Circuit breaker for GIS (without disconnector and earthing switch)

Circuit breaker for GIS (without disconnector and earthing switch)

The circuit breaker is mainly used for the gas insulated switchgear. The product adopts the structure of the splint structure, and has the advantages of easy installation, reliable opening performance, long service life and maintenance-free. It is an ideal substitute for the vacuum circuit breaker for the gas insulated switchgear. Product performance meets the requirements of GB1984-2014 "AC high voltage circuit breaker" E2-M2-C2 circuit breaker.
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Product Details

The circuit breaker is mainly used for the gas insulated switchgear. The product adopts the structure of the splint structure, and has the advantages of easy installation, reliable opening performance, long service life and maintenance-free. It is an ideal substitute for the vacuum circuit breaker for the gas insulated switchgear. Product performance meets the requirements of GB1984-2014 "AC high voltage circuit breaker" E2-M2-C2 circuit breaker.



Item

Unit

Parameter

1

Rated voltage

kV

12

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated short time withstand current

kA

20/25

5

Rated peak withstand current

kA

50

6

Rated short circuit

S

4

7

Rated short circuit duration

kA

50

8

Theoretical operation

times

10000

9

Main circuit resistance

μΩ

≤60

10

Rated power frequency withstand voltage/min

kV

38 (in air)


Applying ambient conditions:

1. Altitude above sea level: no more than 2000m, earthquake intensity not exceed 8 degrees.

2. Ambient temperature: max temperature: +50℃, min. Temperature: -45℃.Average relative humidity daily: 95%, average relative humidity monthly: 90%

3. It should be installed in condition without obvious dust, fire, chemical erosion, explosion, vapor and salt spray.

4. Rated SF6 pressure:0.04MPa


Overall outline drawing:

image

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