붓싱형 변성기

붓싱형 변성기 BCT (Bushing-type Current Transformer)

  • 유입식 변압기용 (For Oil Immersed Transformer)

유입식변압기(차단기)의 절연 붓싱에 취부하여 사용하는 변류기로 절연력 향상을 위하여 Vamish에 함침하여 제작됩니다.
Core특성을 고려한 최적의 설계로 투자율이 높고 저항 특성이 우수합니다.

 

For Oil Immersed Transformers

 

  • 고압차단기용 (For High Voltage Circuit Breakers or C-Gics: Compact Gas Insulation System)

가스절연 차단기에 취부하여 사용하는 변류기로 SF6가스 안에서 동작되며 절연력 향상을 위하여 Polyester fllm으로 절연됩니다.
정밀급 비오차 특성 및 경량화 설계를 위하여 Nikel core등 특수 core가 사용되기도 합니다.

 

For High Voltage Circuit Breakers or C-Gics: Compact Gas Insulation System

  • Maximun system voltage : 170, 245, 362, 525(550), 765(800)kV
  • For a current transformer without primary winding and without primary insulation of its own, the value Um = 0.72(0.66) kV is assumed.

 


 

SPECIFICATIONS

A. Class & Burden

Standard Class(%) Sec. 5A VA Sec. 1A VA Power Factor NOTE

ANSI/IEEE

C57.13

C57.13.6

0.3/0.6/1.2

0.15S/0.15

B-0.1 2.5 B-0.5 0.5 0.9 Metering
B-0.2 5.0 B-0.1 1.0
B-0.5 12.5 B-2.5 2.5
B-0.9 22.5 B-4.5 4.5
B-1.8 45 B-9 9.0

 

Standard Class(%) VA(Sec. 5A) VA(Sec. 1A) Power Factor NOTE

ANSI/IEEE

C57.13

C50

12.5 2.5 0.5 Relaying
C100 25.0 5
C200 50 10
C400 100 20
C800 200 40

 

Standard Class(%) VA(Sec. 5A) Power Factor NOTE

 

IEC 60044-1

0.2S/0.5S

01./0.2/0.5

1.0/3.0/5.0

5 ~ 40

Lss than 5

0.8

1.0

Metering
5P 5 ~ 40 0.8 Relaying
10P
5PR
 
2.5 ~ 10 0.8 or 1.0  
10PR
Px or X
 
1.0  

 

Standard Class(%) VA(SEC. 5/1A) Power Factor NOTE
IEC 60044-6 TPS 1.0 Relaying
TPX
TPY
TPZ

 

 

B. Multi-tap Ratio Table

Basic Ratio  Extended Ratio  Basic Ratio  Extended Ratio 
Current Rating(A) terminals Current Rating(A) terminals Current Rating(A) terminals Current Rating(A) terminals

600/5

400/5

150/5

100/5

X1-X5

X1-X4

X1-X3

X1-X2

500/5

450/5

300/5

250/5

200/5

50/5

X2-X5

X3-X5

X2-X4

X3-X4

X4-X5

X2-X3

3000/5

2500/5

2200/5

1000/5

X1-X5

X1-X4

X1-X3

X1-X2

2000/5

1500/5

1200/5

800/5

500/5

300/5

X2-X5

X2-X4

X2-X3

X3-X5

X4-X5

X3-X4

1200/5

800/5

300/5

200/5

X1-X5

X1-X4

X1-X3

X1-X2

1000/5

900/5

600/5

500/5

400/5

100/5

X2-X5

X3-X5

X2-X4

X3-X4

X4-X5

X2-X3

4000/5

3000/5

2000/5

500/5

X1-X5

X1-X4

X1-X3

X1-X2

3500/5

2500/5

1500/5

1000/5

X2-X5

X2-X4

X2-X3

X3-X4

2000/5

1500/5

1200/5

400/5

X1-X5

X1-X4

X1-X3

X1-X2

1600/5

1100/5

800/5

500/5

300/5

X2-X5

X3-X5

X2-X4

X3-X4

X4-X5

X2-X3

5000/5

4000/5

2000/5

1500/5

X1-X5

X1-X4

X1-X3

X1-X2

3500/5

3000/5

2500/5

2000/5

1000/5

500/5

X2-X5

X3-X5

X2-X4

X3-X4

X4-X5

X2-X3

 

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