Himoinsa goes to Vietnam
Himoinsa has undertaken a project to improve the environmental conditions of a key infrastructure in Vietnam: the construction of the Nhieu Loc Thi Nghe wastewater treatment plant (WWTP).
Himoinsa celebrates its triumphant entry into the Vietnam ‘capital town, Ho Chi Minh City, a half-century after the North Vietnamese army and General Ho Chi Minh himself captured what was then known as Saigon.
Himoinsa is involved in the construction of the Nhieu Loc Thi Nghe wastewater treatment plant (WWTP). The treatment plant is part of a strategic alliance between Acciona and Vinci and is located in Ho Chi Minh City, which has a metropolitan area of 14 million inhabitants and is the most populous city in Vietnam.
Technical requirements
The project has addressed a series of specific technical requirements to ensure critical power supply in the event of an outage on the main grid. This has involved installing medium-voltage (6.6 kV) and low-voltage (380 V) diesel generator sets to ensure a reliable and continuous response capacity adapted to the system’s load conditions.
The scope of the installation has included both the supply and installation of seven generator sets: five 6.6 kV, 2000 kVA medium-voltage emergency diesel generator sets, one 380 V, 1600 kVA low-voltage generator set, and one 380 V, 1250 kVA generator set.
In total, we have installed five HTW-2080 T5 (6.6 kV) units for medium voltage, one HTW-1745 T5 (380/220 V) unit, and one HTW-1260 T5 (380/220 V) unit.
Himoinsa gives continuous rated power for providing power oin Vietnam
They have been configured to provide a continuous rated power (PRP), taking into account key factors such as distribution line losses, engine start-up, and the required start-up method in each case.
They also had to be able to withstand overloads of 10% for one hour in every 12-hour period, without compromising the thermal integrity of the equipment insulation. All calculations and designs were carried out on the basis of a power factor of 0.8, in line with international standards for emergency applications in critical installations.
Each generator set has been encapsulated in a specially prepared ISO 40FT-HC sea containers to ensure a maximum sound pressure level of 75 dB(A) at 1 metre.
