- Client: Song Ba Ha Hydropower Company.
- Scope of the project: Supply of materials, equipment and technical services to replace, upgrade the distance protection relay system REL670, line 273 from Song Ba Ha Power Plant to Hoa Hoi Solar Plant.
- Solution: Replace, upgrade relay REL670 version 1.1 with relay REL670 version 2.2.5.
- Implementation time: 1/2023.
Current status of relay system to protect line 273 from Song Ba Ha Power Plant – Hoa Hoi Solar Power Plant
- Relay protection system 220kV Song Ba Ha – Hoa Hoi Solar Power Plant equipped for distance protection is ABB’s REL670 relay. However, the relay belongs to version 1.1, manufactured since 2007, is no longer in production, does not meet the needs of operation as well as repair and replacement, so it needs to be improved and upgraded to the latest version 2.2. .5.
- After a long time of use, the keys are no longer sensitive, moreover, the HMI screen of the existing relay is of a small size, making it difficult for the operator to access and change parameters. install and retrieve information when something goes wrong.
- The existing relay system communicates to the DCS via IEC-103 which is the old communication protocol, while the new protection relay now communicates to the DCS via the IEC-61850 protocol.
- Configuration software for existing relays is PCM600 version 1.5 with many limitations, which cannot be installed on new generation computers with Windows 10 trelayn operating system.
- After more than 10 years of continuous operation, the electronic components in the relay are no longer working well, it is easy to fail, especially the power supply of the relay, besides the product version 1.1 of REL670 is no longer in production, so it cannot be purchased. Reserve supplies.
The solution S5T offers to solve factory problems
With an in-depth technical team and good experts, S5T company participated in the bid and was trusted by customers to choose to implement the bidding package “Supplying materials, equipment and alternative technical services, upgrade the relay system to protect the distance REL670, line 273 from Song Ba Ha Power Plant to Hoa Hoi Solar Power Plant”.
Results, evaluation after upgrading relay system REL670
- The upgraded REL670 ensures compatibility with existing factory equipment.
- Relay after upgrade is configured and tested to ensure correct operation according to the issued A3 regulation sheet.
- The relay is synchronized in real time according to the SNTP protocol.
- The relay is connected to the DCS according to the new communication protocol IEC61850.
- The large HMI screen clearly shows the SLD diagram, simulating the actual state of the 273, 274 circuit breakers; The measurement parameters of current, voltage, phase angle, power, frequency … are shown in detail to help operators easily access and view information.
- The system of 15 LEDs is arranged on 03 groups, allowing up to 45 LED signals to be configured, helping operators to collect information easily and intuitively, so that the breakdown process is quick and easy. favorable.
- Easy connection to protection relays via conventional Ethernet network cable and PCM600 software.
- Technology transfer training is carried out in detail by experts of S5T company, helping operators to be autonomous in accessing and exploiting information to get event logs and disturbance logs. when an accident occurs.
- Address: S5T Vietnam Technology and Solution Joint Stock Company.
- Lot B15, Duong Noi Resettlement Area, Duong Noi, Ha Dong, Hanoi.
- Tel: 0243 540 1858 – Fax: 0243 540 1859
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