24KV VCB indoor high voltage vacuum circuit breaker with embedded poles

KEY WORDS:High pressure vacuum switch

DETAILS

VS1-24 series of indoor high voltage vacuum circuit breaker with embedded poles is three phrase A.C.50 Hz indoor power distribution equipment with the rated voltage of 24 KV. It’ s used for protecting and controlling the electrical equipment in the fields of industry and mining enterprise, power plants and substation. The main conductive circuit of this type vacuum circuit breaker with spring mechanism is embedded pole,that can greatly improve the reliability of insulation, mechanical and breaking performance and really realize the free-maintenance and longer mechanical and electrical life. This type vacuum circuit breaker conforms to national standards and the stipulations of IEC standard. 

Ambient Conditions:

1. Ambient temperature: -10℃–+40℃

2. Ambient humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%;
3. Earthquake intensity: not exceed 8 degrees
4. Saturated vapor pressure: average pressure of a day should be no more than2. 2kPa,the average pressure of a month should be no more than 1.8kPa;
5. The height above sea level: 1000m(not including special requirements)
6.1t should be installed in the places without fire, explosion, serious filth, chemical corrosion and violent VS1 ration.

Item

Unit

Data

Rated voltage

kV

24

Rated frequency

Hz

50 / 60

sulation level

Thunder impulse withstand voltage (peak value)

kV

125

1min industrial frequency withstand voltage

kV

65

Rated short-circuit break current

kA

20

25

31.5

Rated current

A

630,1250

630,1250,1600

1250,1600, 2000,2500

industrial frequency withstand voltage

kA

20

25

31.5

Rated peak value withstand current

kA

50

63

80

Rated short circuit close current

kA

50

63

80

Rated operation order

 

O-0.3s-CO-180s-CO

Rated short-circuit current break and close time

times

20

Rated short-circuit duration

s

4

Mechanical life-span

times

10000

The two circuit power frequency withstand voltage

V

2000

Single capacitor bank breaking current

A

630

Back-to-back capacitor bank breaking current

A

400

Dynamic and static contacts allow

wear cumulative thickness

mm

3

Break-brake number (rated operating voltage)

ms

20~50

Close brake times (rated operating voltage)

ms

35~70

Rated points/close brake operating voltage

V

AC110 / AC220 / DC110 / DC220

Energy storage rated voltage of motor

V

AC110 / AC220 / DC110 / DC220

Motor power rating

w

70

Energy storage time

s

≤15

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