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Home Product Circuit Breaker Outdoor Vacuum Circuit Breaker (Dog-house)

Circuit BreakerOutdoor Vacuum Circuit Breaker (Dog-house)

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

  • Porcelain bushings with extended creepage for higher BIL

  • Multi-ratio bushing-type CTs for measurement & protection

  • Standard configuration for 2-opening coils and 1-closing coil

  • High current switching capability, Reliable and Flexible solutions


Typical Specification

Outdoor Dead Tank Type Vacuum Circuit Breaker (Dog-house)

Item

Unit

Data

Rated voltage

kV

15

27

38

Rated current

A

600, 800

1200, 2000, 3000

600, 800

1200, 2000, 3000

600, 800

1200, 2000, 3000

Rated frequency

Hz

50/60

50/60

50/60

Rated insulation level





 Rated power frequency withstand voltage/1min 

kV

50

60

70

 Rated lighting impulse withstand voltage - BIL

kV

95

150

170

Rated short circuit breaking current

kA

20/25/31.5/40

20/25/31.5/40

25/31.5/40

Rated short time withstand current(4s)

kA

20/25/31.5/40

20/25/31.5/40

25/31.5/40

Rated peak value withstand current

kA

50/63/80/125

50/63/80/100

63/80/100

Operating mechanism type


Motor drive spring mechanism

Rated operating sequence


Isc < 40kA: O-0.3s-CO-180s-CO

Isc = 40kA: O-180s-CO-180s-CO

Rated short-circuit current breaking times/ electrical endurance

level

E2 (IEC62271-100)

Mechanical endurance

No.of times

10000

10000

10000

Rated auxiliary control voltage

V

AC220/110, DC220/110

Opening time

ms

20~50

20~50

20~60

Arcing time

ms

10~15

10~15

≤ 15

Full opening time

ms

30~65

30~65

30~65

Closing time

ms

35~70

35~70

35~70

IAC level


AFLR 25kA/1s or 31.5kA/1s

Enclosure protection level


IP55