SUNGJIN TRANSFORMER

Energy-saving oil-immersed transformer with more than 75 percent reduction of no-load loss using amorphous metal instead of silicone sheet.

No-load loss reduction 

Minimal no-load loss by amorphous structure and super-laminate metal pin materials.

Economic efficiency

Operation and maintenance cost decrease and life extension expectation of transformer by the loss reductio.

Harmonic wave reduction

High Efficiency and compactification by excellent magnetic characteristics in the high frequency and harmonic wave band.

A dry-type transformer encapsulated with epoxy resin, providing high reliability, safety, and environmental protection. It is suitable for indoor installation where fire safety and low maintenance are required.

Fire Safety & Environmental Protection 

Non-flammable and self-extinguishing characteristics eliminate the risk of fire and oil leakage, making it ideal for installation in buildings, subways, hospitals, and commercial facilities.

High Reliability

Excellent resistance to moisture, dust, and contaminants ensures stable operation even in harsh environments.

Low Maintenance

With no oil required, maintenance is minimized, reducing operating costs and improving long-term reliability.

Compact Design

Optimized insulation structure enables a compact footprint and efficient space utilization.

Applicable Standard		IEC 60076-11, KS C 4311
Frequency		50, 60Hz
Insulation class		B or F
Temperature rise		80℃ or 100℃
BIL (kV)	System Voltage	24	7.2	3.6	0.6 below
	Power frequency withstand voltage	50	20	10	3
	Impulse Voltage	95	40	20	-
Primary voltage (kV)		22.9	6.6	33.3	0.6 below
Tap voltage (kV)		F23.9-R22.9-	F6.9-R6.6-6.3-	F3.45-R3.3-3.15-	-
		21.9-20.9-19.9	6.0-5.7	3.0-2.85
Secondary voltage (kV)		6.6, 3.3, 0.48, 0.44, 0.38, 0.22

Applicable Standards		IEC 60076-11, KS C 4311
Frequency		50 / 60 Hz
Insulation Class		B or F
Temperature Rise		80℃ or 100℃
Insulation Level (BIL)	System Voltage (kV)	24	7.2	3.6	≤ 0.6
	Power Frequency Withstand Voltage (kV)	50	20	10	3
	Lightning Impulse Voltage (kV)	95	40	20	-
Primary Voltage (kV)		22.9 / 6.6 / 33.3 / ≤ 0.6
Tap Changer Range (kV)	22.9 kV	23.9 - 22.9 - 21.9 - 20.9 - 19.9
	6.6 kV	6.9 - 6.6 - 6.3 - 6.0 - 5.7
	3.3 kV	3.45 - 3.3 - 3.15 - 3.0 - 2.85
Secondary Voltage (kV)		6.6 / 3.3 / 0.48 / 0.44 / 0.38 / 0.22

Sungjin General Electric Co.,Ltd.