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PESTECH’s Cambodia Substation and Transmission System Project Bolsters Region’s Electricity

PESTECH’s Cambodia Substation and Transmission System Project Bolsters Region’s Electricity
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PESTECH’s Cambodia Substation and Transmission System Project Bolsters Region’s Electricity - 1

CASE STUDY Project Summary Organization PESTECH International Berhad Solution Utilities Transmission and Distribution Location Kratie and Kampong Cham, Cambodia Project Objectives • To design and construct a new Kratie substation, update the switchyard in the Kampong Cham substation, and erect a 125-kilometer, 230-kilovolt duplex ACSR bittern transmission line that connects both. • To increase electrical power generation to this region of Cambodia to further develop buildings and highways and cater to increased tourism in nearby cities. Products Used Bentley Substation, Navigator, Navigator Mobile, MicroStation, ProjectWise PESTECH's Cambodia Substation and Transmission System Project Bolsters Region's Electricity Bentley Substation Saved User Time and Money Designing for a High-voltage System in a Harsh Environment Fast Facts • PESTECH was contracted to design, supply, deliver, erect, and commission the 230-kilovolt Kratie and Kampong Cham substation and transmission system in Cambodia. • 3D visualization helped PESTECH overcome site and transportation challenges. • PESTECH was awarded a 25-year contract to operate and maintain the power transmission system. Schematic drawings were completed in less than a week in Bentley Substation, rather than two to three weeks using previous methods. Automatic generation with Bentley technology created cable schedules for the entire project in one hour and terminal function diagrams in seconds,rather than three days. Bentley Substation streamlined engineering design for a 70 percent time savings. Substations and Transmission Line A new network in Cambodia was designed to meet the power needs of an area experiencing development and urbanization. Diamond Power Limited awarded a contract to PESTECH International Berhad to design, supply, deliver, erect, and commission the 230-kilovolt Kratie and Kampong Cham Substation and Transmission System in Cambodia. An objective of the custom-designed high voltage (HV) and extra high voltage (EHV) system is to prolong the life and reliability of the transmission and distribution assets. Kratie is a province located in northeastern Cambodia and Kampong Cham is the third-largest city in the country, situated about 57 miles from Kratie. Both areas are not tourist destinations, but backpackers pass through Kampong Cham during the high season seeking accommodations, as it is a transit point between Siem Reap and Phnom Penh, both of which are popular tourist spots. The new Kratie 230/22-kilovolt substation will serve as a major collection center of electricity power from additional mini-hydropower plants and will be connected to the national power grid of Cambodia. The 125-kilometer 230-kilovolt duplex ACSR bittern transmission line will connect the new Kratie Substation to an updated Kampong Cham Substation. This line will transfer 700 megawatts of electrical power from Sesan hydropower plant, which is nearing completion in the upper Mekong area, to the Kratie and Kampong Cham regions. Power from the plant will also be transmitted through the Kampong Cham-Kratie transmission line to Cambodia's capital, Phnom Penh. Comprehensive Engineering Design by PESTECH Established in 1991, PESTECH International Berhad is an electrical trading company in Malaysia that specializes in creating electrical power facilities in developing countries and has a market capitalization of over MYR 1 billion. The company has evolved from delivering power transmission infrastructure to building and operating transmission assets, embedding system software and product development, and, most recently, power generation and rail electrification. PESTECH was contracted to do the transmission portion of the project and the primary and secondary design of the substation system for the USD 92.2 million project. PESTECH created a conceptual design of the substation systems and assembled, installed, tested, and commissioned the 230-kilovolt switchyard within the existing Kampong Cham Substation, a new Kratie 230/22-kilovolt substation, and the interconnecting 230-kilovolt duplex ACSR bittern transmission line that connects the Kampong Cham Substation to the Kratie Substation. The primary design included designing the substation layout and the secondary design included the control and relay panel protection panels. Advancing Past Manual Methods Previously, the engineering team designed and manually updated 2D hand-made drawings, conducted manual component calculation, and used AutoCAD. This methodology was inconsistent, time consuming, labor intensive, and prone to human error. Additionally, the manual method created a divide between the electrical and physical design. Drawings and design deliverables were dispersed among all stakeholders, so information sharing was disorganized and inefficient. Often, referencing outdated files impacted construction, necessitating expensive and time-consuming rework. PESTECH's previous schematic diagram also did not incorporate intelligent functions, such as clash detections, lightning protection design simulation, and automated functions for drawings and report generation. Visualization of the 3D substation design was essential for preparing work before and during construction, and the use of ProjectWise was integral for collaboration across departments, both on and off site. Bentley Substation and Navigator were vital in ensuring project success, in spite of the many situational challenges imposed on the project because of the isolated location. 2D Electrical and 3D Physical Designs PESTECH engineers used Bentley Substation for the 3D physical design and 2D electrical design. PESTECH's engineering team created a systematic database and catalog. It took the team about one month to put together a full set

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PESTECH’s Cambodia Substation and Transmission System Project Bolsters Region’s Electricity - 2

"To achieve high standards of engineering works, PESTECH has implemented Bentley Substation, MicroStation, ProjectWise, and Navigator for their substation, transmission, and distribution projects." - Direshkumar Padmanathan, Project Engineer, PESTECH International Berhad Find out about Bentley at: www.bentley.com Contact Bentley 1-800-BENTLEY (1-800-236-8539) Outside the US +1 610-458-5000 Global Office Listings www.bentley.com/contact of libraries that consisted of hundreds of parts. After the database was fully comprehensive, the design drawings used a pick and drop method for the...

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