Sui Southern Gas Company Remotely Monitors Critical Installations

 


Challenge

Sui Southern Gas Company (SSGC), founded in 1954, is the oldest gas distribution company in Pakistan. SSGC’s transmission system comprises over 3,220 KM of high pressure pipeline ranging from 12-24” in diameter, with distribution activities covering over 1,200 towns. An average of about 388,828 million cubic feet of gas was sold in 2009-2010 to over 2.2 million industrial, commercial and domestic consumers in these regions through a distribution network of over 37,000 KM.

To serve its broad client base SSGC has an extensive pipeline network deployed over vast stretches of land spanning both urban and remote areas.The company’s main priority is to deliver natural gas with no adverse affects on the public, its customers, employees, or the environment, and its high environmental safety and performance standards aim to meet or exceed all requirements set by the industry.

SSGC was relying on a manual data acquisition (DAQ) model that required engineers to travel from site to site to visually gather gas levels, which they documented in logs. This manual effort posed many challenges to SSGC’s purchase, distribution, and billing processes, as well as to the company’s bottom line.

Solution

In order to save time and money, and increase safety levels for both employees and customers, SSGC realized it needed a DAQ management solution that would allow them to remotely extract readings from dispersed sites and transmission hubs in real-time.

SSGC implemented a wireless DAQ solution from Sierra Wireless partner Mazik Global. The solution features the Sierra Wireless Raven XT, a rugged, intelligent gateway specifically designed to handle complex mobile data and remote asset management applications for utility management.

The 2G/3G coverage was critical for a deployment in Pakistan, as the country was in the process of upgrading its networks to 3G capabilities. Offering a rugged design, Class I Div 2 compliance, and a vast library of telemetry protocols, the Raven XT is an ideal solution for energy management applications. Its sleek, compact form factor allows for integration within existing infrastructure and enclosures. The serial interface is compatible with legacy equipment, while a USB port increases flexibility and eases troubleshooting.

In addition to the Raven XT, the DAQ solution is also equipped with a solar panel for power, battery, intelligent charge controller, and an IP66 Enclosure. The system provides real-time data from each install location, covering over 42 parameters, and successfully interfaces with various models of EVC, FC, and GC units. Customised mobile device management software that comes standard the Raven XT provides all necessary data monitoring and analysis tools required for troubleshooting and reporting features such as solar and battery voltage and enclosure temperature.

All remote data is now communicated to a main server using GPRS/GSM, and over-the-air configuration allows pre-defined access authorisation to users for full data security. SSGC can now pull hourly sales and purchase reports, providing deep insight and actionable business information to the company.

“Through this system, the gas consumption—including various parameters of industrial customer meter stations located throughout the franchise area of Sui Southern Gas Company Limited—can be monitored,” explained the general manager of Sui Southern Gas Company’s Measurement Department.

* Case Study courtesy of Sierra Wireless



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