Features
The LS CAST RESIN Transformer has succeeded in combining the advantage of oil-filled and conventional dry type transformers, which are fabricated with an epoxy resin. The windings are completely embeded under vacuum conditions. This casting method makes it possible to assure void-free epoxy penetration of both the inner layer and turn to turn insulation.
Characteristics
Winding types and methods that offer the least loss were selected using magnetic field analysis, and also used in the LS Industrial System’s Power Transformer to ensure high levels of efficiency. Moreover, by selecting the optimal insulating structure through the electric field analysis of insulation between turns, sections, windings and phases, the Power Transformer's electrical stability is achieved. LSfluent analysis technology has enabled the realization of an optimal cooling system, and 3D structure strength analysis has enabled a structural design that can withstand internal mechanical power short-circuits caused by system faults, seismic conditions according to external impacts, and the impact of transportation.
LS Industrial Systems’ Power Transformer factory is equipped with the latest core processor machines,
the latest winding machines, high-capacity vacuum heat drying equipment, state-of-the-art cleaning facilities,
and has the best test room.
Environmentally safe
LS CAST RESIN Transformers will not emit oil or toxic gases into the atmosphere. Therefore, they do not pollute the environment and are strongly recommended as areplacement for askarel(PCB)-filled transformers.
Moisture proof
The complete casting of coils under vacuum prevents the penetration of moisture into the winding. Therefore, it is suitable for both storage and operation in harsh environment and is capable of being switched on immediately after such storage without pre-drying.
No partial discharge
There is no possibility of partial discharge in LS CAST RESIN Transformers. Whole core & coil is tested to guarantee the life expectancy of the insulation system. LS CAST RESIN Transformers are free of partial discharge at least up to 1.3 times of the rated voltage.