Network Moniroting devices

- Grid monitoring devices include overhead line fault circuit indicators and underground fault circuit indicators, supporting the rapid identification of faults and incidents on the power grid, reducing power outage time, and contributing to improved power supply service quality. These devices can provide local indication (flags, LED signals, etc.) or combine this with remote indication via mobile communication networks (4G/5G).

- In Vietnam, remote indicator devices connect to the power company's (EVN) control centers using the IEC 60870-5-104 protocol.

- Feeder Monitor (FM) devices provide information on current, voltage, and frequency values ​​of the power grid, or information on outgoing line faults.