the commercial market (commercial off-the-shelf/ COTS components). This research also developed georeference imagery software module used method of direct georeference rigorous model that had been applied on SPOT satellite. For this one, it was installed supported sensory for GPS and IMU as the writer of location coordinate and camera behavior while doing the imagery exposure or acquisition. The testing result gave confirmation that COTS components, such as industry camera LQ-200CL, and lower class GPS and IMU could be integrated became a cheaper remote sensing system, which its imagery product could be corrected systematically. The corrected data product showed images with GSD 0.4m still had positioning mistakes on average 157m (400 pixel) from the original position on GoogleEarth. On spectro-radiomatic aspect, the used camera had much higher sensitivity of NIR channel than the looked-channel so it caused bored faster. On the future, this system needed to be fixed by increasing the rate of GPS/ IMU data updates, and increased enough time resolution system so that the synchronization process and the availability supported data for completing more accurate georeference process. Besides, the sensitivity of NIR channel needed to be lower down to make it balance to the looked-channel.
Analysis of gas pressure decline SF6 in 70kV circuit breaker bay transformer 3 at Babakan substation Arif Ramdhan Achmad; Muhammad Soleh; Sugeng Suprijadi
Journal of Emerging Innovations in Engineering Vol. 1 No. 02 (2025): October 2025
Publisher : Pustaka Intelektual Sutajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65664/jeie.v1i02.8

Abstract

This study analyzes the decrease in SF₆ gas pressure in the 70 kV circuit breaker Transformer Bay 3 at Babakan Substation, which affects the reliability of the power system. SF₆ gas is used as an insulating medium due to its high dielectric strength but is susceptible to micro-leakage, which degrades equipment performance. This research employs a qualitative approach with a case study strategy based on primary data obtained from field observations, interviews, and testing documentation before and after the replacement of the T-phase pole. Gas pressure monitoring was conducted using a FLIR Gas 306 camera and digital measuring instruments, with thematic analysis employed to identify causes and evaluate repair effectiveness. The results showed that a fine leak at the lower T-phase pole was the main cause of gas pressure reduction. After pole replacement, the rate of pressure drop decreased from 0.00459 MPa/day to 0.00016 MPa/day, indicating a 35.3% increase in insulation effectiveness and a 64.6% reduction in leakage rate. Operational feasibility tests met the SPLN 52-1:1983 standard, confirming that the circuit breaker is suitable for operation. I while applying condition-based maintenance (CBM) and infrared detection proved efficient in identifying SF₆ leakage and supporting predictive maintenance practices at substations.