Home Product Circuit Breaker Live Tank Circuit Breaker

Circuit BreakerLive Tank Circuit Breaker

General Description
  • IEC 62271, ANSI/IEEE Std C37, NEMA

  • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA

  • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369

  • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1

  • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m

  • High current switching capability, Reliable and Flexible solutions

Typical Specification

SF6 Gas Live Tank Circuit Breaker 40.5~363kV

Type

Unit

LW9

LW25

Rated voltage  

kV

40.5

72.5

126

145

170

252

363

Rated frequency

Hz

50/60

50/60

50/60

50/60

50/60

50/60

50/60

Rated continuous current

A

3150

3150

3150

3150

3150

4000

4000

Rated short circuit breaking current

kA

31.5/40

31.5/40

31.5/40

31.5/40

31.5/40

40/50

50

Rated short circuit making current

kA

80/100

80/100

80/100

80/100

80/100

100/125

125

Rated peak withstand current

kA

80/100

80/100

80/100

80/100

80/100

100/125

125

Short line fault breaking current

kA

36/30

36/30

36/30

36/30

36/30

45/37.5

45/37.5

Out of phase breaking current

kA

10

10

10

10

10

12.5

12.5

Rated power-frequency withstand Voltage

kV

95

160

230

275

325

460

510

Lightning Impulse withstand (BIL)

kV

185

350

550

650

750

1050

1175

Type of mechanism

-

Spring

Hydraulic

Mechanical endurance

times

≥5000

≥5000

≥5000

≥5000

≥5000

≥5000

≥5000

Rated operating sequence

-

O-0.3s-CO-180s-CO

Close time

ms

≤100

≤100

≤100

≤100

≤100

≤100

≤100

Open time

ms

≤30

≤30

≤30

≤30

≤30

≤30

≤30

Breaking time

ms

≤60

≤60

≤60

≤60

≤60

≤60

≤50

Three phase operation / single phase

-

3p

3p

3p/1p

3p/1p

3p/1p

1p

1p

Rated SF6 gas pressure  

Mpa

0.5

0.5

0.5

0.5

0.6

0.6

0.6

Weight

kg

1000

1200

1400

1400

2500

3500

6600