[INQ. NO. 2506M07] Mold transformers, which have been supplied to the market for over 20 years, have a similar performance to existing oil-immersed transformers, but are less noisy, space-saving, and easier to maintain. So they are usually used in places that require high reliability, such as power plants and factories, or places where installation conditions are restricted, or where environmental resistance is required.
Sungjin General Electric introduced its vacuum casting mold transformers as its main product at a recent local exhibition in Korea.
Sungjin General Electric’s mold transformers use epoxy resin, so there is no risk of ignition or explosion in the event of a fire caused by an arc, and they are self-extinguishing. In addition, since they have excellent insulation performance, external moisture does not penetrate, even during long-term storage, so separate drying work is unnecessary.

In particular, they are manufactured based on a molding method and design that can sufficiently withstand temperature changes and overloads, making them suitable for equipment with large short-term overload capability and large load fluctuations. The coil is molded in a vacuum using epoxy resin with excellent electrical and mechanical strength, making it resistant to short-circuit accidents.
“In the case of oil-immersed transformers, the insulation rate must be checked and replaced, but this process is unnecessary for mold transformers, so among transformers used indoors, mold transformers are preferred. We have been manufacturing mold transformers for over 20 years, and we are currently selling over 200 units per month,” explained a spokesperson for the company, adding, “Our mold transformers can be customized for voltage and capacity according to customer requests. Based on this technological prowess, they are being supplied to government offices, etc., and their technology is being recognized.”

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