EVN is the largest power distribution company in Vietnam providing power supplies to the capital, Hanoi and the North of the country. In early 2017, EVN began realising a new project and went out to tender for the provision of a SCADA telemetry network to monitor and control power distribution sub stations over a large geographical area in Northern Vietnam.
After researching various technologies that could be used, it was decided that cellular routers were the most appropriate and would provide the optimal solution whilst allowing costs to remain within the budgetary constraints of the project.
The RACOM M!DGE was tested against other products and showed itself to provide the most robust solution for the network, hosting unique features such as IPsec, VPN tunneling and an ability to maintain high link integrity with end to end functionality in a stable environment.
The network is made up of one Vigor 3900 VPN concentrator in the centre with M!DGE units connected using an IPsec VPN tunnel. The network uses two types of communication. Some of the remotes communicate using RS232 serial communications and IEC 101 protocol whilst the others use IEC 104 over Ethernet and TCP/IP.
Installation and configuration was completed smoothly with minimal support from RACOM and within the time allowed for this part of the project.