Trafo Elettro has recently supplied nr. 1 cast resin transformer 5MVA and nr. 1 cast resin transformer 1MVA, that have been installed in a new spreader machine located in Mae Moh Mine lignite mine in Thailand.
Mae Moh Mine is the largest open-pit lignite mine in Southeast Asia. It is located 630 kilometers away from Bangkok in Lampang province in the north of Thailand. It produces and supplies lignite to Mae Moh power plants to generate electricity.
The new spreader machine with a capacity of 18,000 ton/hour is 120 meters long with a maximum height of 25 meters. It will be used to remove, convey and dump overburden.

Main Technical Data of 5MVA transformer:

Primary voltage volt: 22000 ±2×2,5%
Secondary voltage at no load volt: 725 – 725
Vector group: Dd0y11
Protection degree: IP33

Main Technical Data of 1MVA transformer:

Primary voltage volt: 22000 ±2×2,5%
Secondary voltage at no load volt: 420+n
Vector group: Dyn5
Protection degree: IP00