Commencement of 220kV Ninh Hoa (Van Ninh) Substation and Connecting Transmission Line project

On December 29, 2023 in Khanh Hoa province, the National Power Transmission Project Management Board (NPTPMB) organized the groundbreaking ceremony for the 220kV Ninh Hoa (Van Ninh) Substation and Connecting Transmission Line project. According to schedule, the project is expected for completion in January 2025.

The project owner is National Power Transmission Corporation (EVNNPT). NPTPMB is the project management unit. Power Engineering Consulting Joint Stock Company 4 (EVNPECC4) provides engineering and supervision services. Power Transmission Company 3 will operate the substation after completion.

The project is located in Suoi Hang village, Van Khanh commune, Van Ninh district, Khanh Hoa province. The location was approved by Khanh Hoa Provincial People’s Committee in Document No. 88/UBND-KT dated January 6, 2020.

The project will install 01 220/110/22kV transformer with capacity of 250MVA. The 220kV side uses a double-busbar scheme with bus-tie, comprising 10 bays. In this phase, equipment for 06 bays (04 outgoing feeders, 01 incoming feeder and 01 circuit breaker bay) will be installed, configuring a double-busbar scheme. 01 bus-tie bay, 01 incoming feeder and 02 outgoing feeders are reserved for the next phase.

The 110kV side uses a double-busbar scheme with bus-tie, comprising 15 bays. In this phase, equipment for 06 bays (04 outgoing feeders, 01 incoming feeder and 01 circuit breaker bay) will be installed. 06 outgoing feeders, 01 incoming feeder of 250MVA transformer, 01 bus-tie bay and 01 condenser bay are reserved for the next phase.

The 22kV side uses a block diagram with outdoor equipment to self-supply power through substation’s transformers. Control, protection, metering, communication and SCADA system: Integrated control system using computers following EVN and EVNNPT’s regulations, protection and metering devices meeting prevailing standards.

Connecting transmission lines: Building new 220kV , 4 circuits, about 250m long transmission lines to connect with existing 220kV Tuy Hoa – Nha Trang transmission lines.

The project aims to meet the load demand and ensure safe operation of 110kV substations in Northern Khanh Hoa province and Southern Phu Yen province, especially providing electricity for Van Phong Economic Zone. It helps improve reliability of electricity supply for socio-economic development in Khanh Hoa province.

The project also ensures safe operation and avoids overloading risks for 110kV lines and voltage drops in the Northern Khanh Hoa province in case of failures on related 110kV lines.

In his speech, Mr. Nguyen Quang Anh, NPTPMB’s Deputy General Director said: This is an important project to ensure stable power supply for Khanh Hoa and neighboring provinces. Hence, NPTPMB requires all contractors to strictly follow technical standards and processes, effectively manage occupational safety, health and environmental matters, and ensure construction quality.

NPTPMB proposes contractors and supervision consultant to strengthen workforce to closely coordinate with the Project Executive Board and related parties in meeting EVNNPT’s requirements on quality and progress.

Mr. Nguyen Huu Danh – Chairman of Van Khanh Commune People’s Committee highly appreciated NPTPMB’s close coordination with local authorities in recent time so that the whole political system from commune to district level promptly focused on site clearance. So far, most of project areas have been cleared and handed over to the Project Owner. Mr. Danh expected that NPTPMB would continue to pay attention to social welfare activities in the commune, environmental protection, and concentration of resources to ensure project schedule.

Representatives of the construction contractor committed to allocate suitable resources, ensure occupational safety, quality and progress in line with the investor’s set targets.