Supply · Laos
Power Transformers in Laos
1 – 20 MVA. Manufactured in India to IS and IEC standards and shipped to Laos: Ex Factory or FOB Nhava Sheva; CIF Laem Chabang on request.
Power transformer under assembly
Logistics and network
Shipping to Laos.
Consignments for Laos move Sea from Nhava Sheva to Laem Chabang (Thailand), then road via Nong Khai to Vientiane; or via Da Nang (Vietnam) for the south. Typical transit is 12 to 18 days to port, 3 to 6 days road; discharge at Laem Chabang (Thailand) or Da Nang (Vietnam), then road. We quote Ex Factory or FOB Nhava Sheva; CIF Laem Chabang on request, with payment by LC at sight or advance, USD.
The grid runs at 50 Hz with 400/230 V low-voltage supply and 22 kV distribution as the national standard, with 35 kV in some provinces and 12.7 kV single-wire rural lines; 115 kV transmission. Distribution is operated by Electricite du Laos (EDL) and EDL-Transmission, regulated by Ministry of Energy and Mines. Import conformity: EDL technical specifications and type-test certificates; IEC standards.
The power transformer line closed the last gap in the chain. Between distribution and power class we now cover 16 kVA right through to 20 MVA — a span very few regional manufacturers hold on a single site.
The standard substation build is 33/11 kV, Dyn11, ONAN, with an off-circuit tap changer at +5% to −10%. Where the network needs voltage regulation under load we fit an on-load tap changer at +5% to −15%, and where the load profile justifies forced cooling we supply ONAF with a rated output at each cooling stage.
| Parameter | Specification |
|---|---|
| Rated power | 1 MVA to 20 MVA |
| Typical ratings | 1 · 1.6 · 2 · 2.5 · 3.15 · 5 · 6.3 · 8 · 10 · 12.5 · 16 · 20 MVA |
| Voltage class | 33 / 11 kV; highest system voltage 36 kV |
| Phases | Three-phase |
| Type | Oil-immersed, outdoor, core type — plain or corrugated tank; dry type to order |
| Frequency | 50 Hz standard; 60 Hz for export |
Specifying
What changes for Laos.
- Climate and site: Tropical monsoon, 40 °C with high humidity; mountainous north.
- Built to IEC 60076 for 50 Hz, with insulation levels for the 22 kV distribution as the national standard, with 35 kV in some provinces and 12.7 kV single-wire rural lines and 400/230 V secondaries; temperature-rise limits and cooling sized for the stated ambient and altitude.
- Fittings, bushings and tap-changer ranges follow the utility specification (Electricite du Laos (EDL) and EDL-Transmission); type-test certificates from CPRI or ERDA accompany the offer.
- Documentation: commercial invoice, packing list, certificate of origin, test certificates and the import conformity certificate where Laos requires one.
Questions
Frequently asked.
How long does delivery of Power Transformers to Laos take?
What documents and certificates come with a consignment to Laos?
Which standard and voltage class do you build to for Laos?
Send us your Power Transformers schedule for Laos.
Ratings, quantities, the specification you are buying against and the delivery point. We return a quotation with a firm delivery programme.