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PRODUCT

Only Transformers. Built to Perfection.

OIL-IMMERSED TRANSFORMERS

OIL-IMMERSED TRANSFORMERS

Distribution Transformers

[High Efficiency]

Sungjin’s high-efficiency distribution transformers are designed to reduce energy loss and operating noise, delivering superior performance and reliability.


Low loss design  

  • No-load loss ↓ up to 50%
  • Load loss ↓ over 20%
  • Total loss ↓ over 30%

Achieved through grain-oriented electrical steel and advanced PHD core technology.


Low noise 

  • Noise reduction of 7–11 dB compared to KS standards
  • Designed for quieter and more stable operation

Applicable Standards

IEC 60076, JEC 2200, KS C 4317

Frequency

50 / 60 Hz

Temperature Rise

Oil

60℃

Winding

65℃

Insulation Level

(BIL)

System Voltage (kV)

24

7.2

3.6

≤ 0.6

Power Frequency Withstand Voltage (kV)

50

22

16

3

Lightning Impulse Voltage (kV)

150

60

40

-

Primary Voltage (kV)

22.9 / 6.6 / 3.3 / ≤ 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

Distribution Transformers

[High Efficiency]

Sungjin’s high-efficiency distribution transformers are designed to reduce energy loss and operating noise, delivering superior performance and reliability.


Low loss design  

  • No-load loss ↓ up to 50%
  • Load loss ↓ over 20%
  • Total loss ↓ over 30%

Achieved through grain-oriented electrical steel and advanced PHD core technology.


Low noise 

  • Noise reduction of 7–11 dB compared to KS standards
  • Designed for quieter and more stable operation
Applicable Standards
IEC 60076, JEC 2200, KS C 4317
Frequency
50 / 60 Hz
Temperature Rise
Oil
60℃
Winding
65℃
Insulation Level
(BIL)
System Voltage (kV)
24
7.2
3.6
≤ 0.6
Power Frequency Withstand Voltage (kV)
50
22
16
3
Lightning Impulse Voltage (kV)
150
60
40
-
Primary Voltage (kV)
22.9 / 6.6 / 3.3 / ≤ 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 kV3.45 - 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.

Add.  344-21 Maebawi-ro, Jangan-myeon, Manse-gu, Hwaseong-si, Gyeonggi-do, Republic of Korea.

Tel.  +82-31-355-9977

Fax. +82-31-356-1452

E-mail. sales@sjtr.co.kr

Copyright(C)SUNGJIN. All Rights Reserved.

Sungjin General Electric Co.,Ltd.

Add.  344-21 Maebawi-ro, Jangan-myeon, Hwaseong-si, Gyeonggi-do, Republic of Korea

Tel.  +82-31-355-9977   |   Fax. +82-31-356-1452   |   E-mail. sales@sjtr.co.kr

Copyright(C)SUNGJIN. All Rights Reserved.