Real-Time Remote Monitoring of Utility and Generator Power Supply at Major Power Stations at GBIACAO

Overview

Gautam Buddha International Airport Civil Aviation Office (GBIACAO), Nepal, operates several outside power stations in addition to its main power house, supplied at 11 kV through an underground network. These stations include the VOR station, glide path station, localizer station, CFR station 1, CFR station 2, sewage treatment plant station, overhead water supply tank station near the quarter area, and cargo station. For the client CAAN, GBIACAO, under reference R3026, real-time utility and generator power supply monitoring was required at five of these locations: VOR station, glide path station, localizer station, CFR station 1, and the overhead water supply tank station near the quarter area. The work was procured under the National Competitive Bidding (NCB) process and completed on 1 June 2025, with a project duration of 7 months 16 days.

Scope & Deliverables

• Survey of the existing power supply systems at GBIACAO.
• Supply and delivery of PLC modules, multifunction meters, generator controllers, Ethernet switches, 4G modems, VPN routers, optical fiber and CAT6 cabling, monitoring software, and server and display units.
• Installation of real-time monitoring systems at VOR station, glide path station, localizer station, CFR station 1, and the overhead water supply tank station near the quarters.
• Construction, cable laying, civil works, and earthing for complete commissioning.
• Integration of hardware and software into a single-line mimic diagram on HMI displays.

Outcome

The monitoring systems at the five stations were tested, commissioned, and handed over to CAAN, GBIACAO, with training delivered to operating personnel for operational readiness. The completed system provides centralized, real-time monitoring and reporting of utility and generator power supply status across the covered stations.